Epigenetic and developmental regulation in plant polyploids.

Epigenetic and developmental regulation in plant polyploids.
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植物多倍体中的表观遗传和发育调控。

DOI:
10.1016/j.pbi.2015.02.007
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发表时间:
2015-04
影响因子:
9.5
通讯作者:
Chen ZJ
Chen ZJ
中科院分区:
生物学2区
文献类型:
--
作者:
Song Q;Chen ZJ

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多倍体或全基因组复制发生在一些动物和许多开花植物中,包括许多重要作物,如小麦、棉花和油菜。植物界中多倍体的普遍存在表明它是植物物种形成和作物驯化的重要进化特征。对天然和合成多倍体的研究揭示了多倍体形成后基因组结构和基因表达的快速动态变化。越来越多的证据表明,表观遗传修饰可以改变同源基因表达并重新编程基因表达网络,从而使多倍体能够建立新的细胞型、蓬勃生长并适应当地环境。多倍体中的序列和基因表达变化已在其他地方得到充分记录和审查。本综述重点关注多倍体中的发育调控和表观遗传变化,包括 DNA 甲基化和组蛋白修饰。
Polyploidy or whole-genome duplication occurs in some animals and many flowering plants, including many important crops such as wheat, cotton and oilseed rape. The prevalence of polyploidy in the plant kingdom suggests it as an important evolutionary feature for plant speciation and crop domestication. Studies of natural and synthetic polyploids have revealed rapid and dynamic changes in genomic structure and gene expression after polyploid formation. Growing evidence suggests that epigenetic modifications can alter homoeologous gene expression and reprogram gene expression networks, which allows polyploids to establish new cytotypes, grow vigorously and adapt in local environments. Sequence and gene expression changes in polyploids have been well documented and reviewed elsewhere. This review is focused on developmental regulation and epigenetic changes including DNA methylation and histone modifications in polyploids.
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发表时间: 2001-07-15
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