Selection markers in Pampa Rocha pigs: a comparison with autochthonous breeds of Spain and Portugal

Marcadores de selección en cerdos Pampa Rocha: comparación con razas autóctonas de España y Portugal

Objective. The analysis of selection markers allows to obtain information about the evolutive story of a particular breed or line and allows also to evaluate the usefulness of those markers for breeding programs. We have analyzed SNPs in four genes of the creole pig breed Pampa Rocha and we have compared their allelic frequencies with the allelic frequencies of diverse autochthonous breeds of Spain and Portugal and also with Piétrain pigs and wild boars. Materials and methods. The SNPs were analyzed using diverse RT-PCR methods. Results. The results of the analysis show that Pampa Rocha pigs have similar allelic frequencies with the autochthonous breeds of Spain and Portugal especially in the case of IGF2 and also, but not so coincident, in the case of PEPCK-C. However, they differ considerably for MC4R, and also, but in a lower extent, for PRKAG3. We discuss in this work the usefulness of our results for breeding of Pampa Rocha pigs. Conclusions. Our results demonstrate the peculiarity of the Pampa Rocha breed regarding the markers studied.

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