• 제목/요약/키워드: beef breed identification

검색결과 9건 처리시간 0.026초

모색 발현 유전자의 DNA Marker를 이용한 쇠고기 품종 판별 (Identification of Beef Breed using DNA Marker of Coat Color Genes)

  • 정의룡;정구용
    • 한국축산식품학회지
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    • 제24권4호
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    • pp.355-360
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    • 2004
  • 본 연구는 축우의 모색발현에 관여하는 MC1R, MGF 및 TYRP1 3종류의 모색 유전자의 PCR-RFLP marker를 이용하여 쇠고기 품종 판별기술을 개발하고자 수행하였다. MC1R 유전자의 104번째 아미노산을 지정하는 codon에 GGT 염기를 갖고 있는 Holstein 젖소와 Angus 육우는 제한효소 인지부위가 존재하여 537 bp증폭산물이 절단되어 329와 208bp 두개의 band가 검출되었으나 한우에서는 GTG로 G 염기가 T염기로 치환됨으로써 제한효소 인식부위가 소실되어 537 bp의 단일 bind 만이 검출되었다. 따라서, 이처럼 MC1R 모색유전자의 품종 간 특정 염기서열의 차이가 곧 특정 제한효소의 염기 서열상의 인지 부위 차이를 가져와 한우와 Holstein 젖소 및 Angus 육우 품종간의 RFLP 유전자형 출현에 확실한 차이가 인정되어 한우 품종에 특이적인 MC1R 유전자의 RFLP marker를 이용한 한우육 판별이 가능하였다. 또한, MGF 유전자의 RFLP 유전자형 출현빈도에서 한우는 r/r형이 75%로 출현율이 매우 높은 유전자형으로 분석된 반면 Hereford종은 R/R 형이 80%로 출현율이 매우 높았고 Holstein종과 Angus종은 R/r형이 100% 출현함으로써 한우와 Holstein 및 수입육우 품종간의 MGF 유전자형 출현빈도에 뚜렷한 차이가 인정되었다. 한편, TYRP1 유전자의 RFLP유전자형을 분석한 결과 모든 품종에서 동일한 RFLP type이 검출되어 TYRP1 모색 유전자를 이용한 쇠고기 품종 구별은 불가능한 것으로 나타났다. 따라서, 소 모색 관련 MC1R과 MGF 두 유전자의 품종 특이적 PCR-RFLP 유전자형은 한우육과 국내산 Holstein젖소고기 및 Angus 수입육간의 품종을 식별하는데 매우 유용한 DNA marker로 이용될 수 있음이 확인되었다.

Application of RAPD Methods in Meat for Beef Breed Identification

  • Choy, Y.H.;Oh, S.J.;Kang, J.O.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권12호
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    • pp.1655-1658
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    • 2001
  • Bovine genome samples were collected from meat of three different beef breeds (Hanwoo, Holstein and imported beef breed) that are commercially merchandized in Korean beef market. Operon B (OPB)-kits were used as random primers (3, 7, 10, 11, 12, 14) in random amplified polymorphic DNA (RAPD) method on whole genome. Each primer provided characteristic bands that were highly polymorphic. Each single primer could provide relatively efficient polymorphic band patterns among breeds. However, use of two or more primers in combination is recommended to improve resolution of experiments with higher molecular weight bands of DNA. In our experiments, OPB-11 resolved well between beef cattle breeds and Holstein. And OPB-7, 12 and 14 could be combined with OPB-11 to identify Hanwoo beef from the other two kinds of beef.

