南方农业学报2011，Vol.42Issue(11)：1316-1319,4.
聚合回交法选育抗褐飞虱水稻恢复系
Breeding of resistance BPH restorer line using polymerization backcross
摘要
Abstract
[Objective]The present experiment was conducted to explore and apply resistance gene of rice brown plan-thopper (BPH, Nilaparvata lugens Stal) to breed rice restorer with resistance to BPH. [Method]Rice material HS204 with high resistance to BPH was used as a BPH resistance donor, and rice restorer Minghui65 was used as recurrent parent. Through polymerization and hackcross, the population identification of backcross offsprings at seedling stage and selection of agronomic traits at maturity were carried out. [ Result ]The result proved that the resistance gene of HS204 was dominant. Through polymerization and backcross, the dominant resistance gene of BPH was transferred successfully to recurrent parent. Among offspring of 11 backcross combinations, 4 homozygous restorers showed high combining ability and resistance to BPH. Among 4 combinations, M204-8-2-3-6-5 and M204-8-8-14-9-9 derived from strain M204-8, and their 7 new combinations showed resistance of over grade 3 and strong restoring ability. [Conclusion]The rice homozygous strains with targeted traits can be quickly bred using polymerization backcross and resistance screening, and the homozygous resistant strains backcross with the recurrent parent.关键词
水稻/聚合回交/抗褐飞虱/恢复系Key words
rice/ polymerization backcross/ resistance BPH/ restorer line分类
农业科技引用本文复制引用
郭辉,冯锐,秦学毅,张晓丽..聚合回交法选育抗褐飞虱水稻恢复系[J].南方农业学报,2011,42(11):1316-1319,4.基金项目
广西科技攻关项目(桂科攻0992016) （桂科攻0992016）
