Seedling and adult plant resistance to powdery mildew in Chinese bread wheat cultivars and lines

dc.creatorWang, Z.L.
dc.creatorLi, L.H.
dc.creatorHe Zhonghu
dc.creatorDuan, X.Y.
dc.creatorZhou, Y.L.
dc.creatorChen, X.M.
dc.creatorLillemo, M.
dc.creatorSingh, R.P.
dc.creatorWang, H.
dc.creatorXia, X.C.
dc.date2013-06-07T21:11:43Z
dc.date2013-06-07T21:11:43Z
dc.date2005
dc.date.accessioned2023-07-17T19:56:43Z
dc.date.available2023-07-17T19:56:43Z
dc.identifier0191-2917
dc.identifier1943-7692
dc.identifierhttp://hdl.handle.net/10883/2423
dc.identifier10.1094/PD-89-0457
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7508868
dc.descriptionPowdery mildew, caused by Blumeria graminis f. sp. tritici, is a widespread wheat disease in China. Identification of race-specific genes and adult plant resistance (APR) is of major importance in breeding for an efficient genetic control strategy. The objectives of this study were to (i) identify genes that confer seedling resistance to powdery mildew in Chinese bread wheat cultivars and introductions used by breeding programs in China and (ii) evaluate their APR in the field. The results showed that (i) 98 of 192 tested wheat cultivars and lines appear to have one or more resistance genes to powdery mildew; (ii) Pm8 and Pm4b are the most common resistance genes in Chinese wheat cultivars, whereas Pm8 and Pm3d are present most frequently in wheat cultivars introduced from CIMMYT, the United States, and European countries; (iii) genotypes carrying Pm1, Pm3e, Pm5, and Pm7 were susceptible, whereas those carrying Pm12, Pm16, and Pm20 were highly resistant to almost all isolates of B. graminis f. sp. tritici tested; and (iv) 22 genotypes expressed APR. Our data showed that the area under the disease progress curve, maximum disease severity on the penultimate leaf, and the disease index are good indicators of the degree of APR in the field. It may be a good choice to combine major resistance genes and APR genes in wheat breeding to obtain effective resistance to powdery mildew.
dc.description457-463
dc.formatPDF
dc.languageEnglish
dc.publisherAmerican Phytopathological Society (APS)
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
dc.rightsOpen Access
dc.source89
dc.sourcePlant Disease
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectWHEAT
dc.subjectSEEDLINGS
dc.subjectDISEASE RESISTANCE
dc.subjectPOWDERY MILDEWS
dc.subjectPLANT BREEDING
dc.subjectINBRED LINES
dc.titleSeedling and adult plant resistance to powdery mildew in Chinese bread wheat cultivars and lines
dc.typeArticle
dc.coverageChina


Este ítem pertenece a la siguiente institución