Abstract

PARDO PEREZ, Enrique; MARTINEZ BULA, María Teresa  and  ZAMBRANO CHARRASQUIEL, José Darío. First report of genetic variability in cats (Felis catus), with phenotypic markers, in Coveñas, Sucre. Rev. Med. Vet. [online]. 2018, n.36, pp.27-36. ISSN 0122-9354.  https://doi.org/10.19052/mv.5169.

This research aimed to determine genetic variability in domestic cat populations (Felis catus) using genes that codify the coloration, design and length of the coat in Coveñas, Sucre, Colombia. Random samples were collected between September and December 2014 from 187 adult animals in five neighborhoods of Coveñas, and each animal was characterized phenotypically. The nomenclature used in this research follows the Standardized Genetic Nomenclature for the Domestic Cat (1968), and examines the autosomal markers of morphological coding: the locus linked to sex Orange (O) and the autosomal loci Non-agouti (a), tabby blotched (Tb), dilution (d), long hair (l) spotting white (s) and dominant white (W). The genetic parameters of the population were calculated: allele frequency, genetic diversity, gene flow, Hardy-Weinberg equilibrium, and genetic distance; and phylogenetic relationships among cat populations were inferred. It was found that the Non-agouti marker was the most frequent, while the tabby blotched and dominant white genes had the lowest values. Most genetic diversity was found within the studied populations (HS), with little diversity between populations (D), and high gene flow was evidenced. An excess of heterozygotes was observed in the population. There was no Hardy-Weinberg equilibrium. Populations are genetically closely related. In addition, a possible natural and artificial selection of the Non-agouti locus was evidenced.

Keywords : diversity; Felis catus; heterozygosity; phenotypic markers.

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