植物多倍化过程中小分子RNA调控基因表达机制研究进展-作物学报.PDF

作物学报 ACTA AGRONOMICA SINICA 2013, 39(8): 1331−1338 /zwxb/ ISSN 0496-3490; CODEN TSHPA9 E-mail: xbzw@ DOI: 10.3724/SP.J.1006.2013.01331 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* , 100081 : , , RNA , RNA , : miRNA; siRNA; ; Progress on Gene Regulatory Mechanisms by Small RNAs during Plant Poly- ploidization * ZHAO Xu-Bo, LI Ai-Li, and MAO Long Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China 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 ex- pression balance during plant polyploidization. In this paper, we presented an up to date overview on cis- and trans-gene regula- tory mechanism in plant polyploidization that is mediated by small RNAs, especially miRNAs and siRNAs. We also provided opinions on future research directions for polyploid crops. Keywords: miRNA; siRNA; Polyploidization; Epigenetic modification (polyploidization) , [1-2] (polyploid) , , (autopolyploid) RNA (allopolyploid) , [1,10-12] [3] , , , RNA , [4-7] , ,