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Int. J. Mol. Sci. 2012, 13(8), 10583-10593; doi:10.3390/ijms130810583
Article

Development of Microsatellite Markers for the Korean Mussel, Mytilus coruscus (Mytilidae) Using Next-Generation Sequencing

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Received: 5 June 2012; in revised form: 14 August 2012 / Accepted: 16 August 2012 / Published: 22 August 2012
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract: Mytilus coruscus (family Mytilidae) is one of the most important marine shellfish species in Korea. During the past few decades, this species has become endangered due to the loss of habitats and overfishing. Despite this species’ importance, information on its genetic background is scarce. In this study, we developed microsatellite markers for M. coruscus using next-generation sequencing. A total of 263,900 raw reads were obtained from a quarter-plate run on the 454 GS-FLX titanium platform, and 176,327 unique sequences were generated with an average length of 381 bp; 2569 (1.45%) sequences contained a minimum of five di- to tetra-nucleotide repeat motifs. Of the 51 loci screened, 46 were amplified successfully, and 22 were polymorphic among 30 individuals, with seven of trinucleotide repeats and three of tetranucleotide repeats. All loci exhibited high genetic variability, with an average of 17.32 alleles per locus, and the mean observed and expected heterozygosities were 0.67 and 0.90, respectively. In addition, cross-amplification was tested for all 22 loci in another congener species, M. galloprovincialis. None of the primer pairs resulted in effective amplification, which might be due to their high mutation rates. Our work demonstrated the utility of next-generation 454 sequencing as a method for the rapid and cost-effective identification of microsatellites. The high degree of polymorphism exhibited by the 22 newly developed microsatellites will be useful in future conservation genetic studies of this species.
Keywords: Korean mussel; Mytilus coruscus; microsatellite loci; next-generation sequencing; genetic variability Korean mussel; Mytilus coruscus; microsatellite loci; next-generation sequencing; genetic variability
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

An, H.S.; Lee, J.W. Development of Microsatellite Markers for the Korean Mussel, Mytilus coruscus (Mytilidae) Using Next-Generation Sequencing. Int. J. Mol. Sci. 2012, 13, 10583-10593.

AMA Style

An HS, Lee JW. Development of Microsatellite Markers for the Korean Mussel, Mytilus coruscus (Mytilidae) Using Next-Generation Sequencing. International Journal of Molecular Sciences. 2012; 13(8):10583-10593.

Chicago/Turabian Style

An, Hye Suck; Lee, Jang Wook. 2012. "Development of Microsatellite Markers for the Korean Mussel, Mytilus coruscus (Mytilidae) Using Next-Generation Sequencing." Int. J. Mol. Sci. 13, no. 8: 10583-10593.



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