Genome-Wide Association Mapping of Adult-Plant Resistance to Stripe Rust in Common Wheat (Triticum aestivum)
文献类型： 外文期刊
作者： Yang, Fangping 1 ; Liu, Jindong 2 ; Guo, Ying 1 ; He, Zhonghu 3 ; Rasheed, Awais 3 ; Wu, Ling 4 ; Cao, Shiqin 5 ; Nan, Ha 1 ;
作者机构： 1.Gansu Acad Agr Sci, Wheat Res Inst, Lanzhou 730070, Gansu, Peoples R China
2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen 518120, Guangdong, Peoples R China
3.Chinese Acad Agr Sci CAAS, Natl Wheat Improvement Ctr, Inst Crop Sci, Beijing 100081, Peoples R China
4.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Sichuan, Peoples R China
5.Gansu Acad Agr Sci, Inst Plant Protect, Lanzhou 730070, Gansu, Peoples R China
6.Tianshui Inst Agr Sci, Tianshui 741200, Gansu, Peoples R China
关键词： 90K SNP array; GWAS; marker-trait association; Puccinia striiformis f. sp. tritici; wheat
期刊名称：PLANT DISEASE （ 影响因子：4.438； 五年影响因子：4.7 ）
ISSN： 0191-2917
年卷期： 2020 年 104 卷 8 期
页码：
收录情况： SCI
摘要： Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a globally devastating disease of common wheat (Triticum aestivum L.), resulting in substantial economic losses. To identify effective resistance genes, a genome-wide association study was conducted on 120 common wheat lines from different wheat-growing regions of China using the wheat 90K iSelect SNP array. Seventeen loci were identified, explaining 9.5 to 21.8% of the phenotypic variation. Most of these genes were detected in the A (seven) and B (seven) genomes, with only three in the D genome. Among them, 11 loci were colocated with known resistance genes or quantitative trait loci reported previously, whereas the other six are likely new resistance loci. Annotation of flanking sequences of significantly associated SNPs indicated the presence of three important candidate genes, including E3 ubiquitin-protein ligase, F-box repeat protein, and disease resistance RPP13-like protein. This study increased our knowledge in understanding the genetic architecture for stripe rust resistance and identified wheat varieties with multiple resistance alleles, which are useful for improvement of stripe rust resistance in breeding.
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