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Toward a taxonomic revision of host sea anemones of clownfishes

Research Project

Project/Area Number 17K07547
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biodiversity/Systematics
Research InstitutionNatural History Museum and Institute, Chiba

Principal Investigator

Yanagi Kensuke  千葉県立中央博物館, その他部局等, 研究員(移行) (00321852)

Co-Investigator(Kenkyū-buntansha) Reimer J・D  琉球大学, 理学部, 准教授 (20452956)
磯村 尚子  沖縄工業高等専門学校, 生物資源工学科, 准教授 (90376989)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywordsイソギンチャク / クマノミ / 共生 / 分類 / DNA / Entacmaea / 宿主 / 共生関係 / 分類学 / OTU
Outline of Final Research Achievements

With the aim of resolving the confusion in the classification of sea anemones that coexist with anemone fishes, we investigated more than 300 individuals of sea anemones which coexist with anemone fishes from about 80 points in Japanese coast during 2017 to 2021. We observed species of anemone fish and various external morphology of sea anemones, at the same time, we collected several tentacles from observed sea anemones for the DNA analysis. These data clarified that these sea anemones are classified into three systematically independent family-level groups, which are different from traditionally thought. Species-level classification was difficult to determine from partial DNA sequences, but more detailed analysis of Entacmaea species (bubble-tip anemones) revealed that Japanese species contained at least three species.

Academic Significance and Societal Importance of the Research Achievements

クマノミ類と共生するイソギンチャク類については、学術的な観点のみならず一般の人々にも大きな関心を持たれてきたが、その分類は非常に混乱しており、正しく種を認識することが不可能に近い状態だった。本研究の結果、従来の分類は「種レベル」の分類のみならず「科レベル」の分類についても大きく見直す必要があることが明らかとなった。このことは、イソギンチャク類の系統分類学的研究の発展に資するのみならず、共生関係の進化・生態学的研究においてもその基礎となり、今後既往の生態学的研究を見直すきっかけとなるだろう。同時にイソギンチャクの保全を考える上で慎重なデータ収集計画を立てる必要があることを強く示唆するものである。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2019 2017 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (3 results)

  • [Int'l Joint Research] American Museum of Natural History(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] American Museum of Natural History/Auburn University/University of Houston(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] The American Museum of Natural History(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Phylogenetic relationships among the clownfish-hosting sea anemones2019

    • Author(s)
      Titus, B.J., Benedict, C., Laroche, R., Luciana, Gusmao, C., Deusen, V.V., Chiodo, T., Meyer, C.P., Berumen, M.L., Bartholomew, A., Yanagi, K., Reimer, J.D., Fujii, T., Daly, M., Rodriguez, E.
    • Journal Title

      Molecular phylogenetics and evolution

      Volume: 139 Pages: 106526-106526

    • DOI

      10.1016/j.ympev.2019.106526

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 神奈川県逗子市小坪大崎で確認された最北限のサンゴイソギンチャク個体群2019

    • Author(s)
      大久保奈弥・田所 悟・松永 敬・柳 研介
    • Journal Title

      神奈川自然誌資料

      Volume: (40) Pages: 25-28

    • NAID

      130007699839

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] クマノミ類の宿主イソギンチャク類の分類の現状と展望2019

    • Author(s)
      柳 研介・James Davis Rimer・磯村尚子・藤井琢磨・Benjamin Taitus・Estefania Rodriguez
    • Organizer
      日本本動物分類学会第55回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 見直しが進むクマノミ類の宿主イソギンチャク類の分類2019

    • Author(s)
      柳 研介・James Davis Rimer・磯村尚子・藤井琢磨・Benjamin Taitus・Estefania Rodriguez
    • Organizer
      2019年日本ベントス学会・日本プランクトン学会合同大会
    • Related Report
      2019 Research-status Report
  • [Presentation] クマノミの住むイソギンチャクは何もの?2017

    • Author(s)
      柳 研介・James Reimer・磯村尚子・藤井琢磨
    • Organizer
      第13回日本刺胞動物・有櫛動物研究談話会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2023-01-30  

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