茶洞话群体的Y染色体遗传结构及其父系起源研究  

Genetic Structure of Y Chromosome and Paternal Origin of the Population Speaking Chadong, Guangxi

作　　者：邓琼英[1] 王晓庆[1] 王传超[2] 李辉[2] 

机构地区：[1]广西医科大学人体解剖学教研室,南宁530021 [2]复旦大学生命科学学院现代人类学教育部重点实验室,上海200433

出　　处：《人类学学报》2014年第1期118-124,共7页Acta Anthropologica Sinica

基　　金：广西自然科学基金资助项目(2011GXNSFA018240);国家自然科学基金资助项目(31160222)

摘　　要：我国广西的桂东北地区大约有20,000人使用茶洞话,该群体的族源问题一直存在争议。本文为调查茶洞话群体的Y染色体遗传结构,探讨其父系起源,对临桂县使用茶洞话的21名无关男性个体的Y-STR和Y-SNP进行了检测分型,并对该群体与周边民族的遗传关系进行了研究分析。结果显示:茶洞话群体的17个Y-STR位点具有丰富的遗传多态性,适用于群体遗传学和法医学研究;Y染色体高频单倍群为O2*-P31和O2a1*-M95,表明茶洞话群体具有显著的百越民族系统侗傣族群的遗传背景;N-J树和主成分分析显示茶洞话群体与仫佬族的父系遗传关系较之与毛南族和汉族更亲近。本研究结果为茶洞话群体的族源研究提供了遗传学证据。There are about 20000 individuals speaking a special dialect of Chadong living in Northeastern Guangxi. The origin of the population has been a controversial research subject. In order to study the patemal origin of Chadong people, this research aims to investigate the genetic structure of Y chromosome by studying Y-STR and Y-SNP from 21 male Chadong individuals （unrelated） in Lingui County and by comparing the data of Chadong people with those of the surrounding populations. The multiplex detection of 17 Y-STR loci revealed a highly polymorphic genetic distribution, showing powerful potential for the loci to be used for population genetics and forensic research. High frequencies of haplogroup O2^＊-P31 and O2al^＊-M95 suggested that Chadong people have prominent Daic genetic background while N-J tree and principal component analysis indicated that Chadong people are closer to Mulam than to Maonan and Han peoples. These results provide genetic evidence for the origin of Chadong people.

关 键 词：茶洞话群体 Y-STR Y-SNP 遗传结构 父系起源 

分 类 号：Q986[生物学—人类学]