Lr72 confers resistance to leaf rust in durum wheat cultivar Atil C2000

dc.creatorHerrera-Foessel, S.A.
dc.creatorHuerta-Espino, J.
dc.creatorCalvo-Salazar, V.
dc.creatorLan, C.X
dc.creatorSingh, R.P.
dc.date2019-01-11T20:48:50Z
dc.date2019-01-11T20:48:50Z
dc.date2014
dc.date.accessioned2023-07-17T20:03:21Z
dc.date.available2023-07-17T20:03:21Z
dc.identifier0031-949X
dc.identifier1943-7684
dc.identifierhttps://hdl.handle.net/10883/19767
dc.identifier10.1094/PDIS-07-13-0741-RE
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7511642
dc.descriptionLeaf rust, caused by Puccinia triticina (Pt), has become a globally important disease for durum wheat (Triticum turgidum subsp. durum) since the detection of race group BBG/BN, which renders ineffective a widely deployed seedling resistance gene present in several popular cultivars including Mexican cultivars Altar C84 and Atil C2000. The resistance gene continues to play a key role in protecting durum wheat against bread wheat–predominant races since virulence among this race group has not been found. We developed F3 and F5mapping populations from a cross between Atil C2000 and the susceptible line Atred #1. Resistance was characterized by greenhouse seedling tests using three Pt races. Segregation tests indicated the presence of a single gene, which was mapped to the distal end of 7BS by bulk segregant analysis. The closest marker, wmc606, was located 5.5 cM proximal to the gene. No known leaf rust resistance genes are reported in this region; this gene was therefore designated as Lr72. The presence of Lr72 was further investigated in greenhouse tests in a collection of durum wheat using 13 Pt races. It was concluded that at least one additional gene protects durum wheat from bread wheat–predominant Ptraces.
dc.description631-635
dc.formatPDF
dc.languageEnglish
dc.publisherAmerican Phytopathological Society (APS)
dc.relationhttps://apsjournals.apsnet.org/doi/suppl/10.1094/PDIS-07-13-0741-RE
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.source5
dc.source98
dc.sourcePlant Disease
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectDurum Wheat
dc.subjectBBG/BN
dc.subjectSegregation Tests
dc.subjectHARD WHEAT
dc.subjectRUSTS
dc.subjectPUCCINIA RECONDITA
dc.subjectSCREENING
dc.subjectGENETIC RESISTANCE
dc.titleLr72 confers resistance to leaf rust in durum wheat cultivar Atil C2000
dc.typeArticle
dc.coverageMexico
dc.coverageUnited States


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