Menu
Sign In Search Podcasts Charts Entities Add Podcast API Pricing
Podcast Image

聊聊Sci

023-性染色体进化的统一理论与物种形成的两条法则

20 Jul 2025

Description

Lenormand 和 Roze 的研究提出了一个统一的理论,解释了性染色体的演化过程以及物种形成的两大规则:即海恩定律(异配性别在杂交后代中更容易不育或失去活力)和大X效应(X或Z染色体对杂交适应性的影响不成比例地大)。该理论指出,这些现象都源于顺式和反式基因表达调控因子的共同演化,这导致了杂种后代中剂量补偿基因的错误表达。文章通过模拟不同性染色体演化阶段的情景,验证了该模型能够解释这些普遍存在的生物学观察,并为理解生殖隔离的遗传基础提供了新的视角。References: Thomas Lenormand, Denis Roze. A single theory for the evolution of sex chromosomes and the two rules of speciation.Science389,eado9032(2025).DOI:10.1126/science.ado9032

Audio
Featured in this Episode

No persons identified in this episode.

Transcription

No transcription available yet

Help us prioritize this episode for transcription by upvoting it.

0 upvotes
🗳️ Sign in to Upvote

Popular episodes get transcribed faster

Comments

There are no comments yet.

Please log in to write the first comment.