中国貉线粒体DNA多态性及其与亚种分化的关系  

mtDNA Polymorphism and Differentiation of Subspecies of Chinese Raccoon Dog (Nyctereutes procyonides)

作　　者：赵玮[1] 庄炜[1] 施立明[1] 

机构地区：[1]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

出　　处：《Acta Genetica Sinica》1994年第1期7-16,共10页

基　　金：国家自然科学基金

摘　　要：本文以８种限制性内切酶对来自７个地区的１４只中国貉（Ｎｙｃｔｅｒｅｕｔｅｓｐｒｏｃｙｏｎｉｄｅｓ）进行了ｍｔＤＮＡ的ＲＦＬＰ分析，并构建了貉ｍｔＤＮＡ的限制酶物理图谱。根据各群体间的遗传距离构建ＵＰＧ分子系统树，结合形态、地理分布资料对中国貉的亚种分化进行了探讨。结果表明，中国貉的指名亚种已发生明显的遗传分化；对于分类地位没有确定的华北和陕西群体，建议将它们各自单独定为一个亚种；中国貉最先发生南北分歧，然后发生东西分歧。The mtDNA from 14 Raccoon dogs of 7 geographical populations was analyzed with 8 restiction endonucleases,and the restriction map was constructed. Furthermore UPG molecular phylogenetic trees of the mtDNA were constructed based on the genetic distances. Our results indicated that the differentiation was obvious within geographical populations of the subspecies N. p. procyonoides, and that the event of divergence in Chinese Raccoon dog first occurred between the southern and northern populations,and then,between the western and the eastern populations. We proposed that both of the Huabei and Shanxi populations which had not been identified could be classified into two independent subspecies respectively.

关 键 词：线粒体 DNA 亚种 分化 貉属 

分 类 号：Q959.838[生物学—动物学]