数字农科院2.0

Identification Of Seedling Resistance Genes T.o Stripe Rust And A nalysis Of Adult Plant Resistance In 82 Wheat Cultivars From Gansu Province In China

文献类型： 外文期刊

作者： Shang Xunwu;Sun Zhenyu;Jin Shelin;Li Mingju;Sun Zhenyu;Zhang Bo;Zhang Bo;Wang Xiaoming;Xu Shichang;Cao Shiqin;Cao Shiqin;Cao Shiqin;Cao Shiqin;Feng Jing;Jia Qiuzhen;Jia Qiuzhen;Huang Jin;Huang Jin

作者机构：

关键词： Wheat cultivars; Stripe rust; Resistance genes; Gene postulation; Adult plant resistance

期刊名称： INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY

ISSN： 1560-8530

年卷期： 2017 年 19 卷 3.0 期

页码：

收录情况： SCI

摘要： Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive foliar diseases affecting wheat in China. The use of resistant cultivars is the most economical, environment friendly, and effective means to control stripe rust. By means of gene postulation and pedigree analysis, the resistant genes to stripe rust in eighty-two wheat cultivars from the Gansu province in China were identified in 30 wheat genotypes with the known Yr gene and 26 Pst pathotypes at the seedling stage under controlled greenhouse conditions in the Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPP CAAS), based on the gene-for-gene concept. The adult plant resistance of the 82 cultivars were tested at two locations in Longnan region of Gansu province during the growing seasons of 2009-2010, 2010-2011 and 2014-2015. The results showed that four resistant genes, including Yr9, Yr10, YrMor and Yr26, were postulated. The wheat cultivar Longyuan 992 may possess Yr9 and unknown gene(s). Five wheat cultivars, Longjian 385, Tianxuan 48, Tianxuan 51, Guinong 21 and Guinong 22, may possess Yr10+YrMor. Seven wheat cultivars, Lantian 24, Lantian 30, Lantian 091, Lantian 092, Zhongliang 29, 92R137, and 92R178 may possess Yr26. Other wheat cultivars may possess unknown gene(s). Eighteen cultivars were resistant in all stages. Fifty-six cultivars were resistant in the adult plant stage. Twenty-seven cultivars had slow-rusting characteristics. The cultivars that were resistant at all stages and the adult plant stage should be utilized widely. (C) 2017 Friends Science Publishers

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