植物次生生长相关MYB转录因子研究进展  

Research Advances in the Secondary Growth-associated MYB Transcription Factors in Plants

作　　者：薛英喜[1,2] 魏建华[2] 姜廷波[1] 王宏芝[2] 

机构地区：[1]东北林业大学林木遗传育种教育部重点实验室,黑龙江哈尔滨150040 [2]北京农业生物技术研究中心,北京100097

出　　处：《安徽农业科学》2012年第13期7650-7655,共6页Journal of Anhui Agricultural Sciences

基　　金：国家高技术研究发展计划(2011AA100201);国家重点基础研究发展计划(2012CB114501)

摘　　要：林木的次生木质部是重要的再生生物能源,在人类的生产生活中具有重要意义。作为植物中最大的转录因子家族之一,MYB转录因子在次生壁合成转录调控过程中发挥重要的作用。目前许多主要的次生壁合成相关MYB转录因子已被分离鉴定。AC顺式作用元件是MYB转录因子与木质素合成基因结合的重要元件。该研究综述了MYB转录因子结构及进化,介绍了转录激活因子与抑制因子如何调控次生壁的合成,并对MYB转录因子的转录后修饰、进化的保守性及其转录调控网络进行了阐述。Secondary xylem of trees is an important renewable resource and has great significance in human＇ s production and life. As one of the largest plant transcription factor families, MYB transcription factors play an important role in the transcriptional regulation of secondary cell wall biosynthesis. Till now many key secondary wall-associated MYB transcription factors have been identified and characterized. AC elements are important for MYB transcription factors binding to the promoters of lignin biosynthesis genes. In this article, we reviewed the structure and evolution of MYB transcription factors, and then introduced how transcriptional activators and repressors modulate secondary wall biosynthesis ; at last discussed the post-transcriptional modification, evolutionary conservation and transcriptional network of MYB transcription factors.

关 键 词：MYB转录因子 次生生长转录调控网络 AC顺式作用元件 转录后修饰 进化保守性 

分 类 号：S501[农业科学—作物学]