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학술논문

모색 발현 유전자의 DNA Marker를 이용한 쇠고기 품종 판별

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영문명
발행기관
한국축산식품학회
저자명
정의룡 정구용
간행물 정보
『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제24권 제4호, 355~360쪽, 전체 6쪽
주제분류
농수해양 > 식품과학
파일형태
PDF
발행일자
2004.12.31
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영문 초록

In Korean beef market, one of the major problems is mislabeling or fraudulent distribution of Holstein dairy meat or imported beef as domestic Hanwoo meat. Therefore, there has been a great need for a development of technology to identify beef breeds in meat and meat products. This study was carried out to develop the accurate and reliable method for the identification of beef breed using PCR-RFLP marker of MC1R, MGF and TYRP1 genes affecting coat colors in cattle. A single base substitution (G→T transition) at the codon for amino acid position 104 of MC1R gene was identified between Hanwoo and Holstein and Angus breeds. The change at this position creates Msp I restriction site in Holstein and Angus, but not in Hanwoo. When the DNA amplified products (537bp) was digested with Msp I, Hanwoo meat showed a single band of 537bp, while two fragments of 329bp and 208bp were observed in Holstein meat and Angus breed, respectively. Thus, breed-specific RFLP marker in the MC1R gene can be used to distinguish between Hanwoo meat and Holstein and Angus meats. In the RFLP genotype of MGF gene, the frequency of r/r type was 75% in Hanwoo, whereas the frequency of R/R was 80% in Hereford breed. Holstein and Angus breeds showed 100% for R/r type. Therefore, Hanwoo meat showed significant difference in the MGF genotype frequencies compared with those of Holstein meat and imported beef cattle breeds. However, TYRP1 gene showed the same genotype in all breeds examined. Thus, this TYRP1 gene can not be used as a molecular marker for breed identification. As a consequence, we suggest that RFLP markers of the MC1R and MGF coat color genes could be used as DNA marker for identification of Hanwoo meat from Holstein and imported meats.

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APA

정의룡,정구용. (2004).모색 발현 유전자의 DNA Marker를 이용한 쇠고기 품종 판별. Food Science of Animal Resources, 24 (4), 355-360

MLA

정의룡,정구용. "모색 발현 유전자의 DNA Marker를 이용한 쇠고기 품종 판별." Food Science of Animal Resources, 24.4(2004): 355-360

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