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一个早期的东亚血统与意外低的丹尼索瓦祖先

Jiaqi Yang¹, Leonardo N M Iasi¹, Qiaomei Fu²

¹Department of Evolutionary Genetics, Max-Planck-Institute for Evolutionary Anthropology, 04103 Leipzig, Germany.

Current biology : CB

|October 21, 2025

概括

现代人类的丹尼索瓦祖先因与各种早期人类群体的混合而变化. 早期的东亚人通过基因流动将丹尼索瓦DNA传播到欧亚大陆,塑造了当前的遗传多样性.

科学领域:

古遗传学是古遗传学的一部分.
人类进化人类进化
人口遗传学人口遗传学

背景情况:

丹尼索瓦人的祖先在当今人类中分布不均,起源于不同的丹尼索瓦人群.
了解这种异质性是解读早期欧亚现代人类人口历史的关键.
分散后的人口迁移和混合掩盖了丹尼索瓦人遗传贡献的起源.

研究的目的:

调查古代和当今人类的丹尼索瓦祖先之间的关系.
为了阐明德尼索瓦人在欧亚大陆的遗传异质性的起源.
为了重建早期现代人类人口动态和混合事件.

主要方法:

从整个欧亚大陆的早期现代人类基因组中分析古代DNA.
随着时间的推移,对丹尼索瓦人的祖先模式进行比较基因组分析.
追踪古老和现代人类群体之间的基因流动和混合事件.

主要成果:

在欧亚人中,丹尼索瓦人的祖先水平因不同早期现代人类血统的混合而变化.
古代日本 (Jomon) 个体显示出极少的丹尼索瓦血统,这表明古代东亚血统的丹尼索瓦贡献很少.
早期的东亚大陆人表现出东欧亚地区丹尼索瓦人祖先的最高水平,早于最后一个冰川最大值,涉及多个丹尼索瓦人群.

结论:

丹尼索瓦人的祖先主要通过来自早期东亚人口的基因流向传播到欧亚大陆.
古代和今天的基因组揭示了连续的丹尼索瓦祖先共享,突出了持续的人口相互作用.
这项研究系统地调查了多年来丹尼索瓦人的混合物,促进了对欧亚人类人口历史的理解.

关键词:

丹尼索瓦人丹尼索瓦人东亚地区的东亚地区.乔蒙·乔蒙 (Jomon Jomon) 是一个名字.这是一种古老的内向侵略.人口历史人口历史

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