MYB转录因子在水稻抗逆基因工程中的研究进展

Research progress of MYB transcription factor in stress-resistant genetic engineering of rice

干旱、寒冷、高盐以及病虫害胁迫是造成水稻减产的重要因素。近年来,植物特异性转录因子在水稻抗旱、抗寒、抗盐以及抗病虫害胁迫机制上扮演着重要角色。MYB转录因子是植物最大的转录因子家族之一,其结构高度保守,常见1R-MYB/MYB-related、R2R3-MYB、3R-MYB以及4R-MYB 4种结构类型。MYB转录因子主要参与植物生长发育、生物以及非生物胁迫的应答过程。本文就MYB转录因子的结构特征、分类以及在水稻(Oryza sativa)生物及非生物胁迫中的应答进行综述,为MYB转录因子的研究及植物抗逆新品种培育提供参考。

Stresses from drought,cold,high salinity,diseases and pests are important factors leading to the reduction of rice yield.In recent years,plant-specific transcription factors played important roles in the mechanisms of drought resistance,cold resistance,salt resistance,diseases resistance and pests resistance of rice.MYB transcription factors family was one of the largest transcription factors families in plants.It was highly conserved in domains,and four kinds of common structure types were 1R-MYB/MYB-related,R2R3-MYB,3R-MYB and 4R-MYB.MYB transcription factors mainly involved in the growth and development of plants,response processes under biological and abiotic stresses.This paper summarized the structural characteristics and classification of MYB transcription factors as well as their responses to biological and abiotic stresses in Oryza sativa to provide reference for the research on MYB transcription factors and the cultivation of new plant varieties against stresses.