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.
出处
《中国水稻科学》
CAS
CSCD
北大核心
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)
关键词
分子标记辅助育种
杂交水稻
白叶枯病
抗病性
marker assisted selection
hybrid rice
bacterial blight
disease resistance
