Identification of Hanwoo and Holstein meat using MGB probe based real-time PCR associated with single nucleotide polymorphism (SNP) in Melanocortin 1 receptor (MC1R) gene

소 모색관련 MC1R 유전자의 SNP와 관련한 MGB probe에 기초한 real-time PCR을 이용한 한우육과 Holstein육의 판별

  • Park, Sung-Do (College of Veterinary Medicine, Chonnam National University) ;
  • Kim, Tae-Jung (College of Veterinary Medicine, Chonnam National University) ;
  • Lee, Jae-Il (College of Veterinary Medicine, Chonnam National University)
  • Accepted : 2005.02.05
  • Published : 2005.03.25


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 meat, we performed a single nucleotide polymorphism (SNP) analysis in Melanocortin 1 receptor (MC1R) gene using TaqMan$^{(R)}$ MGB probe-based real-time PCR. Two specific probes (one for Hanwoo and the other for Holstein and Black angus) were designed. At the 5' end of 2 TaqMan$^{(R)}$ MGB probes, 6-carboxyfluorescein (FAM) was labeled for Hanwoo, and VIC for Holstein and Black angus. As a result, Hanwoo samples showed FAM-positive signal only, whereas other samples showed VIC-positive. This result suggests that the TaqMan$^{(R)}$ MGB probe based real-time PCR technique would be very accurate, easy and reproducible method to discriminate between Hanwoo meat and Holstein/Black angus meat.


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