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dc.contributor.author Contreras-Soto, RI
dc.contributor.author Mora, F
dc.contributor.author Lazzari, F
dc.contributor.author de Oliveira, MAR
dc.contributor.author Scapim, CA
dc.contributor.author Schuster, I
dc.date.accessioned 2024-01-17T15:54:36Z
dc.date.available 2024-01-17T15:54:36Z
dc.date.issued 2017
dc.identifier.uri https://repositorio.uoh.cl/handle/611/561
dc.description.abstract Knowledge of the genetic architecture of flowering and maturity is needed to develop effective breeding strategies in tropical soybean. The aim of this study was to identify haplotypes across multiple environments that contribute to flowering time and maturity, with the purpose of selecting desired alleles, but maintaining a minimal impact on yield-related traits. For this purpose, a genome-wide association study (GWAS) was undertaken to identify genomic regions that control days to flowering (DTF) and maturity (DTM) using a soybean association mapping panel genotyped for single nucleotide polymorphism (SNP) markers. Complementarily, yield-related traits were also assessed to discuss the implications for breeding strategies. To detect either stable or specific associations, the soybean cultivars (N = 141) were field-evaluated across eight tropical environments of Brazil. Seventy-two and forty associations were significant at the genome-wide level relating respectively to DTM and DTF, in two or more environments. Haplotype-based GWAS identified three haplotypes (Gm12_Hap12; Gm19_Hap42 and Gm20_Hap32) significantly co-associated with DTF, DTM and yield-related traits in single and multiple environments. These results indicate that these genomic regions may contain genes that have pleiotropic effects on time to flowering, maturity and yield-related traits, which are tightly linked with multiple other genes with high rates of linkage disequilibrium.
dc.description.sponsorship Coordenacao de aperfeicoamento de pessoal de nivel superior (CAPES) of Brazil(Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES))
dc.description.sponsorship Programa de Pos-graduacao em Genetica e Melhoramento from the State University of Maringa
dc.relation.uri http://dx.doi.org/10.1270/jsbbs.17024
dc.subject quantitative trait loci
dc.subject pleiotropy
dc.subject tropical soybean
dc.subject linkage disequilibrium
dc.title Genome-wide association mapping for flowering and maturity in tropical soybean: implications for breeding strategies
dc.type Artículo
uoh.revista BREEDING SCIENCE
dc.identifier.doi 10.1270/jsbbs.17024
dc.citation.volume 67
dc.citation.issue 5
dc.identifier.orcid Contreras-Soto, Rodrigo/0000-0001-6468-9394
dc.identifier.orcid Schuster, Ivan/0000-0002-5781-2339
dc.identifier.orcid scapim, carlos/0000-0002-7047-9606
uoh.indizacion Web of Science


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