Milk protein polymorphisms in Holstein cattle

Oner Y., Elmaci C.

INTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY, cilt.59, sa.3, ss.180-182, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 59 Sayı: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1111/j.1471-0307.2006.00259.x
  • Dergi Adı: INTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.180-182
  • Anahtar Kelimeler: genetic polymorphism, Holstein cattle, milk protein, GENETIC-POLYMORPHISM, BETA-LACTOGLOBULIN, DAIRY-CATTLE, PRODUCTION TRAITS, COWS MILK, CASEIN, VARIANTS, ASSOCIATION, LOCI
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Milk samples from 203 Holstein cows were phenotyped for genetic variants alpha(s1)-casein, beta-casein, kappa-casein and beta-lactoglobulin using starch-gel electrophoresis. All of the four milk protein loci exhibited polymorphism with allele frequencies of 0.862 +/- 0.017 for alpha(s1)-casein B, 0.966 +/- 0.0009 for beta-casein A, 0.712 +/- 0.0224 for kappa-casein A and 0.567 +/- 0.0245 for beta-lactoglobulin B. The mean heterozygosity estimated over all the four milk protein loci was 0.3015. Genetic equilibrium was observed among all of the loci investigated, except kappa-casein. Chi-squared tests revealed that there was no significant linkage among studied milk protein phenotypes.