Rock bream (Oplegnathus fasciatus) is one of the most economically valuable fish in Korea. In recent years, artificial breeding techniques with molecular and microsatellite markers have been developed to enhance rock bream resources. Microsatellite loci to define genetic diversity were screened in rock bream (n = 30) from Jeju areas of Korea and fifteen polymorphic microsatellite loci were newly identified and analyzed. The number of alleles per locus ranged from 9 to 34 while observed and expected heterozygosity ranged from 0.600 to 1.000 and from 0.772 to 0.977, respectively. These markers will serve as a foundation for future population genetic studies and the selective breeding technology of rock bream farming.
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