白颊长臂猿染色体的研究

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	白颊长臂猿染色体的研究
其他题名	A Study on The Chromosomes of White-Cheeked Gibbon (Hylobates leucogenys)
	刘瑞清; 佴文惠; 陈玉泽; 余定会
	1996
发表期刊	动物学研究
卷号	17 期号:3 页码:341-346
其他摘要	本文对我国云南南部的白须长臂猿（Ｈ．ｌｅｕｃｏｇｅｎｙｓ）染色体的Ｇ带、Ｃ带、晚复制带及Ａｇ－ＮＯＲｓ进行了较为详细的研究。它的２ｎ＝５２，核型公式为４４（Ｍ或ＳＭ）＋６（Ａ），ＸＹ（Ｍ，Ａ）。Ｃ带表明一些染色体着丝点Ｃ带弱化；有的染色体出现插入的和端位的Ｃ带；Ｘ染色体两臂有端位Ｃ带，Ｙ染色体是Ｃ带阳性和晚复制的。Ａｇ－ＮＯＲｓ的数目，雌体有４个，雄体有５个，Ｙ染色体上具ＮＯＲ。本文对白颊长臂猿与其它长臂猿间的亲缘关系、核型进化的可能途径进行了讨论。 ; White-cheeked gibbon (H.leucogenys) is distributed in the south of Yunnan,China.The chromosomes of a female and a male were studied by several banding techniques (G-,C- and Ag-staining),and a techniqe for simultaneous exhibiting chromosome replication patterns and late replicating Y chromosome.The diploid chromosome number is 52.There are 22 pairs of metacentrics or submetacentrics (Nos.1-22 );3 pairs of acrocentrics(Nos.23-25),and chromosomes Nos.23-24 with a secondary constriction near the centromere on the short arm.The X chromosome is a large metacentric,and the Y,the smallest acrocentric.Its karyotype formula is 44(M or SM)+6(A),XY(M,A).The centrimeric distribution of heterochromatin has been demonstrated in some chromosomes.In addion,there are 3 kinds of heterochromatin on the chromosomes:(1) absent of centromeric heterochromatin,(2) interstitial heterochromatin,(3) terminal heterochromatin.Interstitial heterochromatin has been observed on the biarm of X chromosome.Y chromosome is completely C-band positive.Silver staining revealed 5 chromosomes with NORs in the male specimen.4 Ag-NORs of them are located on the secondary constriction of chromosomes 23 and 24 respectively,and one of them is located on the Y chromosome which has been confirmed by Fluorescence in situ hybridization (FISH) in the same cell.There are 4 chromosomes with Ag-NORs in the female specimen,and they are also located on the secondary constriction of chromosomes 23 and 24.Moreover,the association of Ag-NORs have been observed.Base on the above results,the relationship in gibbons and the way of chromosome evolution in the genus Hylobates have been discussed.
关键词	颊长臂猿染色体带型云南
收录类别	其他
语种	中文
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/9859
专题	遗传资源与进化国家重点实验室_保护遗传学(细胞库) 细胞与分子进化开放实验室
作者单位	中国科学院昆明动物研究所细胞与分子进化开放研究实验室,昆明650223
第一作者单位	昆明动物研究所
推荐引用方式 GB/T 7714	刘瑞清,佴文惠,陈玉泽,等. 白颊长臂猿染色体的研究[J]. 动物学研究,1996,17(3):341-346.
APA	刘瑞清,佴文惠,陈玉泽,&余定会.(1996).白颊长臂猿染色体的研究.动物学研究,17(3),341-346.
MLA	刘瑞清,et al."白颊长臂猿染色体的研究".动物学研究 17.3(1996):341-346.

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文件名称/大小	文献类型	版本类型	开放类型	使用许可
1996173341.pdf（361KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	请求全文