杂交水稻抗性育种策略探讨

S511.034; 文章介绍了水稻稻瘟病、白叶枯病、稻飞虱和螟虫等主要病虫害的抗性遗传和育种进展,探讨了当前广西杂交水稻病虫害抗性育种策略.抗稻瘟病育种强调新抗源的发掘、抗性基因的聚合及长期的病区自然诱发筛选;抗白叶枯病育种强调Xa23基因的利用;抗稻飞虱育种要利用bph14、bph15和bph18等新鉴定的抗性基因,后代选择以分子标记和抗性鉴定相结合;抗螟虫育种以转基因材料为供体,开展转基因抗虫水稻的杂交转育....

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Bibliographic Details
Published in南方农业学报 Vol. 42; no. 5; pp. 475 - 478
Main Author 陈彩虹 粟学俊 梁曼玲
Format Journal Article
LanguageChinese
Published 广西作物遗传改良生物技术重点开放实验室%广西农业科学院水稻研究所,南宁,530007 2011
Subjects
杂交水稻
病虫害抗性
策略
育种
策略
病虫害抗性
育种
杂交水稻
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ISSN2095-1191
DOI10.3969/j.issn.2095-1191.2011.05.004

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Summary:S511.034; 文章介绍了水稻稻瘟病、白叶枯病、稻飞虱和螟虫等主要病虫害的抗性遗传和育种进展,探讨了当前广西杂交水稻病虫害抗性育种策略.抗稻瘟病育种强调新抗源的发掘、抗性基因的聚合及长期的病区自然诱发筛选;抗白叶枯病育种强调Xa23基因的利用;抗稻飞虱育种要利用bph14、bph15和bph18等新鉴定的抗性基因,后代选择以分子标记和抗性鉴定相结合;抗螟虫育种以转基因材料为供体,开展转基因抗虫水稻的杂交转育.
Bibliography:45-1381/S
Hybrid rice; resistance to disease and insects; breeding; strategy
CHEN Cai-hong , SU Xue-jun, LIANG Man-ling （1 Guangxi Crop Genetic Improvement and Biotechnology Lab; 2 Rice Research Institute, Guangxi Academy of Agricultural Sciences： Nanning 530007, China）
This paper discusses about the progress made in breeding efforts for developing rice varieties resistance to various diseases and insect pests such as rice blast, bacterial blight, rice plant hopper, stem borer, etc., and breeding strategies applied for the purpose. The breeding for resistance to rice blast included the exploration of resistant germplasm resources, identification and isolation of resistance genes and their pyramiding, and natural selection of clones from long term disease affected. The utilization of Xa23 gene for breeding rice varieties with resistance to bacterial blight disease and utilization of newly discovered genes, viz., bph14, bph15 and bph18, etc., for plant hopper resistance of Guangxi, have been proposed. This paper a
ISSN:2095-1191
DOI:10.3969/j.issn.2095-1191.2011.05.004