武汉汉族8个Y染色体双等位基因标记遗传多态性

目的筛选汉族群体中具有多态性的Y染色体双等位基因标记并研究其等位基因及单体群频率分布, 为法医学应用和群体进化研究提供基础数据。方法采用片段长度差异等位基因特异性PCR和PAGE技术对武汉地区160名男性汉族无关个体的8个Y染色体双等位基因标记(M9、M89、M111、M119、M122、M134、IMS-JST003305 和SRY+465)进行分型。结果 8个双等位基因标记在武汉汉族群体中均具有遗传多态性,其基因多样性(GD)范围为 0．0126-0．4830,共检出9种不同单体群(Hg1～9),其单体群多样性(HD)为0．7776。结论 8个Y染色体双等位基因标记组成的单体群在法医学应用和群体进化研究中具有一定的实用价值,可作为Y-STRs标记的有效补充。

Haplogroup diversity of 8 biallelic markers on human Y chromosome in Wuhan Han population

Objective To screen polymorphic biallelic markers on human Y chromosome in Han population , calculations of their allele and haplogroup frequency distributions to provide data for forensic application and population evolution studies. Methods Genotyping of 8 biallelic markers on human Y chromosome (M9, M89, M111, Ml19, M122, M134, IMS-JST0033050 and SRY 465) were carried out in a sample of 160 unrelated Chinese male individuals living in Wuhan using fragment length discrepant allele specific PCR (FLDAS-PCR) and PAGE technique. Results Genetic polymorphism were identified for all 8 biallelic markers in Wuhan Han population. Gene Diversity (GD) ranges from 0.0126 to 0.4830. A total of 9 different haplogroups(Hg 1-9)were observed and the haplogroup diversity (HD) were 0.7776. Conclusion The haplogroups formed by 8 biallelic markers are highly polymorphic, and can be used in conjunction with Y-STRs in forensic medicine and population evolution studies.