Discrimination of Hanwoo from Holstein/black Angus meat by PCR-RFLP of MC1R gene

MC1R 유전자의 PCR-RFLP를 이용한 한우육과 젖소육/black Angus 수입육의 구분

  • Kim, Tae-Jung (College of Veterinary Medicine, Chonnam National University) ;
  • Lee, Jae-Il (College of Veterinary Medicine, Chonnam National University)
  • Accepted : 2005.08.22
  • Published : 2005.09.22

Abstract

The melanocortin 1 receptor (MC1R) plays an important role in regulation of melanin pigment synthesis within mammalian melanocytes. Mutations within the gene encoding MC1R have been shown to explain coat color variations within several mammalian species including cattle. To develope a rapid and accurate method for the identification of Hanwoo, we performed a modified PCR-RFLP analysis of MC1R gene using single nucleotide polymorphism (SNP) within MC1R as a target. A size of 538 bp (537 bp for Hanwoo) was amplified by PCR, digested with Hpa II, and electrophoresed on a 1.5% agarose gel. A PCR product from Hanwoo showed a single band of 537 bp, whereas two fragments of 328 bp and 210 bp were detected in both Holstein and Black angus. The current result suggests that the PCR-RFLP using our primers and enzyme digestion system would be very accurate, easy and reproducible method to discriminate between Hanwoo and Holstein/Black angus meat.

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