Variation in mitochondrial DNA and phylogeny of six species of pikas (Ochotona)

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	Variation in mitochondrial DNA and phylogeny of six species of pikas (Ochotona)
	Yu N 1; Zheng CL 1; Shi LM 2
	1997
发表期刊	JOURNAL OF MAMMALOGY
ISSN	0022-2372
卷号	78 期号:2 页码:387-396
合作性质	其它
摘要	Phylogenetic relationships of six species of Ochotona were investigated using mitochondrial DNA (mtDNA) restriction-site analysis. The phylogenetic tree constructed using PAUP was based on 62 phylogenetically informative sites with O. erythrotis designated as an outgroup. Two clades were evident. One contained O. curzoniae, O. huangensis, and O. thibetana. in the second, O. daurica was a sister taxon of O. cansus. The five species appear to come from different maternal lineages. The branching structure of the tree and sequence divergence confirm that huangensis and cansus are distinct species, and that mol-osa is a synonym of O. cansus rather than O. thibetana. Divergence time, estimated from genetic distances, indicates that the ancestors of the two maternal lineages diverged ca. 6.5 x 10(6) years ago. O. curzoniae diverged from O. huangensis, and O. daurica diverged from O. cansus, at about the same time (ca. 3.4 x 10(6) years ago). These data suggest a period of rapid radiation of the genus Ochotona in China, perhaps during the late Pliocene. These calculations correspond roughly to tectonic events and environmental changes in China throughout this period, and appear to be substantiated by the fossil record.
关键词	Ochotona Pika China Mitochondrial Dna Phylogeny Restriction Maps Taxonomy
资助者	This study was supported by the National Natu- ral Science Foundation of China (39170116), the Foundation of Academia Sinica for Taxonomy and Fauna, and the Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zo- ology, Academia Sinica. ; This study was supported by the National Natu- ral Science Foundation of China (39170116), the Foundation of Academia Sinica for Taxonomy and Fauna, and the Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zo- ology, Academia Sinica.
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收录类别	SCI
语种	英语
资助者	This study was supported by the National Natu- ral Science Foundation of China (39170116), the Foundation of Academia Sinica for Taxonomy and Fauna, and the Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zo- ology, Academia Sinica. ; This study was supported by the National Natu- ral Science Foundation of China (39170116), the Foundation of Academia Sinica for Taxonomy and Fauna, and the Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zo- ology, Academia Sinica.
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/5129
专题	细胞与分子进化开放实验室
作者单位	1.Northwest Plateau Institute of Biology, Chinese Academy of Science, Xining 810001, Qinghai Province, People's Republic of China 2.Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zoology, Chinese Academy of Science, Kunming, Yunnan Province, 650223, People's Republic of China
推荐引用方式 GB/T 7714	Yu N,Zheng CL,Shi LM. Variation in mitochondrial DNA and phylogeny of six species of pikas (Ochotona)[J]. JOURNAL OF MAMMALOGY,1997,78(2):387-396.
APA	Yu N,Zheng CL,&Shi LM.(1997).Variation in mitochondrial DNA and phylogeny of six species of pikas (Ochotona).JOURNAL OF MAMMALOGY,78(2),387-396.
MLA	Yu N,et al."Variation in mitochondrial DNA and phylogeny of six species of pikas (Ochotona)".JOURNAL OF MAMMALOGY 78.2(1997):387-396.

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