著者

阪本 憲司 徳永 隆史 中野 優作 池田 恵里花 高尾 清人 清水 則雄 野口 大毅 田中 麻衣 高木 基裕

出版者

アクオス研究所

雑誌

水生動物 (ISSN:24348643)

巻号頁・発行日

vol.AA2020, pp.AA2020-8, 2020 (Released:2020-10-25)

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Genetic diversity and population structure of the mudskipper, Periophthalmus modestus, were investigated using mitochondrial control region (D-loop) sequence analysis. Sixty-eight haplotypes were detected in 196 individuals collected at 19 localities [Seto Inland Sea (n=11), Pacific coast (n=4: Mie Prefecture, Ehime Prefecture, Kochi Prefecture and Chiba Prefecture), Japan Sea coast (n=1), Ariake Sea (n=1) and Okinawa Prefecture (n=2: Haneji flats and Sashiki flats)], and an average haplotype diversity of h=0.923 was obtained. Analysis of molecular variance (AMOVA) indicated that Edo R., Ibi R., Souzu R., Arita R., Kashima R., Haneji F., and Sashiki F. populations were isolated from Seto Inland Sea populations. No significant genetic differentiation was observed among Seto Inland Sea populations. These results suggest that the regional populations in Seto Inland Sea have a metapopulation structure.

著者

阪本 憲司 沖増 英治 雨村 明倫

出版者

福山大学

雑誌

福山大学附属内海生物資源研究所報告 (ISSN:09178147)

巻号頁・発行日

vol.5, pp.1-15, 1994-12

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因島近海から未知の有用微細藻類の探索を行い,35℃でも増殖可能な耐高温性を示す微細藻SY-4を分離した。SY-4は,直径5μmの単細胞で,浮遊性を示し,繊毛や鞭毛の類を持っていない。増殖は,細胞の2分裂によって行う。SY-4は,原核細胞で,同化色素にフィコシアニン,アロフィコシアニンなどの色素蛋白質を含有していることから,藍藻の一種シネコキスチス属(Synechocystis)に属することが判った。SY-4は,ナンノクロロプシス用施肥培地で,培養温度25℃,塩分濃度10‰,pH7付近の条件下で,最も良好な増殖を示した。A microalga, SY-4, capable of growing well at 35℃ was isolated from the Mekari Strait, Seto inland sea. SY-4 was characteristic of procaryote and unicellular spherocyte (4-5 μm in diameter) containing phycobiliprotein, and was classified into a blue-green alga (cyanobacterium), Synechocystis. SY-4 grew autotrophically and utilized ammonium sulfate more efficiently than sodium nitrate. Its optimum temperature, salinity and pH for growth were 25℃, 10‰ and 7, respectively