Descrição metodológica do uso de marcadores moleculares associado a informações de pedigree na predição do valor genético de animais por simulação utilizando a metodologia BLUP

Abstract

The present study aims to compare estimates of breeding values using traditional pedigree and the ute molecular markers to in order to ascertain, the similarity checking genotypic and gene frequency, and describe the steps to perform such analysis. Files were generated from traditional pedigree ("pedigree.txt") and genotyped animals ("marcadores.txt") with the type SNP markers for analysis of traditional BLUP and marker, respectively, together with a phenotypes file ("fenotipo.txt ") that was also generated. For the traditional selection was assembled relationship matrix, which presents the average breeding value of animals, based on pedigree. In genomic selection to obtain the genomic matrix, that presents the genomic breeding value of animals, based on molecular markers SNP type. In comparation, the genomic selection was higher by 13% over traditional selection, with correlations of 0.95 and 0.83, respectively, with the true genetic value. The results of this study revealed a great potential of genomic selection in increasing the efficiency of breeding, since the genomic predictions increase the accuracy of selection compared to the traditional selection.