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タイトル: Genetic diversity of Sicyopterus japonicus as revealed by mitochondrial DNA sequencing
著者: Watanabe, Shun
Iida, Midori
Kimura, Yobuo
Feunteun, Eric
Tsukamoto, Katsumi
キーワード: Sicyopterus japonicus
amphidromous
mtDNA
control region
population structure
larval migration
dispersal
発行日: 2006年6月25日
出版者: International Coastal Research Center, Ocean Research Institute, the University of Tokyo
掲載誌情報: Coastal marine science. Vol.30No.2, 2006.6, pp. 473-479
抄録: To examine the genetic diversity of Sicyopterus japonicus, 448 sites of the control region of the mitochondrial DNA were analyzed in 77 specimens from the four localities of Okinawa, Kochi, Wakayama, and Shizuoka in Japan. A total of 74 haplotypes were found in the individuals examined. The same haplotypes occurred in Okinawa and Kochi, Kochi and Wakayama, and two specimens in Wakayama. The average sequence in genetic characteristics within localities varied from 1.7% in Kochi, 1.6% in Wakayama to 1.4% in Okinawa. There was no significant difference in genetic characteristics among the three locations of Wakayama, Kochi, and Okinawa (10,000 times permutation test, P>0.05). The number of specimens from Shizuoka was too small to compare to the other three locations. The neighbor-joining tree of the mitochondrial DNA haplotypes for all specimens constructed from the Kimura's two-parameter distances suggested no evidence of genetic subdivision of S. japonicus. These results suggested that this species has a single panmictic population and their larvae probably have a high dispersal ability during their oceanic stage.
URI: http://hdl.handle.net/2261/5673
ISSN: 13493000
出現カテゴリ:Coastal Marine Science
Coastal Marine Science

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