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ISSN : 1225-3480
본 연구는 우리나라의 주요양식 품종인 북방전복을 대상으로 지금까지 전복류에서는 사용되지 않았던 mtDNA의protein coding 영역 ND2, ND5, ND4, ND4L, ND6, ND1의 6개영역과 protein noncoding 영역인 12SrRNA(ribosomal RNA) 을 포함해 총 7개 영역을 이용하여 각 영역의 유전적 변이성 및 개체간 유전적 유연관계 등을 분석하여각 영역별 특성을 파악하고 이러한 특성을 고려하여 유전학적분석에 적합한 분자유전마커를 개발하였다. 유전적 변이성은ND4 영역 (Haplotype diversity = 1.000, Nucleotidediversity = 0.010823) 이 가장 높게 나타났으며, 개체간의유전적 차이는 ND2 및 ND1 영역이 각각 90% 및 87%로 유의적으로 명확히 구분할 수 있었다. 따라서 유전적 변이성이가장 높은 ND4 영역과 영역내의 클러스터 간의 유전적 차이가 명확한 ND2 및 ND1 영역을 복합적으로 활용할 경우 북방전복의 집단유전학 및 계통분류학 분석에 유용한 분자유전마커로 사용할 수 있을 것이라 생각된다.
The seven mitochondrial DNA regions (ND2, ND5, ND4, ND4L, ND6, ND1 and 12SrRNA) of Haliotis discus hannai were examined to estimate the availability as a genetic marker for the study of population genetic. The region with the highest genetic variation was ND4 (Haplotype diversity = 1.0000, Nucleotide diversity = 0.0108). On the other hand, ND2 and ND1 regions have significantly appeared genetic divergence between clusters (divergence of 90% and 87%). Also, pairwise FST between clusters within ND2 and ND1 regions showed high values; 0.4061 (P = 0.0000), 0.4805 (P = 0.0000) respectively. Therefore we can infer that it is the most efficient and accurate way to analyze the region of ND4 with the highest variation in addition to the regions of ND2 and ND1, which formed clusters with high bootstrap value, for study of population genetic structure in this species.
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