소 Y 염색체 특이 Microsatellite를 이용한 품종별 대립유전자 빈도 분석
Allele Frequency of the Bovine Y-chromosomal Microsatellite Locus in the Cattle Breeds
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참고문헌
초록
Bovine microsatellite 마커인 INRA124는 소에 있어 Y 염색체 특이 마커로서 130 및 132 bp의 두 개 대립유전자를 가지고 있는데, Bos taurus 특이 대립유전자는 132 bp이고, Bos indicus 특이대립유전자는 130 bp이다. 이번 연구는 이 유전좌위를 이용하여 한우집단에 대한 Bos taurus 및 Bos indicus 유래의 대립유전자 분석을 통하여 한우의 유전적 특성을 이해하고자 하였다. 동북아시아, 중국내륙, 유럽, 인도 및 아프리카 유래의 20개 소 품종 822두의 수컷을 공시하여 분석해 본 결과, 유럽계통, 일본 화우 및 한우에서는 Bos indicus 유래의 대립유전자는 전혀 검출되지 않았으며, 인도 및 아프리카 유래의 Bos indicus 품종에서는 132 bp의 대립유전자가 전혀 검출되지 않았다. 한우, 브라만 및 샤롤레의 교잡우 집단(CBK)에서는 Bos indicus 특이 대립유전자인 130 bp가 0.19의 빈도로 검출되었고, 중국내륙 품종인 노서우 및 난양우는 각각 0.46 및 0.29의 빈도로 검출되었다. 이로서 한우의 기원은 기존 혼합설과 달리 유럽계통의 Bos taurus만으로 기원하였을 가능성을 제기한다.
Abstract
The INRA124 is a bovine Y-chromosomal specific microsatellite locus that has been revealed a polymorphism. This locus has two alleles. The 132 bp allele is specific to cattle (humpless) of taurine origin and the 130 bp allele is specific to cattle (humped) of indicine origin. A total 822 males of 20 breeds or populations; North Eastern Asian breeds (Hanwoo, Korean Black cattle, Chik-so, CBK, Japanese Black cattle, Japanese Brown cattle, Yanbian cattle), Chinese yellow cattle (Luxi cattle, Nanyang cattle), European origin (Angus, Hereford, Charolais, Simmental, Brown swiss, Holstein, Limousin), African origin (Kavirondo zebu, White Fulani, crossbreed of N'Dama and Boran), Indian origin (Sahiwal) were characterized the distribution of alleles using INRA124 locus. Any individuals of European, Japanese origins and Hanwoo were not detected 130 bp allele, Bos indicus specific allele. Bos indicus breeds of Indian and African origins were not detected 132 bp allele, Bos taurus specific allele. CBK population that the crossbreed of Hanwoo, Brahman and Charolais showed the frequency of 0.19 in indicine specific allele. The breeds of Chinese mainland, Luxi and Nanyang cattle were detected 0.46 and 0.29 frequencies in indicine specific allele, respectively. These results suggest that Korean cattle, Hanwoo, had not been originated from a crossbred between Bos primigenius in Europe and Bos indicus in India.
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