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乌拉圭对Y染色体人类多样性的洞察
Patricia Mut1, Bernardo Bertoni2, Rossana Sapiro3
1Departamento de Antropología Biológica, Facultad de Humanidades y Ciencias de la Educación, UdelaR, Montevideo, Uruguay.
概括
乌拉圭的男性基因库显示,由于多次移民浪潮,其欧洲起源多样化. 受欧洲移民和对土著和非洲男性的历史暴力影响的性别偏见混合,塑造了人口的遗传景观.
科学领域:
- 人口遗传学 人口遗传学
- 人类进化研究是人类进化的研究.
- 对Y染色体进行分析.
背景情况:
- 乌拉圭的人口起源和微观进化过程在拉丁美洲具有独特的特征.
- 以前对乌拉圭遗传变异性的研究基本上忽视了男性遗传系.
- 独特的祖先组成部分在地理上和性别上有所不同,受历史人口统计过程的影响.
研究的目的:
- 进行乌拉圭人口中男性遗传变异性的最新研究.
- 分析乌拉圭两个不同的地理区域的父系遗传谱系.
- 为了调查乌拉圭基因库中性别偏见的混合模式.
主要方法:
- 对Y染色体上13个双标记和27个短串重复 (STR) 的分析.
- 研究包括来自蒙特维多和塔库亚伦博的157名男性.
- 将遗传数据与家谱信息结合起来.
主要成果:
- 在这两个地区都发现了绝大多数的欧洲族群 (93.299%).
- 撒哈拉以南非洲人和美洲原住民的哈普洛组存在,特别是在塔库亚伦博,这表明强烈的性别偏见混合.
- 网络分析揭示了欧洲移民的不同来源,以及塔库亚伦博 (伊比利亚) 和蒙特维迪奥 (更多样化) 之间的明显亲和关系.
结论:
- 乌拉圭男性基因库是由来自不同来源的多个迁移浪潮塑造的.
- 强烈的性别偏见是显而易见的,归因于欧洲移民,对土著男性的历史暴力,以及对非洲人口的隔离.
- 人口扩张与19世纪和20世纪初的欧洲移民有关.
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