中国农业科学2012，Vol.45Issue(24)：5013-5023,11.DOI:10.3864/j.issn.0578-1752.2012.24.006
1980份小麦地方品种和国外种质抗条锈性鉴定与评价
Identification and Evaluation of Resistance to Stripe Rust in 1980 Wheat Landraces and Abroad Germplasm
摘要
Abstract
[Objective] The objective of this study is to search new resistance sources and build evaluation system, and to provide a theological basis for breeding for disease resistance stripe rust of wheat. [Method] A total of 1 980 wheat landraces and foreign germplasms, which had not been widely used in China, were evaluated for resistance to stripe rust at seedling stage in greenhouse with 4 races of Puccinia triticina, and on adult plants under field conditions in Yangling and Tianshui, respectively, during 2008-2011. The selected resistant sources were detected with the known DNA markers linked to rust resistance genes Yr5, Yr9, Yr10, Yrl5, Yrl8 and Yr26. [Result] A selection of 50 resistant entries were screened in both artificial nursery with mixed races at Yangling and natural nursery at Tianshui, including 8 entries which had seedling resistance and 42 entries which had adult plant resistance. Combined with the resistance spectra and the detection of Yr gene markers, 6 entries possibly carried Yr9, 2 entries possibly carried Yr10, 21 entries possibly carried Yrl8 in the resistant 50 entries. There was no indication of Yr5, Yrl5 and Yr26 in any selected resistant entries. Six materials including Pindong34 and Qingchun39 displayed high or very high levels of resistance, which might carry uncharacterised and full compatibility at the seedling stage the new rust resistance Yr. [Conclusion] An effective method was established for identification and evolution of resistance to stripe rust, and 50 wheat germplasms were searched out with polygenic resistant characters. These resistant sources can be used in wheat breeding program for resistance to the disease.关键词
小麦/小麦条锈病/抗病种质/基因检测Key words
wheat/ wheat stripe rust/ resistant germplasm/ gene detection引用本文复制引用
韩德俊,张培禹,王琪琳,曾庆东,吴建辉,周新力,王晓杰,黄丽丽,康振生..1980份小麦地方品种和国外种质抗条锈性鉴定与评价[J].中国农业科学,2012,45(24):5013-5023,11.基金项目
国家公益性行业(农业)计划项目(200903035-02)、国家现代农业产业技术体系建设专项(CARS-3-1-11)、高等学校学科创新引智计划资助项目(B07049) （农业）
