Molecular mapping of powdery mildew resistance gene in wheat cultivar Jimai 22

dc.creatorYin Gui-Hong
dc.creatorLi Gen-ying
dc.creatorHe Zhonghu
dc.creatorLiu Jian-Jun
dc.creatorWang Hui
dc.creatorXia Xian-chun
dc.date2013-06-07T21:12:30Z
dc.date2013-06-07T21:12:30Z
dc.date2009
dc.date.accessioned2023-07-17T19:56:55Z
dc.date.available2023-07-17T19:56:55Z
dc.identifier0496-3477
dc.identifierhttp://hdl.handle.net/10883/2735
dc.identifier10.3724/SP.J.1006.2009.01425
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7508937
dc.descriptionWheat powdery mildew, caused by Blumeria graminis f. sp. tritici, is one of the most important diseases of wheat (Triticum aestivum L.) worldwide. Breeding resistant wheat cultivars is the most economical and effective approach to control the disease. Jimai 22, a newly released wheat cultivar with high yield, broad adaptability, and good quality, is related to broad-sprectrum resistance to the isolates of B. graminis f. sp. tritici at both seedling and adult plant stages. To map the resistance gene of Jimai 22 on wheat chromosome, we used a highly virulent isolate E20 to screen the F2 plants and F2:3 lines derived from the cross of Jimai 22/Chinese Spring. Genetic analysis indicated that Jimai 22 carried a single dominant genefor resistance to powdery mildew, designated PmJM22 tentatively. Using bulked segregant analysis (BSA) with SSR and STS markers, PmJM22 was located to chromosome 2BL. Linkage analysis indicated that the resistance gene was linked to four SSR and five EST markers, with genetic distances from 7.7 (Xwmc149) to 31.3 cM (Xbarc101).Based on the origins, chromosome locations, and reaction patterns, PmJM22 is different from all the known powdery mildew resistance genes Pm6, Pm26, Pm33, and Mlzec1 on chromosome 2BL.
dc.description1425-1431
dc.formatPDF
dc.languageChinese
dc.publisherInstitute of Crop Sciences
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dc.rightsOpen Access
dc.source8
dc.source35
dc.sourceActa Agronomica Sinica
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectMolecular Markers
dc.subjectWHEAT
dc.subjectPOWDERY MILDEWS
dc.subjectGENETIC RESISTANCE
dc.subjectGENETIC MARKERS
dc.titleMolecular mapping of powdery mildew resistance gene in wheat cultivar Jimai 22
dc.typeArticle


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