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      Genética poblacional de cobayas de Colombia, Cavia spp. (Rodentia: Caviidae) con marcadores moleculares RAPD

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          Abstract

          En el presente estudio, mostramos los primeros resultados moleculares de formas colombianas de Cavia. Claramente, la población silvestre de C. anolaimae fue genéticamente diferenciada de la forma doméstica, C. porcellus, tal como ha sido demostrado por otros autores utilizando resultados morfométricos, osteológicos y cariotípicos. Ambas especies mostraron un considerable nivel de diversidad genética, aunque el segundo taxon mostró niveles mayores de esta diversidad. Los niveles de heterogeneidad genética también fueron mayores entre las poblaciones de C. porcellus (F ST = 0.254) que entre las poblaciones de C. anolaimae (F ST = 0.118). Esos niveles significativos de heterogeneidad genética, y los consiguientes bajos niveles de flujo génico, fueron discutidos comparativamente con los resultados por otros autores analizando otros marcadores moleculares (citocromo-b mitocondrial). Los resultados aquí mostrados son coherentes con un complejo proceso de domesticación en Cavia porcellus.

          Translated abstract

          Population genetics of Colombian Guinea Pigs, Cavia spp. (Rodentia: Caviidae) with RAPD molecular markers. The genus Cavia occurs in South America, mainly in grasslands.. We collected blood samples from 97 individuals in six field populations and analyzed them with RAPD molecular markers. One wild type (C. anolaimae) was differentiated from the domestic form (C. porcellus), in agreement with other authors who used morphological, osteological and karyotipic results. Genetic diversity was considerable in both species, but higher in C. porcellus. The levels of genetic heterogeneity were also higher among the populations of C. porcellus (F ST = 0.254) than among the populations of C. anolaimae (F ST = 0.118). These significant levels of genetic heterogeneity, and the low levels of gene flow, were consistent with a complex domestication process for Cavia porcellus. Rev. Biol. Trop. 56 (3): 1481-1501. Epub 2008 September 30.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                rbt
                Revista de Biología Tropical
                Rev. biol. trop
                Universidad de Costa Rica (San José )
                0034-7744
                September 2008
                : 56
                : 3
                : 1481-1501
                Article
                S0034-77442008000300039
                ce105992-1add-4630-a43d-76b8c5d3c286

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Costa Rica

                Self URI (journal page): http://www.scielo.sa.cr/scielo.php?script=sci_serial&pid=0034-7744&lng=en
                Categories
                Biodiversity Conservation
                Biology

                General life sciences,Animal science & Zoology
                Cavia,population genetics,RAPD,Colombia,domestication process

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