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A diverse and specific Phytophthora infestans sensu lato population associated with Solanum betaceum in southern Colombia

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dc.contributor.advisorRestrepo Restrepo, Silvia
dc.contributor.authorMideros Bastidas, María Fernanda
dc.date.accessioned2018-09-28T07:57:14Z
dc.date.available2018-09-28T07:57:14Z
dc.date.issued2011
dc.description.abstractNew populations within the genus Phytophthora, associated with late blight have been reported in recent years. In South America, the presence of P. andina associated with native and exotic plants, among which is tree tomato (Solanum betaceum), have been described as the result of the complex process of evolution of these plant pathogens. In the present study nuclear, mitochondrial sequences and SSR markers were used to determine the genetic diversity and structure of Phytophthora samples collected from S.betaceum crops in the Nariño and Putumayo departments. In addition, detached leaf assays were used to test aggressiveness of the strains on several cultivars of the host. Our results showed a P. infestans sensu lato population characterized by a high genetic diversity with individuals showing different levels of ploidy and high clonality, supported by the presence of only the A1 mating type. Isolates showed a high specificity to the host with a wide range of aggressiveness that could not be related to the genetic variation found. Ancestral polymorphism, as a result of cultural conditions of the host and an ongoing hybridization process in the region were suggested as hypothesis to explain the variation found. Results of this study contribute to the understanding of the evolutionary mechanisms associated with P. infestans sensu lato innative hosts.
dc.description.degreelevelMaestríaes_CO
dc.description.degreenameMagíster en Ciencias Biológicases_CO
dc.format.extent58 hojases_CO
dc.format.mimetypeapplication/pdfes_CO
dc.identifier.doi10.57784/1992/11426
dc.identifier.instnameinstname:Universidad de los Andesspa
dc.identifier.pdfu470486.pdf
dc.identifier.reponamereponame:Repositorio Institucional Sénecaspa
dc.identifier.repourlrepourl:https://repositorio.uniandes.edu.co/spa
dc.identifier.urihttps://hdl.handle.net/1992/11426
dc.language.isoenges_CO
dc.publisherUniversidad de los Andeses_CO
dc.publisher.departmentDepartamento de Ciencias Biológicasspa
dc.publisher.facultyFacultad de Cienciases_CO
dc.publisher.programMaestría en Ciencias Biológicases_CO
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.coarhttp://purl.org/coar/access_right/c_abf2spa
dc.rights.licenseAl consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.spa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.sourceinstname:Universidad de los Andeses_CO
dc.sourcereponame:Repositorio Institucional Sénecaes_CO
dc.subject.keywordFitoftoraes_CO
dc.subject.keywordHaplotiposes_CO
dc.subject.keywordTomate de árboles_CO
dc.subject.themesBiología
dc.titleA diverse and specific Phytophthora infestans sensu lato population associated with Solanum betaceum in southern Colombiaes_CO
dc.typeTrabajo de grado - Maestríaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_bdccspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/masterThesisspa
dc.type.redcolhttp://purl.org/redcol/resource_type/TMspa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
dspace.entity.typePublication
person.identifier.cvlachttps://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000468800
person.identifier.gsidhttps://scholar.google.es/citations?user=7_dVIeAAAAAJ
person.identifier.orcid0000-0001-9016-1040
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