Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1123752
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dc.contributor.authorMellers, G.
dc.contributor.authorAguilera, J. G.
dc.contributor.authorBird, N.
dc.contributor.authorBONATO, A. L. V.
dc.contributor.authorBONOW, S.
dc.contributor.authorCAIERAO, E.
dc.contributor.authorCONSOLI, L.
dc.contributor.authorSANTANA, F. M.
dc.contributor.authorSimmonds, J.
dc.contributor.authorSteed, A.
dc.contributor.authorTORRES, G. A. M.
dc.contributor.authorUauy, C.
dc.contributor.authorWright, T. I. C.
dc.contributor.authorSCHEEREN, P. L.
dc.contributor.authorNicholson, P.
dc.contributor.authorCockram, J.
dc.date.accessioned2020-07-09T11:11:54Z-
dc.date.available2020-07-09T11:11:54Z-
dc.date.created2020-07-08
dc.date.issued2020
dc.identifier.citationG3: Genes, Genomes, Genetics, v. 10, p. 2229-2239, July 2020
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1123752-
dc.descriptionABSTRACT Bread wheat (Triticum aestivum L.) is one of the world?s most important crops. Maintaining wheat yield gains across all of its major production areas is a key target toward underpinning global food security. Brazil is a major wheat producer in South America, generating grain yields of around 6.8 million tons per year. Here, we establish and genotype a wheat association mapping resource relevant to contemporary Brazilian wheat breeding programs. The panel of 558 wheat accessions was genotyped using an Illumina iSelect 90,000 single nucleotide polymorphism array. Following quality control, the final data matrix consisted of 470 accessions and 22,475 polymorphic genetic markers (minor allele frequency $5%, missing data ,5%). Principal component analysis identified distinct differences between materials bred predominantly for the northern Cerrado region, compared to those bred for southern Brazilian agricultural areas. We augmented the genotypic data with 26 functional Kompetitive Allele-Specific PCR (KASP) markers to identify the allelic combinations at genes with previously known effects on agronomically important traits in the panel. This highlighted breeding targets for immediate consideration ? notably, increased Fusarium head blight resistance via the Fhb1 locus. To demonstrate the panel?s likely future utility, genome-wide association scans for several phenotypic traits were undertaken. Significant (Bonferroni corrected P , 0.05) marker-trait associations were detected for Fusarium kernel damage (a proxy for type 2 Fusarium resistance), identifying previously known quantitative trait loci in the panel. This association mapping panel represents an important resource for Brazilian wheat breeding, allowing future genetic studies to analyze multiple agronomic traits within a single genetically diverse population.
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectGenetic Characterization
dc.subjectBrazilian Breeding
dc.subjectSingle Nucleotide Polymorphism Array
dc.subjectSingle nucleotide polymorphism (SNP)
dc.subjectGenotyping quantitative trait locus (QTL)
dc.subjectGenome-wide association scan (GWAS)
dc.subjectGenetic diversity
dc.subjectPolyploid crop
dc.subjectFusarium head blight (FHB)
dc.titleGenetic characterization of a wheat association mapping panel relevant to brazilian breeding using a high-density single nucleotide polymorphism array.
dc.typeArtigo de periódico
dc.subject.nalthesaurusWheat
dc.subject.nalthesaurusBreeding
riaa.ainfo.id1123752
riaa.ainfo.lastupdate2020-07-08
dc.contributor.institutionGreg Mellers, *The John Bingham Laboratory, NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, United Kingdom
dc.contributor.institutionJorge González Aguilera, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdomeng
dc.contributor.institutionNick Bird, The John Bingham Laboratory, NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, United Kingdomeng
dc.contributor.institutionANA LIDIA VARIANI BONATO, CNPTeng
dc.contributor.institutionSANDRO BONOW, CPACTeng
dc.contributor.institutionEDUARDO CAIERAO, CNPTeng
dc.contributor.institutionLUCIANO CONSOLI, CNPTeng
dc.contributor.institutionFLAVIO MARTINS SANTANA, CNPTeng
dc.contributor.institutionJames Simmonds, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdomeng
dc.contributor.institutionAndrew Steed, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdomeng
dc.contributor.institutionGISELE ABIGAIL MONTAN TORRES, CNPTeng
dc.contributor.institutionCristobal Uauy, ‡John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdomeng
dc.contributor.institutionTally I. C. Wright, The John Bingham Laboratory, NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, United Kingdom,†eng
dc.contributor.institutionPEDRO LUIZ SCHEEREN, CNPTeng
dc.contributor.institutionPaul Nicholson, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdomeng
dc.contributor.institutionJames Cockram, The John Bingham Laboratory, NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, United Kingdom.eng
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