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dc.contributor.authorCuenca, José
dc.contributor.authorAleza, Pablo
dc.contributor.authorVicent, Antonio
dc.contributor.authorBrunel, Dominique
dc.contributor.authorOllitrault, Patrick
dc.contributor.authorNavarro, Luis
dc.date.accessioned2017-06-01T10:11:40Z
dc.date.available2017-06-01T10:11:40Z
dc.date.issued2013
dc.identifier.citationCuenca, J., Aleza, P., Vicent, A., Brunel, D., Ollitrault, P., & Navarro, L. (2013). Genetically based location from triploid populations and gene ontology of a 3.3-mb genome region linked to Alternaria brown spot resistance in citrus reveal clusters of resistance genes. PLoS One, 8(10), e76755.
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/20.500.11939/5074
dc.description.abstractGenetic analysis of phenotypical traits and marker-trait association in polyploid species is generally considered as a challenge. In the present work, different approaches were combined taking advantage of the particular genetic structures of 2n gametes resulting from second division restitution (SDR) to map a genome region linked to Alternaria brown spot (ABS) resistance in triploid citrus progeny. ABS in citrus is a serious disease caused by the tangerine pathotype of the fungus Alternaria alternata. This pathogen produces ACT-toxin, which induces necrotic lesions on fruit and young leaves, defoliation and fruit drop in susceptible genotypes. It is a strong concern for triploid breeding programs aiming to produce seedless mandarin cultivars. The monolocus dominant inheritance of susceptibility, proposed on the basis of diploid population studies, was corroborated in triploid progeny. Bulk segregant analysis coupled with genome scan using a large set of genetically mapped SNP markers and targeted genetic mapping by half tetrad analysis, using SSR and SNP markers, allowed locating a 3.3 Mb genomic region linked to ABS resistance near the centromere of chromosome III. Clusters of resistance genes were identified by gene ontology analysis of this genomic region. Some of these genes are good candidates to control the dominant susceptibility to the ACT-toxin. SSR and SNP markers were developed for efficient early marker-assisted selection of ABS resistant hybrids.
dc.language.isoen
dc.titleGenetically Based Location from Triploid Populations and Gene Ontology of a 3.3-Mb Genome Region Linked to Alternaria Brown Spot Resistance in Citrus Reveal Clusters of Resistance Genes
dc.typearticle
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.date.issuedFreeFormOCT 8 2013
dc.entidadIVIACentro de Citricultura y Producción Vegetal
dc.entidadIVIACentro de Protección Vegetal y Biotecnología
dc.identifier.doi10.1371/journal.pone.0076755
dc.journal.issueNumber10
dc.journal.titlePlos One
dc.journal.volumeNumber8
dc.page.finale767553
dc.page.initiale767553
dc.rights.accessRightsopenAccess
dc.source.typeImpreso
dc.type.hasVersionpublishedVersion


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