生物
苗木
基因座(遗传学)
农学
抗性(生态学)
条锈病
Rust(编程语言)
人口
全基因组关联研究
基因型
数量性状位点
栽培
植物抗病性
基因
遗传学
单核苷酸多态性
社会学
人口学
程序设计语言
计算机科学
作者
May Tene,Elina Adhikari,Nicolás Cobo,Katherine Jordan,Oadi Matny,Isabel A. del Blanco,Jonathan Roter,Smadar Ezrati,Liubov Govta,J. Manisterski,Pnina Ben Yehuda,Xianming Chen,Brian J. Steffenson,Eduard Akhunov,Hanan Sela
出处
期刊:Crops
[MDPI AG]
日期:2022-03-02
卷期号:2 (1): 42-61
被引量:7
摘要
Stripe rust is a devastating disease in wheat that causes substantial yield loss around the world. The most effective strategy for mitigating yield loss is to develop resistant cultivars. The wild relatives of wheat are good sources of resistance to fungal pathogens. Here, we used a genome-wide association study (GWAS) to identify loci associated with stripe rust (causal agent: Puccinia striiformis f. sp. tritici) resistance in wild emmer (Triticum dicoccoides) at the seedling stage, in the greenhouse, and at the adult plant stage, in the field. We found that the two major loci contributing to resistance in our wild emmer panel were the previously cloned seedling-stage resistance gene, Yr15, and the adult-plant-stage resistance gene, Yr36. Nevertheless, we detected 12 additional minor QTLs that additionally contribute to adult plant resistance and mapped a locus on chromosome 3AS that tentatively harbors a novel seedling resistance gene. The genotype and phenotype data generated for the wild emmer panel, together with the detected SNPs associated with resistance to stripe rust, provide a valuable resource for disease-resistance breeding in durum and bread wheat.
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