中国辽宁锡伯族群体3个短串联重复位点的遗传多态性分析

背景:对常染色体STR基因座的多态性的研究可为法医学亲权鉴定提供基础数据.目的:探索辽宁锡伯族D16S539,THO1,D13S317 3个常染色体基因座的遗传多态性,建立锡伯族群体的遗传学基础数据.方法:采集辽宁省沈阳市新城子区黄家乡锡伯族中小学的150名中小学生口腔黏膜细胞,Chelex 100法提取DNA,进行荧光标记PCR扩增,产物在Li-COR 4300基因分析仪上进行电泳,E-seq分析软件计算扩增产物片段相对大小,进行基因型分型.调查辽宁地区锡伯族群体 3个 STR基因座等位基因频率,进行遗传多态性分析.结果与结论:辽宁锡伯族群体中3个STR基因座具有遗传多态性,其基因型分布符合Hardy-Weinberg平衡定律.辽宁锡伯族群体中3个STR基因座的杂合度分布在0.769~0.810;个人识别力分布在0.824~0.929,累积个人识别能力为0.999;多态信息量分布在 0.650~0.790;非父排除率分布在0.565~0.790,累积非父排除率为0.979.说明辽宁锡伯族群体3个常染色体STR基因座有较高的非父排除率和个体识别能力,可为法医学亲子鉴定和个体识别及移植配型等遗传学研究提供依据.

Genetic polymorphisms of three short tandem repeat loci in Liaoning Xibo population of China

BACKGROUND: Studying the gene polymorphism of autosome short tandem repeat (STR) gene loci can provide basic data for forensic paternal power identification. OBJECTIVE: To explore the genetic polymorphism of three STR loci, D16S539, THO1, D13S317, in Liaoning Xibo population of China and establish the genetic basic data of Xibo population. METHODS: Buccal samples were obtained from 150 primary and middle school students of Xibo population living in Liaoning province and PCR amplification reactions of each S...