초위성체 DNA표지인자를 이용한 국내 육우집단의 품종특성 및 개체식별 체계설정 (Establishment of Genetic Characteristics and Individual Identification System Using Microsatellite loci in Domestic Beef Cattle)

  • 김상욱;장희경;김관석;김종주;전진태;윤두학;강성호;정효일;정일정
    • Journal of Animal Science and Technology
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    • 제51권4호
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    • pp.273-282
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    • 2009
  • 소 품종 판별을 위해 DNA 마커 정보는 품종을 구별하거나, 형질을 구분하는데 있어 꾸준히 이용되고 있다. 본 연구에서는 Finnzymes (DIAGNOSTICS)사의 Bovine Genotypes Kit Ver1.1/2.1을 농촌진흥청 국립축산과학원이 보유한 호주산 및 미국산 수입우 DNA 샘플 148두/국내산 육우 DNA 샘플(Holstein) 170두와 정읍지역 한우 DNA 샘플 177두에 적용하여 한우품종 식별력을 분석 하였다. Bovine Genotype Kit 1.1은 11개의 ISAG MS 마커로 이루어져 있으며, 여기에 5개 MS 마커가 추가된 ver2.1 Kit를 사용하여 집단별 유전자형 데이타를 구축하였고, MS Tool kit 분석 및 Phylip program 분석을 수행하여 Phylogenetic tree를 작성하였고, Genotype 분석 프로그램인 GeneClass 2.0 (INRA/France)을 이용하여 품종 식별력을 추정하였다. 분석 결과 95% 이상의 정확성을 가진 한우 식별력은 100%로 나타났고, 호주산 수입우 95.3%, 국내산 육우는 90%의 높은 식별력을 각각 나타내었다. 따라서 Finnzymes 사의 상용화된 16종의 MS 마커는 한우집단의 유전적 특징을 객관적으로 구분하여 수입쇠고기/젖소고기/한우쇠고기에서 간편하게 한우개체 및 품종식별에 활용될 수 있는 가능성과 특히 국내에서 비육된 육우(젖소)를 수입산 쇠고기로부터 식별할 수 있는 장점이 있을 것으로 사료된다.

Identification of Hanwoo (Native Korean Cattle Breed) Beef by Real-time PCR Using the MC1R Gene in 5 Provinces of South Korea

  • Park, Jung-Min;Shin, Jin-Ho;Lee, Dan-Won;Song, Jae-Chul;Suh, Hyung-Joo;Chang, Un-Jae;Kim, Jin-Man
    • 한국축산식품학회지
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    • 제29권6호
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    • pp.668-672
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    • 2009
  • This paper describes the differentiation between native Korean cattle (Hanwoo) and Holsteins or imported cattle using the real-time polymerase chain reaction (PCR) by targeting the sequence of the melanocortin 1 receptor (MC1R) gene. A rapid and accurate method was developed to identify Hanwoo by genotyping the DNA extracted from 295 commercial beef samples (obtained from 5 provinces in South Korea) labeled as Hanwoo beef. The results of real-time PCR assays for the proportions of Hanwoo were 84, 85.7, 95, 91.4, and 90% in the areas of Seoul, Joongbu, Youngnam, Honam, and Chungcheong, respectively. Thus, the beef samples from 295 butcher shops, which asserted to only sell Hanwoo, showed that 259 of 295 samples were of the Hanwoo beef gene type (T-type) and 36 of 295 samples were Holsteins of imported dairy cattle gene types (C-type or C/T type). In conclusion, the proportion of Hanwoo beef was 87.8% and the proportion of Holstein or imported dairy cattle meat was 12.2% (C-type: 9.8%, C/T-type: 2.4%). Generally, most consumers can not differentiate imported meat from Hanwoo beef. Therefore, Hanwoo beef and imported dairy cattle meat that is sold in butcher shops should have mandatory identification by using MC1R genotyping based on real-time PCR.

