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dc.contributor.authorMontilla-Bascón, Gracia-
dc.contributor.authorRispail, Nicolas-
dc.contributor.authorSánchez-Martín, Javier-
dc.contributor.authorRubiales, Diego-
dc.contributor.authorMur, Luis A. J.-
dc.contributor.authorLangdon, Tim-
dc.contributor.authorHowarth, Catherine-
dc.contributor.authorPrats, Elena-
dc.identifier.citationFrontiers in Plant Science 6: 103 (2015)-
dc.description.abstractDiseases caused by crown rust (Puccinia coronata f. sp. avenae) and powdery mildew (Blumeria graminis f. sp. avenae) are among the most important constraints for the oat crop. Breeding for resistance is one of the most effective, economical, and environmentally friendly means to control these diseases. The purpose of this work was to identify elite alleles for rust and powdery mildew resistance in oat by association mapping to aid selection of resistant plants. To this aim, 177 oat accessions including white and red oat cultivars and landraces were evaluated for disease resistance and further genotyped with 31 simple sequence repeat and 15,000 Diversity Arrays Technology (DArT) markers to reveal association with disease resistance traits. After data curation, 1712 polymorphic markers were considered for association analysis. Principal component analysis and a Bayesian clustering approach were applied to infer population structure. Five different general and mixed linear models accounting for population structure and/or kinship corrections and two different statistical tests were carried out to reduce false positive. Five markers, two of them highly significant in all models tested were associated with rust resistance. No strong association between any marker and powdery mildew resistance at the seedling stage was identified. However, one DArT sequence, oPt-5014, was strongly associated with powdery mildew resistance in adult plants. Overall, the markers showing the strongest association in this study provide ideal candidates for further studies and future inclusion in strategies of marker-assisted selection.-
dc.description.sponsorshipThis work was supported by the Spanish Ministry of Economy and Competitivity AGL2013-48687-R, the European Regional Development Funds, a JAE PreDoc fellowship from CSIC to GM-B, a Ramon y Cajal funds from CSIC to NR and an Institute Strategic Programme Grant University (BBS/E/W/10962A01) to IBERS, Aberystwyth awarded by the Biotechnology and Biological Sciences Research Council (BBSRC), UK.-
dc.publisherFrontiers Media-
dc.relation.isversionofPublisher's version-
dc.titleGenome-wide association study for crown rust (Puccinia coronata f. sp. avenae) and powdery mildew (Blumeria graminis f. sp. avenae) resistance in an oat (Avena sativa) collection of commercial varieties and landraces-
dc.description.peerreviewedPeer reviewed-
dc.description.versionPeer Reviewed-
dc.rights.holderCopyright © 2015 Montilla-Bascón, Rispail, Sánchez-Martín, Rubiales, Mur, Langdon, Howarth and Prats.-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)-
dc.contributor.funderBiotechnology and Biological Sciences Research Council (UK)-
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