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对伊拉克索拉尼库尔德人的X-STR分析

Balnd M Albarzinji¹, Shams Hadi², Bahez Ismael¹

¹Kurdistan Institution for Strategic Studies and Scientific Research (KISSR), Sulaymaniyah, Iraq.

|November 27, 2023

概括

一个新的索拉尼库尔德人的数据库使用12X短串联重复 (STR) 位置帮助法医和人口遗传学. 该研究确定了高度多态的位置,并分析了祖先的多样性,支持迁移中的创始人效应假设.

科学领域:

法医遗传学法医遗传学
人口遗传学人口遗传学
人类遗传学人类遗传学

背景情况:

基因数据库的开发对于法医调查和了解人口结构至关重要.
索拉尼库尔德人是一个种族群体,没有使用特定的遗传标记,如X短串重复 (STRs) 进行广泛研究.
研究种群内部和种群之间的遗传多样性,可以了解迁移模式和进化历史.

研究的目的:

为伊拉克索拉尼库尔德人开发一个基因数据库,专注于12个X短串联重复 (STR) 位点.
评估这些STR位点在索拉尼库尔德人口中的多态性和多样性.
分析索拉尼库尔德人的祖先组成和等位基富,以了解他们的人口历史和移民模式.

主要方法:

使用调查员Argus X-12 QS套件对117名无关索拉尼库尔德人的基因定型.
使用诸如多态信息内容 (PIC) 和基因多样性 (GD) 等参数对多态的分析.
使用[公式:参见文本]比率评估链接不平衡 (LD) 和祖先组成,以及与特异性和私有等位基因.

主要成果:

DXS10135位点显示了最高的多态性 (PIC=0.94565,GD=0.95623),而DXS8378显示了最低的多态性 (PIC=0.61026,GD=0.68170).
鉴定了DXS8378位点的一个罕见的等位基因,该等位基因基因在标准套件的等位基因阶梯中并不存在.
在链接组3 (LG3) 的DXS10103和DXS10101位点之间发现了显著的链接不平衡.
中东的人口表现出最低的[公式:参见文本]比率 (0.23243),表明祖先多样性较低,而欧洲的人口表现出最高的 (0.27122).
非洲和中东地区呈现出最高水平的特异性和私人等位基因,这表明更高的等位基因丰富度.

结论:

开发的STR数据库为索拉尼库尔德人提供了有价值的遗传信息,有助于法医和人口遗传学.
这项研究突出了索拉尼库尔德人口中显著的遗传多样性,并提供了对其祖先起源的见解.
这些发现支持在迁移事件期间重复创始人效应的假设,影响祖先变异性和等位基丰富性.

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