Epigenetic regulation of germ cells-remember or forget?

Epigenetic regulation of germ cells-remember or forget?
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DOI:
10.1016/j.gde.2015.04.003
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发表时间:
2015-04
影响因子:
4
通讯作者:
Chen, Xin
Chen, Xin
中科院分区:
生物学2区
文献类型:
--
作者:
Feng, Lijuan;Chen, Xin

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与体细胞不同,生殖细胞保留了在受精后繁殖整个新生物体的潜力。为了完成受精过程,生殖细胞经历称为配子发生的极端细胞分化过程,以产生形态和功能不同的卵母细胞和精子。除了从二倍体到单倍体的遗传内容变化之外,在不改变初级DNA序列的情况下修改染色质状态的表观遗传机制对生殖细胞分化以及跨代效应具有深远的影响。本文就后生动物生殖细胞分化和跨代遗传的表观遗传调控进行综述。
Unlike somatic cells, germ cells retain the potential to reproduce an entire new organism upon fertilization. In order to accomplish the process of fertilization, germ cells undergo an extreme cellular differentiation process known as gametogenesis in order to produce morphologically and functionally distinct oocyte and sperm. In addition to changes in genetic content changes from diploid to haploid, epigenetic mechanisms that modify chromatin state without altering primary DNA sequences have profound influence on germ cell differentiation and moreover, the transgenerational effect. In this review, we will go over the most recent discoveries on epigenetic regulations in germline differentiation and transgenerational inheritance across different metazoan species.
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