父母的辩证法:胚乳中的表观遗传对话。

IF 8.3 2区 生物学 Q1 PLANT SCIENCES Current opinion in plant biology Pub Date : 2024-06-29 DOI:10.1016/j.pbi.2024.102591
Souraya Khouider , Mary Gehring
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引用次数: 0

摘要

胚乳是有花植物的一大进化创新,它的正常发育对种子的生长和存活率有着至关重要的影响。表观遗传调控因子在亲本控制胚乳发育方面具有关键作用。值得注意的是,亲本基因组剂量的表观遗传调控是种子发育成功与否的主要决定因素,破坏这种平衡会产生不能存活的种子,正如在一些杂交和种间杂交中观察到的那样。这些合子后繁殖障碍也是物种分化的强大驱动力。有人认为,胚乳发育的分子机制和调控结构是在亲本冲突下进化而来的。在这篇综述中,我们强调亲本冲突是一种辩证冲突,并讨论了最近关于在胚乳中介导亲本冲突的表观遗传分子机制的发现。
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Parental dialectic: Epigenetic conversations in endosperm

Endosperm is a major evolutionary innovation of flowering plants, and its proper development critically impacts seed growth and viability. Epigenetic regulators have a key function in parental control of endosperm development. Notably, epigenetic regulation of parental genome dosage is a major determinant of seed development success, and disruption of this balance can produce inviable seed, as observed in some interploidy and interspecific crosses. These postzygotic reproduction barriers are also a potent driver of speciation. The molecular machinery and regulatory architecture governing endosperm development is proposed to have evolved under parental conflict. In this review, we emphasize parental conflict as a dialectic conflict and discuss recent findings about the epigenetic molecular machinery that mediates parental conflict in the endosperm.

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来源期刊
Current opinion in plant biology
Current opinion in plant biology 生物-植物科学
CiteScore
16.30
自引率
3.20%
发文量
131
审稿时长
6-12 weeks
期刊介绍: Current Opinion in Plant Biology builds on Elsevier's reputation for excellence in scientific publishing and long-standing commitment to communicating high quality reproducible research. It is part of the Current Opinion and Research (CO+RE) suite of journals. All CO+RE journals leverage the Current Opinion legacy - of editorial excellence, high-impact, and global reach - to ensure they are a widely read resource that is integral to scientists' workflow.
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