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dc.contributorSingh, Gurminderen_US
dc.contributorPeters Haugrud, Amandaen_US
dc.contributorRunning, Katherineen_US
dc.contributorSeneviratne, Sudeshien_US
dc.contributorZhang, Zengcuien_US
dc.contributorShi, Gongjunen_US
dc.contributorBassi, Filippoen_US
dc.contributorMaccaferri, Marcoen_US
dc.contributorCattivelli, Luigien_US
dc.contributorTuberosa, Robertoen_US
dc.contributorFriesen, Timothy Len_US
dc.contributorLiu, Zhaohuien_US
dc.contributorXu, Stevenen_US
dc.contributorFaris, Justinen_US
dc.creatorSzabo-Hever, Agnesen_US
dc.identifier.citationAgnes Szabo-Hever, Gurminder Singh, Amanda Peters Haugrud, Katherine Running, Sudeshi Seneviratne, Zengcui Zhang, Gongjun Shi, Filippo Bassi, Marco Maccaferri, Luigi Cattivelli, Roberto Tuberosa, Timothy L Friesen, Zhaohui Liu, Steven Xu, Justin Faris. (18/5/2023). Association mapping of resistance to tan spot in the Global Durum Panel. Phytopathology.en_US
dc.description.abstractTan spot, caused by the necrotrophic fungal pathogen Pyrenophora tritici-repentis (Ptr), is an important disease of durum and common wheat worldwide. Compared to common wheat, less is known about the genetics and molecular basis of tan spot resistance in durum wheat. We evaluated 510 durum lines from the Global Durum wheat Panel (GDP) for sensitivity to the necrotrophic effectors (NEs) Ptr ToxA and Ptr ToxB, and for reaction to Ptr isolates representing races 1–5. Overall, susceptible durum lines were most prevalent in South Asia, the Middle East, and North Africa. Genome-wide association analysis showed the resistance locus Tsr7 was significantly associated with tan spot caused by races 2 and 3, but not races 1, 4, or 5. The NE sensitivity genes Tsc1 and Tsc2 were associated with susceptibility to Ptr ToxC- and Ptr ToxB-producing isolates, respectively, but Tsn1 was not associated with tan spot caused by Ptr ToxA-producing isolates, which further validates that the Tsn1-Ptr ToxA interaction does not play a significant role in tan spot development in durum. A unique locus on chromosome arm 2AS was associated with tan spot caused by race 4, a race once considered avirulent. A novel trait characterized by expanding chlorosis leading to increased disease severity caused by the Ptr ToxB-producing race 5 isolate DW5 was identified, and this trait was governed by a locus on chromosome 5B. We recommend that durum breeders select resistance alleles at the Tsr7, Tsc1, Tsc2, and the chromosome 2AS loci to obtain broad resistance to tan spot.en_US
dc.publisherAmerican Phytopathological Societyen_US
dc.subjectfungal pathogensen_US
dc.subjecthost parasite interactionsen_US
dc.titleAssociation mapping of resistance to tan spot in the Global Durum Panelen_US
dc.typeJournal Articleen_US
cg.creator.idBassi, Filippo: 0000-0002-1164-5598en_US
cg.subject.agrovocdisease resistanceen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUnited States Department of Agriculture, Agricultural Research Service - USDA-ARSen_US
cg.contributor.centerNorth Dakota State University - NDSUen_US
cg.contributor.centerUniversity of Bologna - UNIBOen_US
cg.contributor.centerConsiglio per la Ricerca e la Sperimentazione in Agricoltura / Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - CRA / CREAen_US
cg.contributor.crpGenetic Innovation - GIen_US
cg.contributor.funderNot Applicableen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.subject.sdgSDG 1 - No povertyen_US
cg.subject.sdgSDG 2 - Zero hungeren_US
cg.subject.actionAreaGenetic Innovationen_US
cg.subject.impactAreaClimate adaptation and mitigationen_US
cg.contributor.initiativeAccelerated Breedingen_US

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