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dc.contributorGyawali, Sanjayaen_US
dc.contributorChao, Shiaomanen_US
dc.contributorSmith, Kevinen_US
dc.contributorHorsley, Richarden_US
dc.contributorCooper, Blakeen_US
dc.contributorMuehlbauer, Garyen_US
dc.contributorNeate, Stephanen_US
dc.creatorBurlakoti, Rishien_US
dc.identifier.citationRishi Burlakoti, Sanjaya Gyawali, Shiaoman Chao, Kevin Smith, Richard Horsley, Blake Cooper, Gary Muehlbauer, Stephan Neate. (1/1/2017). Genome-Wide Association Study of Spot Form of Net Blotch Resistance in the Upper Midwest Barley Breeding Programs. Phytopathology, 107 (1), pp. 100-108.en_US
dc.description.abstractPyrenophora teres f. maculata, the causal agent of spot form of net blotch (SFNB), is an emerging pathogen of barley in USA and Australia. Compared to net form of net blotch (NFNB), less is known in the United States upper Midwest barley breeding programs about host resistance and quantitative trait loci (QTL) associated with SFNB in breeding lines. The main objective of this study was to identify QTL associated with SFNB resistance in the upper Midwest two-rowed and six-rowed barley breeding programs using a genome-wide association study (GWAS) approach. A total of 376 breeding lines of barley were evaluated for SFNB resistance at the seedling stage in the greenhouse in Fargo in 2009. The lines were genotyped with 3072 single nucleotide polymorphism (SNP) markers. Phenotypic evaluation showed a wide range of variability among populations from the four breeding programs and the two barley-row types. The two-rowed barley lines were more susceptible to SFNB than the six-rowed lines. Continuous distributions of SFNB severity indicate the quantitative nature of SFNB resistance. The Mixed Linear Model (MLM) analysis, which included both population structure and kinship matrices, was used to identify significant SNP-SFNB associations. Principle component analysis (PCA) was used to control false marker-trait association. The linkage disequilibrium (LD) estimates varied among chromosomes (10 to 20 cM). The MLM analysis identified ten potential QTL in barley: SFNB-2H-8-10, SFNB-2H-38.03, SFNB-3H-58.64, SFNB-3H-78.53, SFNB-3H-91.88, SFNB-3H-117.1, SFNB-5H-155.3, SFNB-6H-5.4, SFNB-6H-33.74, and SFNB-7H-34.82. Among them, four QTL (SFNB-2H-8-10, SFNB-2H-38.03 SFNB-3H-78.53, and SFNB-3H-117.1) have not previously been published. Identification of SFNB resistant lines and QTL associated with SFNB resistance in this study will be useful in the development of barley genotypes with better SFNB resistanceen_US
dc.publisherAmerican Phytopathological Societyen_US
dc.rightsCopyrighted; all rights reserveden_US
dc.sourcePhytopathology;107,(2016) Pagination 100,108en_US
dc.subjectassociation mappingen_US
dc.titleGenome-Wide Association Study of Spot Form of Net Blotch Resistance in the Upper Midwest Barley Breeding Programsen_US
dc.typeJournal Articleen_US
cg.subject.agrovochordeum vulgareen_US
cg.contributor.centerNorth Dakota State University - NDSUen_US
cg.contributor.centerThe World Vegetable Center - AVRDCen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUnited State Department of Agriculture, Agricultural Research Service, Natural Resource Management Research - USDA-ARS Mandanen_US
cg.contributor.centerUniversity of Minnesota-Twin Cities - TWINen_US
cg.contributor.centerUniversity of Southern Queensland - USQen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionAustralia and New Zealanden_US
dc.identifier.statusTimeless limited accessen_US

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