MYB类转录因子对花药和花粉发育的调控途径  

Pathways of MYB Transcription Factors Regulating Anther Development and Pollen Formation

作　　者：邓志刚 金樑[1] 李晶[1] 王文斌[1] 杨龙[1] 王晓娟[1] 

机构地区：[1]兰州大学草地农业生态系统国家重点实验室/草地农业科技学院,兰州730020

出　　处：《西北植物学报》2013年第4期850-856,共7页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家自然科学基金(31270558)

摘　　要：花药发育和花粉形成的各个步骤由众多基因控制,一些转录因子通过调控花药发育相关基因的表达,是功能性花粉形成的关键因子。MYB类转录因子作为植物中最大的转录因子家族,是其中非常重要的一类转录因子。该文结合近年来国内外有关被子植物花粉发育相关MYB转录因子在花药发育和花粉形成的调控途径,包括绒毡层发育、胼胝质的沉积和降解、光合产物的运输、花药的开裂以及雄配子体形成过程中所起的重要作用等方面的研究进展,重点对MYB类转录因子通过形成对绒毡层发育、同化物分配、苯丙烷物质代谢等相关靶位基因的控制网络,转录调控植物花粉发育和花药开裂过程等研究进行综述讨论。The processes of anther development and pollen formation are controlled hy series of genes and some transcription factors. As one of the largest families of transcriptional factors in plant, MYB plays an important role in such regulation processes. In this paper, we reviewed the domestic and foreign studies on anther development and pollen formation regulated by MYB in angiosperms in recent years. The regulatory pathways of these MYB transcription factors have been summarized,including the advances in the development of tapetum, deposition and degradation of the callose in anther,transportation photosynthetic product to the flower, dehiscence of the anther and so on. Furthermore, the regulatory network of MYB in the processes above through controlling the target genes for tapetum development, assimilate distribution and phenylpropanoid metabolism have been discussed, especially focused on the transcriptional regulation relat ed to pollen formation and anther dehiscence.

关 键 词：MYB 转录因子 花药 发育 转录调控 

分 类 号：Q789[生物学—分子生物学]