Bridging the transgenerational gap with epigenetic memory.

Bridging the transgenerational gap with epigenetic memory.
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DOI:
10.1016/j.tig.2012.12.008
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发表时间:
2013-03
期刊:
影响因子:
11.4
通讯作者:
Brunet, Anne
Brunet, Anne
中科院分区:
生物学1区
文献类型:
--
作者:
Lim, Jana P.;Brunet, Anne

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教科书上的知识是,性状的遗传受遗传学控制,生物体获得的表观遗传修饰会在代际之间重置。然而,最近,跨代表观遗传已成为一个快速增长的领域,提供的证据表明,一些表观遗传变化可能会导致跨代持续的表型。在这里,我们调查了一些最近的例子,跨代表观遗传的动物,从C。elegans到人类,并描述了研究这种现象的方法和局限性。我们还回顾了目前的证据表明,染色质修饰和RNA分子的机制,这种非传统的遗传模式,并讨论其进化的影响。
It is textbook knowledge that inheritance of traits is governed by genetics, and that the epigenetic modifications an organism acquires are reset between generations. Recently, however, transgenerational epigenetic inheritance has emerged as a rapidly growing field, providing evidence suggesting that some epigenetic changes may result in persistent phenotypes across generations. Here, we survey some of the most recent examples of transgenerational epigenetic inheritance in animals, ranging from C. elegans to humans, and describe approaches and limitations to studying this phenomenon. We also review the current body of evidence implicating chromatin modifications and RNA molecules in mechanisms underlying this unconventional mode of inheritance and discuss its evolutionary implications.
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