Discrimination of Korean Cattle (Hanwoo) with Imported Beef from USA Based on the SNP Markers

  • Shim, Jung-Mi;Seo, Dong-Won;Seo, Seong-Won;Kim, Jong-Joo;Min, Dong-Myung;Kim, Ik-Chul;Jeon, Jin-Tae;Lee, Jun-Heon
    • 한국축산식품학회지
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    • 제30권6호
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    • pp.918-922
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    • 2010
  • Due to the large amount of beef imported from the USA to Korea, Korean consumers have become increasingly interested in the country of origin since it can affect market prices. Previously, Bos indicus and Bos taurus-specific markers were developed for the purpose of cattle breed identification, specifically discrimination of Australian beef. In this study, six SNP markers derived from Illumina 50K bovine SNP chip data were used for the discrimination between Korean cattle (Hanwoo) and imported beef from USA. PCR-RFLP genotyping methods were also developed, which indicates that these markers can be applied relatively easily compared to other markers. Taking into account a discrimination rate of 55% based on MC1R marker between Hanwoo and imported beef from USA, two additional markers, SNPs 23803 and 34776, were ideal and resulted in probability of identification of 0.942 and probability of misjudgment of 0.03. Therefore, the markers developed in this study can greatly contribute to the correct discrimination between beef from USA and Hanwoo beef.

Identification of the SNP (Single Necleotide Polymorphism) of the Stearoyl-CoA Desaturase (SCD) Associated with Unsaturated Fatty Acid in Hanwoo (Korean Cattle)

  • Oh, Dong-Yep;Lee, Yoon-Seok;Yeo, Jung-Sou
    • Asian-Australasian Journal of Animal Sciences
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    • 제24권6호
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    • pp.757-765
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    • 2011
  • Fatty acid composition of beef intramuscular tissue is an important trait because high proportions of mono-unsaturated fatty acid are related to favorable beef flavor. In this study, we investigated the effects of genetic factors, such as stearoyl-CoA desaturase (SCD), on beef carcass traits, including fatty acid composition, in the Hanwoo. Analysis of fatty acids in Hanwoo was performed using a breed raised in Gyeonbuk province (n = 395). Compared to the homozygote, the GA, CT, and CT genotypes of exon 5 in the SCD polymorphism showed a higher content of oleic acid (p<0.05) and higher contents of mono-unsaturated fatty acid (p<0.05) and marbling scores (p<0.05) in intramuscular fat. Results of haplotype analysis showed a significant presence of unsaturated fatty acids and marbling score in the $ht1^*ht2$ and $ht2^*ht2$ groups (p<0.05). Furthermore, haplotype effects more powerful than a single gene were also observed. These ht1 and ht2 types also showed a significant difference in unsaturated fatty acids and marbling score, affecting beef flavor in the Hanwoo groups. Therefore, it can be inferred that the ht1 and ht2 types might be valuable new markers for use in improvement of Hanwoo.

Identification of Genomic Differences between Hanwoo and Holstein Breeds Using the Illumina Bovine SNP50 BeadChip

  • Melka, Hailu Dadi;Jeon, Eun-Kyeong;Kim, Sang-Wook;Han, James-Bond;Yoon, Du-Hak;Kim, Kwan-Suk
    • Genomics & Informatics
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    • 제9권2호
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    • pp.69-73
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    • 2011
  • The use of genomic information in genomic selection programs for dairy and beef cattle breeds has become a reality in recent years. In this investigation, we analyzed single-nucleotide polymorphisms (SNPs) for Hanwoo (n=50) and Holstein (n=50) breeds using the Illumina Bovine SNP50 BeadChip to facilitate genomic selection and utilization of the Hanwoo breed in Korea. Analysis of the entire genomes showed different spectra of SNP frequencies for Hanwoo and Holstein cattle. The study revealed a highly significant (p<0.001) difference between Hanwoo and Holstein cattle in minor allele frequency (MAF). The average MAFs were $0.19{\pm}0.16$ and $0.22{\pm}0.16$ for Hanwoo and Holstein, respectively. From the total of 52,337 SNPs that were successfully identified, about 72% and 79% were polymorphic in Hanwoos and Holsteins, respectively. Polymorphic and fixed SNPs were not distributed uniformly across the chromosomes within breeds or between the two breeds. The number of fixed SNPs on all chromosomes was higher in Hanwoo cattle, reflecting the genetic uniqueness of the Hanwoo breed. In general, the rate of polymorphisms detected in these two breeds suggests that the SNPs can be used for different applications, such as whole-genome association and comparative genetic studies, and are a helpful tool in developing breed identification genetic markers.

