OsMYB103 is required for rice anther development by regulating tapetum development and exine formation

作     者：ZHANG Sen FANG ZiJun ZHU Jun GAO JuFang YANG ZhongNan 

作者机构：College of Life and Environment Sciences Shanghai Normal University Shanghai 200234 China 

出 版 物：《Chinese Science Bulletin》 (中国科学通报)

年 卷 期：2010年第55卷第29期

页      面：3288-3297页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by the National Natural Science Foundation of China (30671127 and 30971553) the National Basic Research Program of China (2007CB947600) 

主　　题：花药绒毡层 水稻 RNA干扰 转基因植株 同源基因 外壁 转录水平 序列相似性 

摘      要：The Arabidopsis AtMYB103 gene is required for anther development,but whether the homologous gene in rice has the same role is *** analysis indicated that the rice OsMYB103 gene shares a high sequence similarity with ***,we investigated the functional role of OsMYB103 in anther development using an RNAi *** OsMYB103 RNA transcript was expressed most abundantly in flowers,specifically in the tapetum,premeiotic pollen mother cells,and meiotic ***103-RNAi transgenic lines grew normally during their vegetative phase but displayed reduced male fertility,a phenotype that was associated with downregulated OsMYB103 transcript *** of OsMS2,an ortholog of the Arabidopsis AtMS2 gene,was also dramatically reduced in the transgenic *** of OsMYB103 led to defects in tapetum development,and most of the microspores in mature anthers lacked ***,OsMYB103 could partially rescue the male sterility phenotype of an AtMYB103 knockout mutant *** together,these results indicate that OsMYB103 does have an important role in rice tapetum and microspore development.