Objective Y-Chromosomal short tandem repeat polymorphism(Y-STR)analysis plays an indispensable role in the identification of male individuals,population genetics,and biogeographic research.While profiles of many popul...Objective Y-Chromosomal short tandem repeat polymorphism(Y-STR)analysis plays an indispensable role in the identification of male individuals,population genetics,and biogeographic research.While profiles of many populations based on Y-STR markers in human genomes are ample,haplotype data for the Wuwei Han are still scarce.Methods In this study,2180 unrelated Wuwei Han male individuals residing in Gansu Province,China were collected and genotyped using the novel Microreader™40Y Plus ID system.Phylogenetic relationship reconstructions,multidimensional scaling(MDS),and heatmap analysis were performed based on the genetic distance(Rst)values between our studied population and other populations of the Ymax module in the Y-STR Haplotype Reference Database(YHRD).Results A total of 2129 unique haplotypes were obtained,and the haplotype diversity(HD)and discrimination capacity(DC)for the Wuwei Han were 0.9999 and 0.9931,respectively.Conclusion Our results demonstrate that the Wuwei Han population had intimate genetic relationships with East Asians,especially the geographically close Han populations.Overall,this Y-Chromosomal assay gives valuable information about paternal lineages in male individual tracking and genealogical database construction.展开更多
作为男性特有的性染色体,Y染色体因父系遗传的特征在法医物证鉴定中具有独特的应用价值。近年来,随着检测技术的发展和分析手段的研发,Y染色体上的多种遗传标记得到了进一步探索,例如应用于家系排查的Y染色体短串联重复序列(Y-chromosom...作为男性特有的性染色体,Y染色体因父系遗传的特征在法医物证鉴定中具有独特的应用价值。近年来,随着检测技术的发展和分析手段的研发,Y染色体上的多种遗传标记得到了进一步探索,例如应用于家系排查的Y染色体短串联重复序列(Y-chromosome short tandem repeat,Y-STR),突变率极低、具有男性谱系结构特征的Y染色体单核苷酸多态性(Y-chromosomal single nucleotide polymorphism,Y-SNP),以及分型简便且适用于降解检材的插入/缺失多态性(insertion/deletion polymorphism,InDel)。Y染色体遗传标记在法医学家系排查、混合斑检测、群体分析以及人类迁徙等方面的研究进展显著。本文将从Y染色体遗传标记、检测方法及其在法医学领域的研究与应用进行综述,旨在为后期相关研究及实践提供参考。展开更多
基金supported by grants from the Shaanxi Basic Research Program of Natural Science(No.2021JQ-392)the International Cooperation Project of Shaanxi Province(No.2021KW-47).
文摘Objective Y-Chromosomal short tandem repeat polymorphism(Y-STR)analysis plays an indispensable role in the identification of male individuals,population genetics,and biogeographic research.While profiles of many populations based on Y-STR markers in human genomes are ample,haplotype data for the Wuwei Han are still scarce.Methods In this study,2180 unrelated Wuwei Han male individuals residing in Gansu Province,China were collected and genotyped using the novel Microreader™40Y Plus ID system.Phylogenetic relationship reconstructions,multidimensional scaling(MDS),and heatmap analysis were performed based on the genetic distance(Rst)values between our studied population and other populations of the Ymax module in the Y-STR Haplotype Reference Database(YHRD).Results A total of 2129 unique haplotypes were obtained,and the haplotype diversity(HD)and discrimination capacity(DC)for the Wuwei Han were 0.9999 and 0.9931,respectively.Conclusion Our results demonstrate that the Wuwei Han population had intimate genetic relationships with East Asians,especially the geographically close Han populations.Overall,this Y-Chromosomal assay gives valuable information about paternal lineages in male individual tracking and genealogical database construction.
文摘作为男性特有的性染色体,Y染色体因父系遗传的特征在法医物证鉴定中具有独特的应用价值。近年来,随着检测技术的发展和分析手段的研发,Y染色体上的多种遗传标记得到了进一步探索,例如应用于家系排查的Y染色体短串联重复序列(Y-chromosome short tandem repeat,Y-STR),突变率极低、具有男性谱系结构特征的Y染色体单核苷酸多态性(Y-chromosomal single nucleotide polymorphism,Y-SNP),以及分型简便且适用于降解检材的插入/缺失多态性(insertion/deletion polymorphism,InDel)。Y染色体遗传标记在法医学家系排查、混合斑检测、群体分析以及人类迁徙等方面的研究进展显著。本文将从Y染色体遗传标记、检测方法及其在法医学领域的研究与应用进行综述,旨在为后期相关研究及实践提供参考。
