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KMID : 0613820150250111204
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Journal of Life Science
2015 Volume.25 No. 11 p.1204 ~ p.1213
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Genetic Relationships of Sandfish (Arctoscopus japonicas) from Five Different Areas of Korea and Japan Based on Mitochondrial DNA and Microsatellite Analyses
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Kim Eun-Mi
Kang Hyun-Sook
Kang Jung-Ha
Kim Dong-Gyun
An Cheul-Min
Lee Hae-Won
Park Jung-Youn
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Abstract
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A comprehensive analysis of the population structure of the sandfish (Arctoscopus japonicas), the most abundant fishery resource in the East Sea of Korea, has not been carried out, despite its importance in Korea. The present study examined the genetic diversity and differences between five populations (two Japanese and three Korean populations) of A. japonicas captured in the East Sea using both the 401 bp sequence of mitochondrial DNA (mtDNA, cytochrome b) and five microsatellite DNA (msDNA) markers. The results of the analysis using the Cyt b sequence revealed 27 haplotypes. Based on msDNA variations, the estimated expected heterozygosity (HE) in each population ranged from 0.68 (Gampo, Korea) to 0.7765 (Erimo, Japan). Pairwise FST and AMOVA tests using both the Cyt b sequence and msDNA data pointed to significant differences between the Korean and Japanese populations (mtDNA; FST=0.2648, p<0.05, msDNA; FST=0.0814, p<0.05). These results were similar to the results of UPGMA, PCA, and structure analysis. In these analyses, the five populations were assigned to two groups (Korean populations and Japanese populations). These results shed light on the genetic diversity and relationships of A. japonicas and contribute to research on the evaluation, conservation, and utilization of Korean A. japonicas as genetic resources.
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KEYWORD
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Arctoscopus japonicas, genetic relationship, microsatellite, mitochondrial DNA, sandfish
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