Genetic diversity and population structure in diploid potatoes of Solanum tuberosum group phureja

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dc.contributor.authorJuyó, Deissy
dc.contributor.authorSarmiento, Felipe
dc.contributor.authorAlvarez, Maria
dc.contributor.authorBrochero, Helena
dc.contributor.authorGebhardt, Christiane
dc.contributor.authorMosquera, Teresa
dc.date.accessioned2015-07-21T17:43:40Z
dc.date.available2015-07-21T17:43:40Z
dc.date.issued2015-03
dc.description.abstractThe south of Colombia is a center of diversity for diploid potatoes in the Solanum tuberosum group Phureja. This germplasm is important for genetic studies and is used as a genetic resource in potato breeding programs. In Andean countries, Phureja group potatoes are a staple food and represent important incomes for smallholder farmers. We studied the genetic diversity and population structure of 110 diploid potato group Phureja accessions by analyzing allele frequencies using a set of 42 microsatellites (simple sequence repeats). The accessions used in this study were 97 diploid S. tuberosum Phureja group accessions from the Colombian Core Collection and 13 diploid accessions from the German germplasm bank. Allelic richness, heterozygosity, population differentiation (F statistics) and population allocation by means of Bayesian modeling analyses were performed. Results indicated that the population is highly diverse (Hs = 0.55), and genetic differentiation (FST = 0.09636) is mainly due to differences between accessions (FIS = 0.17115). These indexes of population differentiation suggest a moderate division within the population but not a marked population structure. Results with respect to the genetic structure of the analyzed germplasm provide the basis for the development and implementation of linkage and association mapping as well as methods for precision breeding such as the search for diagnostic molecular markers.en
dc.format.mimetypeapplication/pdf
dc.identifier.citationJuyó, D., Sarmiento, F., Álvarez, M., Brochero, H., Gebhardt, C., & Mosquera, T. (2015). Genetic Diversity and Population Structure in Diploid Potatoes of Solanum tuberosum Group Phureja. Crop Science 55, 760-769. doi:10.2135/cropsci2014.07.0524en
dc.identifier.urihttp://hdl.handle.net/10625/54407
dc.language.isoen
dc.publisherCrop Science Society of Americaen
dc.subjectCOLOMBIAen
dc.subjectANDEAN REGIONen
dc.subjectGENETIC RESOURCESen
dc.subjectROOT CROPSen
dc.subjectBIODIVERSITYen
dc.subjectSMALLHOLDERSen
dc.subjectPLANT BREEDINGen
dc.subjectFOOD SECURITYen
dc.subjectSOLANUM TUBEROSUMen
dc.subjectGENOTYPESen
dc.subjectHETEROZYGOSITYen
dc.subjectHYBRIDIZATIONen
dc.titleGenetic diversity and population structure in diploid potatoes of Solanum tuberosum group phurejaen
dc.typeJournal Article (peer-reviewed)en
idrc.copyright.holderCrop Science Society of America
idrc.dspace.accessIDRC Onlyen
idrc.noaccessDue to copyright restrictions the full text of this research output is not available in the IDRC Digital Library or by request from the IDRC Library. / Compte tenu des restrictions relatives au droit d'auteur, le texte intégral de cet extrant de recherche n'est pas accessible dans la Bibliothèque numérique du CRDI, et il n'est pas possible d'en faire la demande à la Bibliothéque du CRDI.en
idrc.project.number106926
idrc.project.titleImproving Potato Production for Increased Food Security of Indigenous Communities in Colombia (CIFSRF)en
idrc.recordsserver.bcsnumberIC01-4418-175
idrc.rims.adhocgroupIDRC SUPPORTEDen

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