Analysis of the Allelofund of Semi-Fine-Wool Sheep of the Pechora Population Using STR Markers

The polymorphism of microsatellites was studied in semi-fine-wool sheep in the Romney-Marsh type of the Pechora population, bred with the participation of the now extinct northern short-tailed aboriginal sheep. Evaluation of the differentiation of groups of sheep of different genesis by the frequencies of STR loci genes, identification of private alleles and cluster analysis did not allow to obtain information about the allelofund of the aboriginal sheep. Absorption crossing into an improved breed with the selection of a crossbred population according to the target standards of semi-fine-wool breeds, apparently, led to the loss of the gene pool characteristic of the northern aboriginal sheep by the Pechora sheep.