Identification and Gene Mapping of a multi-floret spikelet 1 (mfs1) Mutant Associated with Spikelet Development in Rice

作     者：REN De-yong LI Yun-feng WANG Zeng XU Fang-fang GUO Shuang ZHAO Fang-ming SANG Xian-chun LING Ying-hua HE Guang-hua REN De-yong;LI Yun-feng;WANG Zeng;XU Fang-fang;GUO Shuang;ZHAO Fang-ming;SANG Xian-chun;LING Ying-hua;HE Guang-hua

作者机构：Key Laboratroy of Application and Safety Control of Genetically Modified Crops Rice Research Institute Southwest University 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2012年第11卷第10期

页      面：1574-1579页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by funds from the National Natural Science Foundation of China (31071071) the Major Research Projects of Chongqing, China (CSTC, 2010AA1013) the Doctor Foundation of Southwest University, China(SWU110017) the Fundamental Research Funds for the Central Universities, China (XDJK2010C073) 

主　　题：empty glume gene mapping mfsl mutant rice (Oryza sativa L.) spikelet 

摘      要：In this study, a rice spikelet mutant, multi-floret spikelet 1 （mfsl）, which was derived from ethylmethane sulfonate （EMS）- treated Jinhui 10 （Oryza sativa L. ssp. indica） exhibited pleiotropic defects in spikelet development. The mfsl spikelet displayed degenerated the empty glume, elongated the rachilla, the extra lemma-like organ and degraded the palea. Additionally, mfsl flowers produced varied numbers of inner floral organs. The genetic analysis revealed that the mutational trait was controlled by a single recessive gene. With 401 recessive individuals from the F2 segregation population, the MFS1 gene was finally mapped on chromosome 5, an approximate 350 kb region. The present study will be useful for cloning and functional analysis of MFS1, which would facilitate understanding of the molecular mechanism involved in spikelet development in rice.