Cytochrome c oxidase subunit I gene in Thalassiosira nordenskioeldii strains inhabiting in cold and warm sea waters

  • UCHIDA Yoshie
    Department of Food Business, School of Health and Human Life, Nagoya Bunri University
  • UCHIDA Hidenobu
    Department of Food Business, School of Health and Human Life, Nagoya Bunri University Research Institute for Integrated Science, Kanagawa University
  • SATO Takeshi
    Research Institute for Integrated Science, Kanagawa University Department of Science, Faculty of Science, Kanagawa University
  • NISHIMOTO Yuko
    Department of Science, Faculty of Science, Kanagawa University
  • TSUTSUMI Koichi
    Department of Food Business, School of Health and Human Life, Nagoya Bunri University
  • OI Takao
    Graduate School of Bioagricultural Sciences, Nagoya University
  • TANIGUCHI Mitsutaka
    Graduate School of Bioagricultural Sciences, Nagoya University
  • INOUE Kazuhito
    Research Institute for Integrated Science, Kanagawa University Department of Biochemistry and Biotechnology, Faculty of Chemistry and Biochemistry, Kanagawa University
  • SUZUKI Yoshihiro
    Research Institute for Integrated Science, Kanagawa University Department of Science, Faculty of Science, Kanagawa University

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タイトル別名
  • Cytochrome c oxidase subunit I gene in <i>Thalassiosira nordenskioeldii</i> strains inhabiting in cold and warm sea waters

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<p>From the biota beneath the sea ice in Lake Saroma, which is adjacent to Sea of Okhotsk, a diatom culture of Saroma 16 was isolated. Strutted processes and a labiate process in Saroma 16 were characteristic of those in Thalassiosira nordenskioeldii. Similarity search analysis showed that the 826-bp rbcL-3P region sequence of this strain was 100% identical to multiple sequences registered as T. nordenskioeldii in a public database. The 4305-bp PCR-amplified mitochondrial cytochrome c oxidase subunit I (COI) gene (COI)-5P region of Saroma 16 included a 1060-bp open reading frame (ORF), which was interrupted by 934-bp and 2311-bp introns that included frame-shifted ORFs encoding reverse-transcriptase (RTase)-like proteins. Previous reports showed that a strain of the same species, CNS00052, originating from the East China Sea included no introns in the COI, whereas North Atlantic Ocean strains of the same species, such as CCMP992, CCMP993, and CCMP997, included a 2.3-kb intron in the same position as Saroma 16.</p>

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