Y-SNP多态性揭示的海南岛黎族、回族和仡隆人群的起源  

Origins of the Three Minority Populations in Hainan Island as Seen from Y-SNP

作　　者：孙元田[1] 杨波[2] 区彩莹[1] 周贞鉴[1] 苏振宇[1] 李冬娜[1] 

机构地区：[1]海南医学院生物教研室,海口571101 [2]第三军医大学解剖教研室,重庆400038

出　　处：《科技导报》2007年第24期44-47,共4页Science & Technology Review

基　　金：国家自然科学基金项目(30460056)

摘　　要：分析黎族、海南回族、仡隆人群中Y染色体单倍型(Y-SNP)的分布,从遗传学角度研究3个人群的起源。选取部分与东亚人群起源相关的Y染色体非重组区单核苷酸多态性位点,采用PCR-RPLF和geno-typing法分析其多态性,观察由这些多态性位点组成的单倍型在海南3个人群中的分布情况,并将结果与其他人群的分布进行比较。结果在黎族人群中发现4种Y染色体单倍型,其中单倍型O*-175为5个支系所共有,且分布频率都在95%以上。回族人群出现4种单倍型,仡隆人群有2种单倍型。由单倍型种类、频率分布及主成分分析均揭示,黎族与台湾原住民及百越最为接近,可能有共同的起源。海南回族与中国北方回族遗传关系较远;仡隆人群与汉族差异较大,而与百越的仡佬族、水族及黎族遗传关系接近。This paper explores the origins of the three minority populations （Li, Hainan-Hui and Gelong） in Hainan Island by analyzing the frequency of Y-chromosome haplotype of six Y-SNP alleles in 410 male individuals, selecting six Y chromosome biallelic markers located at the nonrecombining portion by using PCR-RFLP. Four haplotypes were detected in Li ethnic group.The O^＊-M175 haplogroup is common and predominant （frequency 〉95） in all branch groups of Li. Four haplotypes exist in Hui ethnic group and 2 in Gelong population. The principal component analysis of SNP haplotype distribution shows that Li ethnic groups, Paiwan, Ataya and Baiyue might origin from a common ancestry. Hainan-Hui ethnic group is different from Hui population in north China and other areas, and there is a close relationship among Gelong, Li and Gelao populations.

关 键 词：Y染色体 单核苷酸多态性 单倍型 

分 类 号：Q987[生物学—遗传学]