Мarker-assisted selection of ukrainian local chicken breeds. overview of research results

Abstract

The article presents a complex system of using of different types of molecular genetic markers in marker-assisted selection of Ukrainian local chicken breeds of egg and combined productivity. The main stages of selection work with different chicken breeds of Ukrainian selection are given considering the results of genetic variability research and analysis of productivity parameters of chicken with different genotypes by a number of DNA-markers. According to the results of the research, prospective marker systems identified by the set of quantitative trait loci, allelic variants of which are associated with productivity indicators. The formulas of perspective genotypes according to the complex of quantitative trait loci for chickens of Birkivska Barvista line A, Poltava clay line 14 and Rhode Island Red line 38 are given. For chicken breeds of combined productivity, the formulas of the desired genotypes formed on the egg or meat direction.