中国水稻科学Issue(5)：467-474,8.DOI:10.3969/j.issn.1001-7216.2015.05.003
聚合Stv-bi和Wx-mq 基因改良武育粳3号条纹叶枯病抗性和食味品质
Improving Resistance to Rice Stripe Disease and Eating Quality of Wuyuj ing 3 by Pyramiding Stv-bi and Wx-mq
摘要
Abstract
The japonica rice variety Kantou 194 was used as the donor of the resistance gene Stv-bi and the low-amylose content gene Wx-mq to improve the resistance and eating quality of Wuyujing 3 by backcross.In continuous backcross and selfcross,molecular markers linked with Stv-bi and Wx-mq were utilized for genotypic detection in combination with resistance identification to rice stripe disease and agronomic trait selection.Finally,10 lines with homozygous genotype Stv-bi Stv-bi Wx-mqWx-mq were obtained from BC3 F4 generation.The results of comparative analysis indicated that with similar agronomic traits to the receptor parent Wuyujing 3,those lines had substantial improments in resistance,appearance and eating quality.By comprehensive evaluation,two excellent lines K01 and K04 were selected.关键词
水稻/条纹叶枯病/食味品质/Stv-bi基因/Wx-mq基因/聚合育种Key words
rice/rice stripe disease/eating quality/Stv-bi/Wx-mq/pyramiding breeding分类
农业科技引用本文复制引用
陈涛,赵春芳,王才林,吴昊,张亚东,朱镇,赵庆勇,周丽慧,姚姝,赵凌,于新..聚合Stv-bi和Wx-mq 基因改良武育粳3号条纹叶枯病抗性和食味品质[J].中国水稻科学,2015,(5):467-474,8.基金项目
现代农业产业技术体系建设专项基金资助项目(CARS-01-47) （CARS-01-47）
江苏省农业科技自主创新资金项目(CX[12]1003) （CX[12]1003）
江苏省科技支撑计划资助项目(BE2012303) （BE2012303）
