Survey of the Bru1 gene for brown rust resistance in Brazilian local and basic sugarcane germplasm

dc.contributor.authorNeuber, Ana Caroline [UNESP]
dc.contributor.authorCamilo dos Santos, Fernanda Raquel
dc.contributor.authorda Costa, Juliana Borges
dc.contributor.authorVolpin, Maicon
dc.contributor.authorXavier, Mauro Alexandre
dc.contributor.authorPerecin, Dilermando [UNESP]
dc.contributor.authorVillavicencio Burbano, Roberto Carlos [UNESP]
dc.contributor.authorLandell, Marcos Guimarães de Andrade
dc.contributor.authorPinto, Luciana Rossini
dc.contributor.institutionInstituto Agronômico de Campinas - IAC
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEscuela Superior Politécnica del Litoral – ESPOL
dc.description.abstractBru1 is currently the major gene conferring brown rust resistance in sugarcane, and diagnostic markers are available. A survey for the presence of this gene was conducted on 391 genotypes including Brazilian cultivars, clones and basic germplasm. The efficiency of these markers for identifying resistant cultivars and artificially inoculated basic germplasm was also evaluated. The Bru1 frequency among cultivars (73.5%) suggests this gene is the prevalent source of brown rust resistance in Brazilian sugarcane breeding programmes. Most of the cultivars known to be resistant were positive for Bru1, although other genes for resistance could be present in lines not having Bru1. Only 17.8% of the basic germplasm accessions were positive for the Bru1 gene, and a low correlation between Bru1 diagnostic markers and brown rust severity was observed for basic germplasm accessions. Overall, Bru1 diagnostic markers proved to be efficient identifying resistant cultivars and clones and have potential to be in screening brown rust resistance in Brazilian breeding programmes.en
dc.description.affiliationCentro de Cana Instituto Agronômico de Campinas - IAC, Rod, Antonio Duarte Nogueira Km 321
dc.description.affiliationUniversidade Estadual Paulista- UNESP, Av. Prof. Paulo Donato Castellane, s/no
dc.description.affiliationCampus Gustavo Galindo Velazco Escuela Superior Politécnica del Litoral – ESPOL, Km 30.5, Via Perimetral
dc.description.affiliationUnespUniversidade Estadual Paulista- UNESP, Av. Prof. Paulo Donato Castellane, s/no
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013-22500-5
dc.identifier.citationPlant Breeding, v. 136, n. 2, p. 182-187, 2017.
dc.relation.ispartofPlant Breeding
dc.rights.accessRightsAcesso restrito
dc.subjectdisease resistance
dc.subjectmolecular markers
dc.subjectPuccinia melanocephala
dc.titleSurvey of the Bru1 gene for brown rust resistance in Brazilian local and basic sugarcane germplasmen