ISSN : 1225-3480
본 연구에서는 높은 변이를 나타내는 6개의 Microsatellite DNA 유전표식을 이용하여 독도지역에 서식하고 있는 자연산 전복집단의 유전적 다양성 및 집단구조를 파악하여 동 서 남해의 6개 지역집단과 비교 분석하였다. 그 결과 독도지역의 유전적 다양성은 6개 지역집단보다 높게 나타났으며 유전적 거리에 의한 유연관계 분석 결과에 있어서도 이들 집단과는 독립된 집단으로 나타났다. 이러한 결과는 6개 지역집단에 있어 방류전복의 높은 혼획비율에 의한 자연산 집단의 유전적 다양성이 축소되어진 결과라고 생각되어진다. 따라서 독도집단의 높은 유전적 다양성을 유지하고 보존하기 위해서는 이 지역의 유전적 다양성을 고려한 체계화된 전복종묘의 방류가 이루어져야하며, 방류를 한 이후에도 지속적인 유전학적 모니터링이 필요하다고 생각되어진다.
This study was conducted to investigate the genetic characteristics of wild population of Pacific abalone, Haliotis discus hannai in Dokdo island. We used six polymorphic microsatellite marker to investigate the genetic diversity and population structure. The loci Hdh1321 and Hdh512 had the highest number of allele (34 and 22 respectively) and loci Hdh145 and Awb083 had the lowest (5 and 7 respectively). The mean number of allele per locus was 14.8. The average observed and expected heterozygosities were 0.664 and 0.824 respectively, and the average FIS was 0.195. We compared the population genetic parameters of Dokdo population with previously published data of the same species. At the result, the parewise FST test showed significant difference between the Dokdo population and six populations (published data), suggesting that the genetic relationship of Dokdo population was separated from six populations.
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