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Genetic basis of resistance against powdery mildew in the wheat cultivar "Tabasco"

文献类型： 外文期刊

作者： Wu, Jizhong 1 ; Jia, Haiyan 2 ; Qiao, Linyi 2 ; Fu, Bisheng 1 ; Brown-Guedira, Gina 5 ; Nagarajan, Ragupathi 2 ; Yan, Liuling 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Nanjing 210014, Jiangsu, Peoples R China

2.Oklahoma State Univ, Dept Plant & Soil Sci, Stillwater, OK 74078 USA

3.Nanjing Agr Univ, Appl Plant Genom Lab, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China

4.Shanxi Agr Univ, Coll Agron, Shanxi Key Lab Crop Genet & Mol Improvement, Taiyuan 030031, Shanxi, Peoples R China

5.USDA ARS Plant Sci Res, Dept Crop & Soil Sci, North Carolina State Univ, Raleigh, NC 27695 USA

关键词： Pm48; Pm2; Powdery mildew; NCF-D-1-1; Wheat

期刊名称：MOLECULAR BREEDING （ 影响因子：3.1； 五年影响因子：3.1 ）

ISSN： 1380-3743

年卷期： 2023 年 43 卷 7 期

页码：

收录情况： SCI

摘要： European winter wheat cultivar "Tabasco" was reported to have resistance to powdery mildew disease caused by Blumeria graminis f. sp. tritici (Bgt) in China. In previous studies, Tabasco was reported to have the resistance gene designated as Pm48 on the short arm of chromosome 5D when a mapping population was phenotyped with pathogen isolate Bgt19 collected in China and was genotyped with simple sequence repeat (SSR) markers. In this study, single-nucleotide polymorphism (SNP) chips were used to rapidly determine the resistance gene by mapping a new F-2 population that was developed from Tabasco and a susceptible cultivar "Ningmaizi119" and inoculated with pathogen isolate NCF-D-1-1 that was collected in the USA. The segregation of resistance in the population was found to link with Pm2 which was identified in Tabasco. Therefore, it was concluded that the previously reported Pm48 on chromosome arm 5DS in Tabasco should be the Pm2 gene on the same chromosome. The Pm2 was also found in European cultivars "Mattis" and "Claire" but not in any of the accessions from diploid wheat Aegilops tauschii or modern cultivars such as "Gallagher," "Smith's Gold," and "OK Corral" being used in the Great Plains in the USA. A KASP marker was developed to track the resistance allele Pm2 in wheat breeding.

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