Emine ŞAHİN, TAKİ KARSLI, CENGİZ ELMACI, MURAT SONER BALCIOĞLU

Beta-lactoglobulin gene types in Turkish fat-tailed sheep breeds

β-laktoglobulin geninin genetik polimorfizmi Türkiye yağlı kuyruklu koyun ırklarının 182’sinde PCR-RFLP metodu kullanılarak incelenmiştir. Çalışmada, β-laktoglobulin lokusunun iki alleli (A ve B) ve üç genotipi (AA, AB ve BB) gözlenmiştir. β-laktoglobulin lokusundaki en yaygın genotip AB genotipidir. A allelinin en yüksek frekansı 0.7188 olarak Tuj ırkında belirlenmiştir. Mevcut çalışmanın sonuçları, kullanılan Türk yağlı kuyruklu koyun ırklarında genetik polimorfizmin varlığını göstermiştir.

Anahtar Kelimeler:

koyun yetiştiriciliği, alleller, beta-laktoglobulin, ırk farklılıkları, gen ifadesi, gen frekansı, genler, genetik analizler, genetik polimorfizm, genetik çeşitlilik, genotip, lokuslar, polimeraz zincir reaksiyonu, kısıtlı fragment uzunluğu polimorfizmi, koyun ırkları, Tuj

Türk yağlı kuyruklu koyun ırklarındaki 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.

Keywords:

sheep farming, alleles, beta-lactoglobulin, breed differences, gene expression, gene frequency, genes, genetic analysis, genetic polymorphism, genetic variation, genotypes, loci, polymerase chain reaction, restriction fragment length polymorphism, sheep breeds, Tuj,

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