适应性表观遗传分歧可以促进生态物种化.
Nicholas P Planidin1,2, Clarissa F de Carvalho3, Jeffrey Feder4
1Centre d'Écologie Fonctionnelle et Évolutive, Montpellier, France.
Proceedings. Biological sciences
|September 16, 2025
概括
表观遗传变异可以通过创建繁殖隔离 (RI) 来驱动物种化,即使是高迁移. 高度诱导的表观遗传标记促进RI,特别是当环境诱导和跨代遗传强烈时.
科学领域:
- 进化生物学是进化的生物学.
- 遗传学 遗传学 是一个
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 迁移使种群同质化,通过减少遗传差异来阻碍物种化.
- 环境诱导的表观遗传标记可以持续存在,尽管基因流动,但在种群之间仍然存在分歧.
研究的目的:
- 模拟表观遗传变异如何影响生殖隔离 (RI) 和物种化.
- 调查环境诱导和跨代表观遗传对 RI 的影响.
主要方法:
- 在分歧选择下开发了一种量化RI在与表观遗传控制的基因位点相关的中性遗传位点的模型.
- 评估了环境对表观遗传状态诱导及其代际传播的影响.
主要成果:
- 在高迁移率下,表观遗传局部产生了比同等遗传局部更强的RI,特别是在高度诱导的情况下.
- 在较低的迁移率下,RI强度随着代际表观遗传状态传染率的提高而增加.
结论:
- 表观遗传变异可以促进物种化,尤其是在高迁移的情况下.
- 表明物种化制度的进展:可诱导的表观遗传标记,可传播的表观遗传标记,最后是遗传差异化.
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