现代人类生殖基因中的古老适应性内侵
Christopher Kendall1,2, Amin Nooranikhojasteh3, Esteban J Parra4
1Neurosciences and Mental Health Department, The Hospital for Sick Children, Toronto, ON, Canada. chris.kendall@sickkids.ca.
Communications biology
|September 27, 2025
概括
现代人类携带了像尼安德特人这样的古老人类的基因,影响了繁殖和适应. 这项研究揭示了118个生殖基因的适应性侵入,影响了人类的发育和疾病抵抗力.
科学领域:
- 人类进化遗传学人类进化遗传学
- 生殖生物学 生殖生物学
- 古遗传学是古遗传学的一部分.
背景情况:
- 现代人类与非洲以外的古老人类 (尼安德特人,丹尼索瓦人) 混在一起.
- 古老的内进化促进了适应新环境的过程.
- 陈旧的侵入性对生殖基因的影响仍未得到充分研究.
研究的目的:
- 研究与现代人类生殖相关的基因的适应性内侵.
- 识别影响生殖特征的古老的等位基因和单位基因.
- 探索古老的侵入在生殖组织和生殖途径中的功能后果.
主要方法:
- 对古老的等位基因进行全基因组关联研究 (GWAS).
- 识别古老的核心单元类型和积极选择的区域.
- 表达量的特征位点 (eQTL) 分析以识别监管变异.
- 对发育,癌症和生殖途径进行丰富分析.
主要成果:
- 确定了118个与繁殖相关的适应性内进基因.
- 发现了327个全基因组显著的古老等位基因,包括11个核心单位基因 (3个被积极选择).
- 发现超过300种古老变体作为eQTLs,调节176个基因,其中81%在生殖组织表达区域.
- 与胚胎发育,子宫内膜异位症,孕前症和前列腺癌保护相关的内进基因.
结论:
- 古老的内侵已经显著影响了现代人类的生殖基因调节.
- 选择的古老基因对整个生命周期的关键发育和生殖过程产生影响.
- 古老的变种可以保护某些癌症,如前列腺癌.
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