抗白叶枯病杂交水稻的分子标记辅助育种  

Hybrid Rice Resistant to Bacterial Blight Developed by Marker Assisted Selection

作　　者：曹立勇[1] 庄杰云[1] 占小登[1] 郑康乐[1] 程式华[1] 

机构地区：[1]中国水稻研究所国家水稻改良中心,农业部水稻生物学重点实验室,浙江杭州310006

出　　处：《中国水稻科学》2003年第2期184-186,共3页Chinese Journal of Rice Science

基　　金：浙江省重点科技项目 ( 0 10 0 0 70 15 ) ;国家 863计划资助项目 ( 2 0 0 1AA2 110 81)

摘　　要：应用分子标记辅助回交 ,育成了带广谱抗白叶枯病基因 Xa- 2 1的两个杂交水稻恢复系 R80 0 6和 R1176 ,所配的杂交水稻组合中优 6号、中优 1176在中国南方稻区及多个省级区试中表现抗病、优质、高产 ,具有较广的商业开发潜力。Through recurrent backcrossing in combination with molecular marker assisted selection (MAS), restorer lines R8006 and R1176 carrying Xa 21, a gene having broad spectrum resistance to bacterial blight, were selected. By crossing the two lines to CMS line Zhong 9A, two new hybrid rice combinations, Zhongyou 6 and Zhongyou 1176 were developed. The hybrids showed high resistance to diseases, good grain quality and high yielding potential in national and provincial adaptability and yield trials.

关 键 词：分子标记辅助育种 杂交水稻 白叶枯病 抗病性 

分 类 号：S511[农业科学—作物学]