Características génicas de las poblaciones de bovinos criollos americanos en base a microsatélites

Abstract

The objective of this study is to analyze the major gene parameters found in different genotypes of cattle of Iberian origin in the Americas. The work was based on the review of different results of the genetic markers analyzed in blood of Creole cattle incountries of North America until cattle in Patagonia in the southern part of South America. Presents results of the markers most used and recommended for ca ttle. Population genetic parameters analyzed were: total number of alleles (Na), by microsatellite marker allele 189 frequencies), the factors observed (Ho) and expected (He), the coefficients of inbreeding (Fis), polymorphic information content) CIP) and compliance with the assumption of Hardy-Weinberg equilibrium. The percentage of variance between populations and the (Fst) is also reported. 20 papers on microsatellites in cattle, analysed 19 of them with informa tion from Creoles of America. Highlights a number of alleles locus of 4 to 13, higher by more than 0.6 heterozygosity and polymorphic information content high. Creole ca ttle have very little variation among their populations, the distance that separates them is not very marked, but they have a Kingdom with many alleles at the loci analyzed and their heterozygosity and polymorphism is high of them with information