银鲴自然群体线粒体DNA的遗传分化  

MITOCHONDRIAL DNA DIVERSITY IN POPULATIONS OF XENOCYPRIS ARGENTEA AS REVEALED BY RESTRICTION ANALYSIS

作　　者：肖武汉[1] 张亚平[2] 

机构地区：[1]中国科学院水生生物研究所,武汉430072 [2]中国科学院昆明动物研究所细胞及分子进化开放实验室,昆明650223

出　　处：《水生生物学报》2000年第1期1-10,共10页Acta Hydrobiologica Sinica

基　　金：国家自然科学基金!39870123;云南省自然学基金;中国科学院昆明动物研究所细胞及分子进化开放实验室基金

摘　　要：运用21种限制性内切酶对银鲴自然群体进行了mtDNA的限制性片断长度多态性（RFLP）分析。发现银鲴自然群体存在丰富的mtDNA多态性，从4个群体39个个体中，共检测到12种单倍型，对这一现象的成因进行了探讨。依据单倍型和群体的系统发育关系，结合地理分布的资料，对其现今分布区相互间的历史联系及其对银鲴起源和分化的影响进行了分析。The restricted fragment length polymorphism was employed to investigate the genetic diversity in four populahons of Xenocyris argentea distributed in China.The abundance of mtDNA variation was found in natura populations of X. argentea.Twelve haplotypes were detected from 39 individuals belonging to 4 populations. The mechanism of this phenomenon was also discussed. Both the phylogeography of population distributions and its effect on the origination and diversity of X. argentea were analyzed according to the phylogeny of the haplotypes and populations when considering the data of their present distributions.

关 键 词：银鲴 自然群体 线粒体DNA 遗传分化 

分 类 号：Q959.468[生物学—动物学]