IDENTIFICATION OF THE PREFERENCE PATTERNS OF DIFFERENT BREEDS OF SHEEP FOR CONSUMPTION IN SAUDI ARABIA

  • Abouheif, M.A.;Abdo, G.M.;Basmaeil, S.M.;Alsobayel, A.A.
    • Asian-Australasian Journal of Animal Sciences
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    • 제2권2호
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    • pp.129-132
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    • 1989
  • Mutton was the meat of choice among the Saudi Arabian citizens in Riyadh Metropolitan area, 1986-1987, followed by chicken, camel meat, fish and beef. The desirable taste of mutton that represented 68% of the total respondents was the main reason for its preference to other meats. The study also showed that Najdi sheep, which is the predominant local breed, enjoy a priority in its meat consumption among the other indigenous and exogenous breeds of sheep in the central region of the Kingdom. A loyalty to the Najdi sheep was witnessed even when the unit price was assumed to be doubled. Purchasing Najdi sheep for non-family consumption had dropped, although still ranked first among the breeds of sheep readily available in the local markets. The results also showed that, 41% of the sample individuals purchased at least one sheep per family per month, and more consumption of mutton took place during the winter months than during the summer.

한국 재래품종과 외래품종의 구별을 위한 초위성체 마커의 개발 (Development of Microsatellite Markers for Discriminating Native Korean and Imported Cattle Breeds)

  • 김승창;조창연;노희종;연성흠;최성복
    • 생명과학회지
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    • 제27권4호
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    • pp.464-470
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    • 2017
  • 성염색체에 위치하는 5 개의 초위성체 마커(INRA30, TGLA325, UMN0803, UMN0905, UMN0929) 를 이용하여 재래소 3품종과 외래소 7품종(칡소, 한우, 제주흑우, 홀스타인, 일본화우, 샤롤레, 앵거스, 헤어포드, 시멘탈, 한우X 샤롤레 교잡종)의 유전적 특징을 확인하였다. 상업적으로 판매되는 소고기의 잘못된 원산지 표기를 통해 부당한 경제적 이득을 취하고자 하는 문제를 해결하기 위한 방법으로 소고기 샘플을 빠르고 저비용으로 확인 하기 위한 방법으로 사용하기 위해 좌위 또는 품종 특이적 대립유전자를 탐색하고 좌위별 대립유전자수, 대립유전자빈도, 이형접합도 그리고 다형정보량(PIC)을 구하여 이들 10품종의 유전적 다양성을 평가하였다. STRUCTURE 분석을 통한 군락의 분류 및 유전적 균일성 분석에서 재래소 품종과 외래소 품종으로 두개의 주요 그룹으로 나뉘어진다. 이러한 결과들은 재래소와 외래소 품종의 특이적인 유전적 차이를 나타낸다. 또한 Nei's 표준 유전적 거리로 나타난 neighbor-joining tree에서도 독립적인 계통유전학적인 위치를 보여주었다. 이러한 결과는 국내 재래종과 외래품종 사이의 유전적 거리, 품종의 역사 및 그들의 지리적 기원 사이에 명백한 차이를 나타내는 증거로 사료된다. 이러한 결과들로 이들 성염색체의 초위성체 마커들에 의해 소 품종들의 유전적 다양성과 연관성은 과학적인 기초자료로 활용되고 재래소와 외래품종 소고기를 구별할 수 있는 DNA 마커들로 이용될 수 있을 것으로 사료된다. 그러므로 이러한 마커들은 효율적인 이력추적 시스템을 만드는데 사용되어 원산지 표시 위반을 억제하는데 유용할 것이다.