Are duplicated genes responsible for anthracnose resistance in common bean?

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCosta, Larissa Carvalho-
Autor(es): dc.creatorNalin, Rafael Storto-
Autor(es): dc.creatorRamalho, Magno Antonio Patto-
Autor(es): dc.creatorSouza, Elaine Aparecida de-
Data de aceite: dc.date.accessioned2026-02-09T12:22:24Z-
Data de disponibilização: dc.date.available2026-02-09T12:22:24Z-
Data de envio: dc.date.issued2018-08-16-
Data de envio: dc.date.issued2018-08-16-
Data de envio: dc.date.issued2017-03-15-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/29988-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1159971-
Descrição: dc.descriptionThe race 65 of Colletotrichum lindemuthianum, etiologic agent of anthracnose in common bean, is distributed worldwide, having great importance in breeding programs for anthracnose resistance. Several resistance alleles have been identified promoting resistance to this race. However, the variability that has been detected within race has made it difficult to obtain cultivars with durable resistance, because cultivars may have different reactions to each strain of race 65. Thus, this work aimed at studying the resistance inheritance of common bean lines to different strains of C. lindemuthianum, race 65. We used six C. lindemuthianum strains previously characterized as belonging to the race 65 through the international set of differential cultivars of anthracnose and nine commercial cultivars, adapted to the Brazilian growing conditions and with potential ability to discriminate the variability within this race. To obtain information on the resistance inheritance related to nine commercial cultivars to six strains of race 65, these cultivars were crossed two by two in all possible combinations, resulting in 36 hybrids. Segregation in the F2 generations revealed that the resistance to each strain is conditioned by two independent genes with the same function, suggesting that they are duplicated genes, where the dominant allele promotes resistance. These results indicate that the specificity between host resistance genes and pathogen avirulence genes is not limited to races, it also occurs within strains of the same race. Further research may be carried out in order to establish if the alleles identified in these cultivars are different from those described in the literature.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherPLOS-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourcePLoS One-
Palavras-chave: dc.subjectColletotrichum lindemuthianum-
Palavras-chave: dc.subjectCommon bean-
Palavras-chave: dc.subjectAlleles-
Palavras-chave: dc.subjectBeans-
Título: dc.titleAre duplicated genes responsible for anthracnose resistance in common bean?-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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