Cytological analysis and genetic control of rice anther development  

作　　者：Dabing Zhang Xue Luo Lu Zhu 

机构地区：[1]Institute of Plant Science, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China [2]Bio-X Research Center, Shanghai Jiao Tong University, Shanghai 200240, China

出　　处：《Journal of Genetics and Genomics》2011年第9期379-390,共12页遗传学报（英文版）

基　　金：supported by the funds from the National Basic Research Program of China(Nos.2009CB941500 and 2007CB108700);the National Natural Science Foundation of China(No.30725022);the Chinese Transgenic Project(No. 2009ZX08009-108B);the National 863 High-Tech Project (No.2011AA10A101)

摘　　要：Microsporogenesis and male gametogenesis are essential for the alternating life cycle of flowering plants between diploid sporophyte and haploid gametophyte generations. Rice （Oryza sativa） is the world＇s major staple food, and manipulation of pollen fertility is particularly important for the demands to increase rice grain yield. Towards a better understanding of the mechanisms controlling rice male reproductive development, we describe here the cytological changes of anther development through 14 stages, including cell division, differentiation and degeneration of somatic tissues consisting of four concentric cell layers surrounding and supporting reproductive cells as they form mature pollen grains through meiosis and mitosis. Furthermore, we compare the morphological difference of anthers and pollen grains in both monocot rice and eudicot Arabidopsis thaliana. Additionally, we describe the key genes identified to date critical for rice anther development and pollen formation.Microsporogenesis and male gametogenesis are essential for the alternating life cycle of flowering plants between diploid sporophyte and haploid gametophyte generations. Rice （Oryza sativa） is the world＇s major staple food, and manipulation of pollen fertility is particularly important for the demands to increase rice grain yield. Towards a better understanding of the mechanisms controlling rice male reproductive development, we describe here the cytological changes of anther development through 14 stages, including cell division, differentiation and degeneration of somatic tissues consisting of four concentric cell layers surrounding and supporting reproductive cells as they form mature pollen grains through meiosis and mitosis. Furthermore, we compare the morphological difference of anthers and pollen grains in both monocot rice and eudicot Arabidopsis thaliana. Additionally, we describe the key genes identified to date critical for rice anther development and pollen formation.

关 键 词：Rice （Oryza Sativa） ANTHER Developmental stages Cellular morphology Arabidopsis thaliana 

分 类 号：S641.203[农业科学—蔬菜学] S511[农业科学—园艺学]