Beta-lactoglobulin gene types in Turkish fat-tailed sheep breeds [Türk yaǧli{dotless} kuyruklu koyun irklari{dotless}ndaki beta-laktoglobulin gen tipleri]

The genetic polymorphism of the β-lactoglobulin gene was investigated in 182 sheep of turkish fat-tailed sheep breeds by using pcr-rflp methods. in the study,two alleles (a and b) and three genotypes (aa,bb and ab) at β-lactoglobulin locus were observed. the most common genotype at the β-lactoglobulin locus was ab. the greatest frequency of allele a was detected in tuj breed as 0.7188. results of the present study show that genetic polymorphism exists in the turkish fat-tailed sheep breed population used in this study.