The aim of this study was to evaluate the genetic diversity of populations of domestic pigeons (Columba livia) in Lorica, Colombia using genes that encode plumage color. Random sampling were made in six colonies between November and December 2015. Through urban excursions, direct observation and photographic records, 356 pigeons were studied. Autosomal markers that encode plumage coloration and design were used: Grizzle (G), Spread (S), Checker (C), and sex-linked locus Ash-Red (B). The genetic parameters allele frequencies, genetic diversity, Hardy-Weinberg equilibrium and population structure were calculated by PopGene 1.31, genetic structure and genetic distance by FSTAT v.2.9.3.2 and the dendrogram was made using the program MEGA 5. Spread and Checker markers were the most frequent, while Ash-Red marker presented the lowest values. Low genetic differentiation was obtained among popul...

The aim of this study was to analyse the genetic structure of domestic cats (Felis catus) in rural environments in Lorica, Colombia using morphological markers of colour. A phenotypic classification was made of 134 individuals distributed in three populations, attending to the presence or absence of the autosomal markers Non-agouti, Blotched tabby, Dilution, White spotting, Dominant white and the marker Orange linked to sex. The Blotched tabby marker was the most frequent and showed a possible natural selection, while Dominant white showed the lowest values. Populations showed absence of Hardy-Weinberg equilibrium. Moreover, an excess of homozygotes was evident, and differences between populations and scarce gene flow between populations was found. Polymorphism of genes that encode the colour of cats in rural habitats likely differ from domestic conditions in urban environment.

El objetivo de este trabajo fue evaluar la diversidad genética de las poblaciones de palomas domésticas (Columba livia) en Lorica, Colombia, utilizando genes que codifican la coloración y diseño del plumaje. Se realizaron muestreos aleatorios en seis colonias entre noviembre y diciembre de 2015. Mediante excursiones urbanas, observación directa y registros fotográficos se estudiaron 356 palomas. Se utilizaron los marcadores autosómicos que codifican la coloración y diseño del plumaje: Grizzle (G), Spread (S), Checker (C), y el locus ligado al sexo Ash-Red (B). Los parámetros genéticos de frecuencia alélica, diversidad genética, equilibrio Hardy-Weinberg y estructura poblacional fueron calculados a través del programa PopGene 1.31, la estructura genética y la distancia genética mediante el programa FSTAT v. 2.9.3.2, y el dendrograma se realizó con el programa MEGA 5. Los ...

The aim of this study was to analyse the genetic structure of domestic cats (Felis catus) in rural environments in Lorica, Colombia using morphological markers of colour. A phenotypic classification was made of 134 individuals distributed in three populations, attending to the presence or absence of the autosomal markers Non-agouti, Blotched tabby, Dilution, White spotting, Dominant white and the marker Orange linked to sex. The Blotched tabby marker was the most frequent and showed a possible natural selection, while Dominant white showed the lowest values. Populations showed absence of Hardy-Weinberg equilibrium. Moreover, an excess of homozygotes was evident, and differences between populations and scarce gene flow between populations was found. Polymorphism of genes that encode the colour of cats in rural habitats likely differ from domestic conditions in urban environment.

The objective of this study was to investigate the genetic variability of criollo horses (Equus caballus) by genes associated with the coat. Fields visits were done between January and May 2016 in five populations of the municipality of Valencia, Colombia. The phenotypic characterization of the adult animals present in the farms was performed in relation to the autosomal markers of morphological codification Extension, Agouti, Cream, Gris, White, Tobiano, Overo and Roan. The results showed absence of the markers White and Overo, whereas the markers Extension and Agouti had the largest frequencies, possibly favored by artificial selection due to temperament and cunning respectively. Populations were found in equilibrium Hardy-Weinberg and showed excess of homozygotes and high levels of gene flow.

The objective of this study was to investigate the genetic variability of criollo horses (Equus caballus) by genes associated with the coat. Fields visits were done between January and May 2016 in five populations of the municipality of Valencia, Colombia. The phenotypic characterization of the adult animals present in the farms was performed in relation to the autosomal markers of morphological codification Extension, Agouti, Cream, Gris, White, Tobiano, Overo and Roan. The results showed absence of the markers White and Overo, whereas the markers Extension and Agouti had the largest frequencies, possibly favored by artificial selection due to temperament and cunning respectively. Populations were found in equilibrium Hardy-Weinberg and showed excess of homozygotes and high levels of gene flow.