Identification of pituitary-specific transcription factor-1 (PIT-1) and leptin gene (LEP) polymorphism of Holstein cattle reared in Turkey

Bayram D. , Arslan K. , Akyüz B. , İşcan K. M.

ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI, cilt.64, ss.337-343, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 64
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1501/vetfak_0000002818
  • Sayfa Sayıları: ss.337-343


Purpose of this study was to examine leptin (LEP) and pituitary-specific transcription factor-1 (Pit-I) gene polymorphisms in Holstein cattle (n= 352) in Turkey. In order to determine the Pit-I-HinfI and LEP-Sau3AI polymorphisms, polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) were performed. A 600 bp length fragment of Pit-I and a 422 bp length fragment of LEP were amplified. In this study, two types of alleles, A and B, for both of the Pit-I and LEP genes were observed. The highest frequencies of the alleles were estimated, and were the B allele (0.68) for the Pit-I gene and the A allele (0.87) for the LEP gene. According to the results of the chi-square test, a significant deviation from the Hardy-Weinberg equilibrium was determined for both of these genes in the investigated breed (in the same order; X-2: 40.75, p<0.001and X-2: 8.4, p< 0.01).