进化加速增加了人类和猿类之间的面分歧
Aida Gómez-Robles1, Amy Drennan1, Maricci Basa2
1Department of Anthropology, University College London, London, UK.
Proceedings. Biological sciences
|October 21, 2025
概括
大猿表现出比吉本更高的面多样性,这是由于它们的神经头脑上的独特进化压力. 人类表现出最高的进化速率,表明其面发育有明显的选择性压力.
科学领域:
- 进化生物学是进化的生物学.
- 古人类学古人类学.
- 比较解剖学的比较解剖学.
背景情况:
- 人类类 (大猿和人类) 显示的面多样性大于hylobatids (较小的猿).
- 这种差异存在,尽管这些群体之间的多样化时间表和遗传差异相似.
- 了解推动这种差异的进化力量对于进化研究至关重要.
研究的目的:
- 为了研究不同的人类类与海洛巴丁的不同面多样性背后的进化动态.
- 为了确定神经和面部多样性是否在类似或不同的选择性压力下演变.
- 为了确定这些群体内的特定物种的进化模式,特别是人类.
主要方法:
- 采用三维高密度几何形态测量来分析面变异.
- 运用了植物遗传学比较方法来评估进化速率和模式.
- 大猿,小猿和人类之间的多样性水平的比较.
主要成果:
- 大猩猩的神经的多样性超过了与子相比的中性进化预期.
- 然而,面部多样性显示出大猿和两种类型的相似进化动态.
- 人类在大多数面部区域中表现出最高的进化速率,无论男女.
结论:
- 大猿神经的多样性受到属性特定的选择性压力 (神经认知,社会,生态) 的影响,不像,它受到稳定选择和基因流动的约束.
- 面部进化在两种类型的猿类和子中都遵循了类似的模式.
- 人类拥有独特的面进化轨迹,由强大的人类特异性选择性压力驱动,影响神经和面部结构.
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