希斯甲基化调节了Drosophila melanogaster中的生殖性隔膜
Abigail DiVito Evans1,2, Regina A Fairbanks1,2, Paul Schmidt1
1Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
PLoS genetics
|September 13, 2023
概括
现型可塑性,即改变特征的能力,在果中受到表观遗传控制. 卵巢中的特定基因素标记影响生殖停止 (隔膜),显示表观遗传和基因型依赖的适应环境变化的机制.
科学领域:
- 发展生物学 发展生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 进化生物学 进化生物学
背景情况:
- 现型可塑性允许生物适应波动的环境.
- 适应性表型可塑性对生存至关重要,但其潜在的基因调节机制尚不清楚.
- 据推测,表观遗传因素可以调解环境依赖的表型可塑性.
研究的目的:
- 测试表观遗传因素是否调解环境依赖的表型可塑性.
- 为了研究特定的质子修饰在Drosophila melanogaster的隔膜可塑性中的作用.
主要方法:
- 采用了Drosophila melanogaster的一种具有高隔膜可塑性的内生菌系.
- 检查了至少三代人对隔膜症的表观遗传.
- 查了卵巢的表观遗传标记,并使用了卵巢特异性的基因组修饰剂.
主要成果:
- 隔膜性可塑性是通过表观遗传决定的,并且可以在几代人之间遗传.
- 活跃的基因素标记H3K4me3和H3K36me1在卵巢中被耗尽.
- H3K4me3和H3K36me1的耗尽促进了隔膜,这些表观遗传标记显示了基因型依赖的分歧.
结论:
- 表观遗传机制,特别是基因组修饰,是表型可塑性的关键决定因素.
- 隔离性可塑性是通过表观遗传调节的,可以跨世代传播.
- 塑性表观遗传决定因素可以是基因型依赖的,提供了关于在波动的环境中适应的见解.
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