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在哈卡人群中对133种STR进行了法医分析和序列变化

Yuhang Feng¹, Yutao Zhao², Xiaoyu Lu³

¹MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China.

Frontiers in genetics

|February 6, 2024

概括

这项研究引入了大规模并行测序 (MPS) 来分析中国Hakka群体的短并行重复 (STR). 这些发现强调了133个STR在法医应用和人口遗传学方面的高效率,建立了一个重要的数据库.

科学领域:

法医遗传学法医遗传学
人口遗传学人口遗传学
基因组学就是基因组学.

背景情况:

短并列重复 (STR) 是法医科学中的重要遗传标记.
对于STR分析的传统PCR-CE方法具有局限性.
大规模并行测序 (MPS) 为STR分析提供了先进的功能,对中国人口多样性的研究有限.

研究的目的:

用MPS评估52种自体性STR (A-STR) 和81种Y-STR在梅州哈卡人群中的法医疗疗效果.
分析种群遗传多样性和种群内部和种群之间的亲属关系.
建立一个全面的STR遗传数据库,用于该地区的法医应用.

主要方法:

从梅州哈卡人群中对52个A-STR和81个Y-STR进行基因定型,使用MGISEQ-2000平台上的法医分析系统多重组SetB套件.
对STR位置的长度和序列多态度的分析.
对遗传多样性参数 (例如,Hobs,Hexp,HD,HMP,DC) 的统计分析和人口遗传比较.

主要成果:

证实了133个STR在梅州哈卡人群中进行法医识别的高效率.
观察到显著的遗传多样性,分别为A-STRs的554个和989个等位基因,以及基于长度和序列多态度的Y-STRs的464个和652个等位基因.
种群遗传分析表明,梅州哈卡与亚洲种群 (THI, KOR) 基于A-STR以及基于Y-STR的河南汉族种群的密切亲属关系.

结论:

来自STR重复区域序列的变异信息显著提高了法医识别的有效性.
这项研究为梅州哈卡人群的法医个人身份识别和父亲测试提供了必不可少的数据库.
生成的数据是研究梅州哈卡人口遗传结构和历史起源的重要资源.

关键词:

这就是A-STRR.梅州哈卡人口人口在STR中,STR是STR.这是Y-STRR.法医遗传学法医遗传学大规模并行测序.序列变化的变化.

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