摘要
采用不同质源不育系及其保持系通过NCⅡ双列杂交,最大化实现不同类型不育系核质互补,建立不同质源不育系杂交群,获得不同质源间核质互作新的中间型重组不育材料。再对这些不育材料迚行育性和抗性鉴定,幵与其亲本不育系的主要优势性状迚行对比,同时通过对测配杂交组合的产量潜力、抗病性和品质鉴定,选育出优势性状重组的中间型目标不育系10仹和优势明显的重组不育系杂交水稻新组合12仹。研究表明,该重组选育技术可加快水稻三系不育系选育及其杂交组合选配的迚程。
Based on the NCⅡ diallel crossing model, different cytoplasmic types of CMS lines and their maintainer lines were used to make crosses to establish the crossing groups of different cytoplasms and develop new intermediate-type recombinant CMS lines with maximized complementation between nucleus and cytoplasm.After identification of the intermediate-type recombinant CMS lines in sterility and blast resistance and comparison with their parental CMS lines in advantageous traits, combined with the identification of their F1 hybrids in yield potential, disease resistance and grain quality, ten recombinant CMS lines with targeted advantageous traits and 12 heterotic hybrids of these recombinant CMS lines were obained. It has been found that the recombining methdology can accelerate the breeding process of CMS lines and their heterotic F1 hybrids in rice.
作者
吕直文
严明建
雷树凡
黄成志
胡景涛
刘忠贤
黄明贤
HU Jing-tao;LIU Zhong-xian;HUANG Ming-xian(Chongqing Three Gorges Academy of Agricultural Sciences, Wanzhou, Chongqing 404155, China;Longsha District Town Agricultural Service Center, Wanzhou, Chongqing 404005, China)
出处
《杂交水稻》
CSCD
北大核心
2018年第3期5-9,共5页
Hybrid Rice
基金
重庆市社会民生科技创新专项(cstc2016shmszx80091)
关键词
杂交水稻
三系不育系
优势性状重组
选育
hybrid rice
CMS line
recombination of advantagous traits
breeding
