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Genetic diversity of Phytophthora infestans in the Northern Andean region

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dc.creatorCárdenas, Marthaspa
dc.creatorGrajales, Alejandrospa
dc.creatorSierra, Robertospa
dc.creatorRojas, Alejandrospa
dc.creatorGonzález-Almario, Adrianaspa
dc.creatorVargas, Angelaspa
dc.creatorMarín, Mauriciospa
dc.creatorFermín, Gustavospa
dc.creatorLagos, Luz Espa
dc.creatorGrünwald, Niklaus Jspa
dc.creatorBernal, Adrianaspa
dc.creatorSalazar, Camilo
dc.creatorRestrepo, Silviaspa
dc.date.accessioned2020-08-19T14:43:47Z
dc.date.available2020-08-19T14:43:47Z
dc.date.created2011-02-09spa
dc.description.abstractBackground Phytophthora infestans (Mont.) de Bary, the causal agent of potato late blight, is responsible for tremendous crop losses worldwide. Countries in the northern part of the Andes dedicate a large proportion of the highlands to the production of potato, and more recently, solanaceous fruits such as cape gooseberry (Physalis peruviana) and tree tomato (Solanum betaceum), all of which are hosts of this oomycete. In the Andean region, P. infestans populations have been well characterized in Ecuador and Peru, but are poorly understood in Colombia and Venezuela. To understand the P. infestans population structure in the Northern part of the Andes, four nuclear regions (ITS, Ras, ?-tubulin and Avr3a) and one mitochondrial (Cox1) region were analyzed in isolates of P. infestans sampled from different hosts in Colombia and Venezuela. Results Low genetic diversity was found within this sample of P. infestans isolates from crops within several regions of Colombia and Venezuela, revealing the presence of clonal populations of the pathogen in this region. We detected low frequency heterozygotes, and their distribution patterns might be a consequence of a high migration rate among populations with poor effective gene flow. Consistent genetic differentiation exists among isolates from different regions. Conclusions The results here suggest that in the Northern Andean region P. infestans is a clonal population with some within-clone variation. P. infestans populations in Venezuela reflect historic isolation that is being reinforced by a recent self-sufficiency of potato seeds. In summary, the P. infestans population is mainly shaped by migration and probably by the appearance of variants of key effectors such as Avr3a.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1186/1471-2156-12-23
dc.identifier.issnEISSN: 1471-2156
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27769
dc.language.isoengspa
dc.publisherBioMed Centralspa
dc.relation.citationIssueNo. 23
dc.relation.citationTitleBMC Genetics
dc.relation.citationVolumeVol. 12
dc.relation.ispartofBMC Genetics, EISSN: 1471-2156, Vol.12, No.23 (2011); 13 pp. spa
dc.relation.urihttps://bmcgenet.biomedcentral.com/track/pdf/10.1186/1471-2156-12-23spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceBMC Geneticsspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordInternal transcribe spacespa
dc.subject.keywordPhytophthora infestansspa
dc.subject.keywordMetalaxylspa
dc.subject.keywordPopulation genetic analysisspa
dc.subject.keywordMismatch distributionspa
dc.titleGenetic diversity of Phytophthora infestans in the Northern Andean regionspa
dc.title.TranslatedTitleDiversidad genética de Phytophthora infestans en la región andina nortespa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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