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作物学报 ›› 2013, Vol. 39 ›› Issue (08): 1331-1338.doi: 10.3724/SP.J.1006.2013.01331

• 综述 •    下一篇

植物多倍化过程中小分子RNA调控基因表达机制研究进展

赵旭博,李爱丽,毛龙*   

  1. 中国农业科学院作物科学研究所,北京 100081
  • 收稿日期:2013-03-19 修回日期:2013-04-22 出版日期:2013-08-12 网络出版日期:2013-05-20
  • 通讯作者: 毛龙, E-mail: maolong@caas.cn
  • 基金资助:

    本研究由国家转基因生物新品种培育重大专项(2013ZX08009001)资助。

Progress on Gene Regulatory Mechanisms by Small RNAs during Plant Polyploidization

ZHAO Xu-Bo,LI Ai-Li,MAO Long*   

  1. Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
  • Received:2013-03-19 Revised:2013-04-22 Published:2013-08-12 Published online:2013-05-20
  • Contact: 毛龙, E-mail: maolong@caas.cn

摘要:

多倍体在植物界中广泛存在,因其往往具有显著超出双亲的生长优势和适应性而成为植物学研究的热点之一。越来越多的研究表明小分子RNA介导的基因激活或沉默及染色质修饰在植物多倍化过程中的基因表达调控方面发挥重要作用。本文结合本实验室在小麦多倍化研究中的观察,着重综述近几年来小分子RNA层面的植物多倍化过程中基因表达调控的机制,以期对多倍体作物的研究和利用提供有益的借鉴。

关键词: miRNA, siRNA, 多倍体, 表观修饰

Abstract:

Polyploidization is an important mechanism during plant evolution and polyploids are prevalent in the plant kingdom. Compared with their parents, polyploids often have strong growth vigor. Thus, how genes from different species are regulated in polyploid plants is a research area of great interest. Recently, small RNAs were found to be involved in re-establishing gene expression balance during plant polyploidization. In this paper, we presented an up to date overview on cis- and trans-gene regulatory mechanism in plant polyploidization that is mediated by small RNAs, especially by miRNAs and siRNAs. We also provided opinions on future directions in polyploid crop research.

Key words: miRNA, siRNA, Polyploidization, Epigenetic modification

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