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dc.creatorZorić, Miroslav
dc.creatorDodig, Dejan
dc.creatorKobiljski, Borislav
dc.creatorQuarrie, Steve
dc.creatorBarnes, Jeremy
dc.date.accessioned2021-04-26T18:55:48Z
dc.date.available2021-04-26T18:55:48Z
dc.date.issued2012
dc.identifier.issn0016-6707
dc.identifier.urihttp://fiver.ifvcns.rs/handle/123456789/1090
dc.description.abstractA set of 96 winter wheat accessions sampled from a variety of geographic origins, including cultivars and breeding lines, were characterized with 46 genome-wide SSR loci for genetic diversity and population structure. The genetic diversity within these accessions was examined using a genetic distance-based and a model-based clustering method. The model-based analysis identified an underlying population structure comprising of four distinct sub-populations which corresponded well with distance-based groupings. Information on the population structure is taken into account in an association mapping study of grain yield from a 3-years field trial incorporating fully irrigated, rainfed and drought stress treatments. A total of 21 marker-grain yield associations (P lt 0.01) were identified with nine SSR markers. Most associations were detected only in one to three environments (treatment/year combination), with an average R (2) value around 13 %. However, marker gwm484 (on chromosome 2D) was associated with yield in six environments, including irrigated, rainfed and drought stress treatments, suggesting it could be used to improve grain yield across a range of environments. Variation in grain yield at this locus was associated with earliness, early vigour, kernels per spikelet and harvest index. Microsatellite locus psp3200 (on chromosome 6D) was associated with yield in dry and hot environments, which was related to earliness, early vigour, productive tillering and total biomass per plant. Partial least squares regression, with nine environmental factors, showed that precipitation from tillering to maturity was the main environmental factor causing marker x environment associations for grain yield.en
dc.publisherSpringer, Dordrecht
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/254064/EU//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31005/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31066/RS//
dc.rightsrestrictedAccess
dc.sourceGenetica
dc.subjectWheaten
dc.subjectGenetic diversityen
dc.subjectPopulation structureen
dc.subjectAssociation mappingen
dc.subjectGrain yielden
dc.subjectEnvironmental factorsen
dc.titlePopulation structure in a wheat core collection and genomic loci associated with yield under contrasting environmentsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage275
dc.citation.issue4-6
dc.citation.other140(4-6): 259-275
dc.citation.rankM23
dc.citation.spage259
dc.citation.volume140
dc.identifier.doi10.1007/s10709-012-9677-2
dc.identifier.pmid22968391
dc.identifier.rcubconv_2265
dc.identifier.scopus2-s2.0-84866536815
dc.identifier.wos000308968300016
dc.type.versionpublishedVersion


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