Identification and molecular mapping of YrBm for adult plan resistance to stripe rust in Chinese wheat landrace Baimangmai
文献类型： 外文期刊
作者： Hu, Chaoyue 1 ; Wang, Fengtao 1 ; Feng, Jing 1 ; Sun, Cai 1 ; Guo, Jiyuan 1 ; Lang, Xiaowei 1 ; Hu, Jinghuang 2 ; Bai, Bin 4 ; Zhang, Wentao 4 ; Li, Hongjie 2 ; Lin, Ruiming 1 ; Xu, Shichang 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
3.Yangtze Univ, Coll Agr, Jingzhou 434025, Hubei, Peoples R China
4.Gansu Acad Agr Sci, Wheat Res Inst, Lanzhou 730070, Gansu, Peoples R China
5.Maotai Inst, Dept Resources & Environm, Zunyi 564507, Guizhou, Peoples R China
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.574； 五年影响因子：5.662 ）
ISSN： 0040-5752
年卷期： 2022 年 135 卷 8 期
页码：
收录情况： SCI
摘要： Key message A new adult plan resistance gene YrBm for potentially durable resistance to stripe rust was mapped on wheat chromosome arm 4BL in landrace Baimangmai. SSR markers closely flanking YrBm were developed and validated for use in marker-assisted selection. The wheat stripe rust pathogen Puccinia striiformis f. sp. tritici (Pst) frequently acquires new virulences and rapidly adapts to environmental stress. New virulences in Pst populations can cause previously resistant varieties to become susceptible. If those varieties were widely grown, consequent epidemics can lead to yield losses. Identification and deployment of genes for durable resistance are preferred method for disease control. The Chinese winter wheat landrace Baimangmai showed a high level of adult plant resistance (APR) to stripe rust in a germplasm evaluation trial at Langfang in Hebei province in 2006 and has continued to confer high resistance over the following 15 years in field nurseries in Hebei, Sichuan and Gansu. A recombinant inbred line population of 200 F-10 lines developed from a cross of Baimangmai and a susceptible genotype segregated for APR at a single locus on chromosome 4BL; the resistance allele was designated YrBm. Allelism tests of known Yr genes on chromosome 4B and unique closely flanking marker alleles Xgpw7272(189) and Xwmc652(164) among a panel of Chinese wheat varieties indicated that YrBm was located at a new locus. Moreover, those markers can be used for marker-assisted selection in breeding for stripe rust resistance.
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