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PCR 기법을 이용한 한국재래산양의 α s2-casein 유전자의 특성
이상훈,상병찬,한성욱,김지애,서길웅 한국동물자원과학회 2000 한국축산학회지 Vol.42 No.4
This study was performed to provide the basic data for preservation and improvement of genetic resources according to finding genetic construction obtained from the analysis of genetic characteristics of α_(S2-) casein gene in Korean Native goat using PCR-RFLP. This study confirmed the amplified product of 1.3kb fragment obtained from the amplification of a α_(S2-)casein loci by PCR. The frequency of a α_(S2-)casein genotype in Korean Native goat was 100% for AA type and the frequencies of a α_(S2-)casein genotype in Saanen were 80 and 20% for AA and AB genotypes. The frequency of a α_(S2-)casein A allele was 1.000 in Korean Native goat, and the frequencies of a α_(S2-)casein A and B alleles were 0.900 and 0.100 in Saanen, respectively. The nucleotide sequence of a α_(S2-)casein gene of Korean Native goat was 99.0% homology with 12 nucleotide sequences difference of that of goat reported in GeneBank(AJ238965.1, AJ238967.1) and was 95.0% homology with 57 nucleotide sequences difference of that of Holstein reported in Gene Bank(M94327). Therefore, this study of molecular genetic characteristics by the analysis of genetic polymorphisms and sequences for a α_(S2-)casein gene should be used as basic data for preservation and improvement of genetic resources in Korean Native goat breeding.