Advances in research of mammalian vomeronasal pheromone perception and genetic components unique to vomeronasal signal transduction pathway
Yang H1; Meng XX2; Zhang YP*1,3; Yu L*3; Jin W3; Zhang X3
2010
发表期刊CHINESE SCIENCE BULLETIN
卷号55期号:23页码:2473-2478
合作性质其它
摘要

The recognition and perception of chemical signals from environments are very important for the survival of organisms. In mammals, general chemical signals are mainly detected by the main olfactory system (MOS), while pheromones are primarily perceived by the vomeronasal system (VNS). Pheromones are chemicals released and recognized by individuals within the same species, which then induce physiological and behavioral changes in social and sexual activities. In this review, we focus on the recent advances on research in mammalian vomeronasal pheromone perception and those genetic components unique to vomeronasal signal transduction pathway, including vomeronasal receptor V1R and V2R gene families as well as transient receptor potential channel 2 gene (TRPC2), trying to shed light on further study of the molecular mechanisms of mammalian pheromone perception.

关键词Trpc2 Vomeronasal Receptor Molecular Evolution Vomeronasal System Pheromone
资助者This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239).
收录类别SCI
语种英语
资助者This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239). ; This work was supported by the National Key Basic Research Program of China (2007CB411600), National Natural Science Foundation of China (U0836603), National Undergraduate Students Research Training Fund from Ministry of Education of China, National Fund for Fostering Talents of Basic Science (J0730652), Research Training Fund from Experiment Teaching Center of Life Sciences, and Project of Higher Education Reform and Practice of Science and Engineering from Ministry of Education of China (239).
文献类型期刊论文
条目标识符http://ir.kiz.ac.cn/handle/152453/10452
专题科研部门_分子进化与基因组多样性(张亚平)
遗传资源与进化国家重点实验室
科研部门_进化与功能基因组学(施鹏)
作者单位1.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Kunming 650223, China
2.School of Life Science, Yunnan University, Kunming 650200, China
3.Laboratory for Conservation and Utilization of Bio-resource & Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, China
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Yang H,Meng XX,Zhang YP*,et al. Advances in research of mammalian vomeronasal pheromone perception and genetic components unique to vomeronasal signal transduction pathway[J]. CHINESE SCIENCE BULLETIN,2010,55(23):2473-2478.
APA Yang H,Meng XX,Zhang YP*,Yu L*,Jin W,&Zhang X.(2010).Advances in research of mammalian vomeronasal pheromone perception and genetic components unique to vomeronasal signal transduction pathway.CHINESE SCIENCE BULLETIN,55(23),2473-2478.
MLA Yang H,et al."Advances in research of mammalian vomeronasal pheromone perception and genetic components unique to vomeronasal signal transduction pathway".CHINESE SCIENCE BULLETIN 55.23(2010):2473-2478.
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