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Elucidation of the co-evolution process of mitogenome that experienced natural selection or introgression and the relevant genes in nuclear genome

Research Project

Project/Area Number 18K14802
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 45040:Ecology and environment-related
Research InstitutionLake Biwa Museum

Principal Investigator

Tabata Ryoichi  滋賀県立琵琶湖博物館, 研究部, 学芸員 (00793308)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords自然淘汰 / 浸透交雑 / 集団遺伝 / 進化 / ゲノム不和合 / 琵琶湖 / 淡水魚 / ミトコンドリアゲノム / 核ゲノム / アミノ酸 / 共進化 / 分子進化 / 遺伝子浸透 / 系統地理 / ミトゲノム
Outline of Final Research Achievements

In this study, in order to examine the interaction between the mitochondrial genome which have had the sign of natural selection or experienced introgression and the nuclear genome which is related to mitochondria of Japanese freshwater fishes, various nuclear genome analyzes (MIG-seq and RAD-seq, genome resequencing) and the whole genome sequencing were conducted.
Currently, I am continuing to analyze to extract mitochondrial-related genes. In this study, the possibility of extinction of the domestic population of Aphyocypris chinensis due to genetic disturbance, hybridization between the regional populations of catfish or Hemibarbus fish, and selectively introgression of the nuclear genome which is related to mitochondria in some freshwater fish were found.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた最終的に得られる成果は,種間(もしくは種内の離れた系統間)交雑が起きた際や種が進化した際に生じる遺伝子の挙動という生物進化の重要なメカニズムを知ることができると期待される.また,これまでに得られた核ゲノム情報から,既に多くの種類で絶滅が危惧されている日本産淡水魚類において,種間もしくは種内系統間での交雑の実態を明らかにし,保護されているような種類,逆に身近な種類のいずれでも遺伝的撹乱における絶滅など危機的な状況が現在も迫っていることを明らかにした.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (9 results) (of which Invited: 1 results) Book (1 results)

  • [Int'l Joint Research] 韓国国立洛東江生物資源館(韓国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] 韓国国立洛東江生物資源館(韓国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Large-scale hybridization of Japanese populations of Hinamoroko, Aphyocypris chinensis, with A. kikuchii introduced from Taiwan2020

    • Author(s)
      Watanabe Katsutoshi、Tabata Ryoichi、Nakajima Jun、Kobayakawa Midori、Matsuda Masanari、Takaku Kosuke、Hosoya Kazumi、Ohara Kenichi、Takagi Motohiro、Jang-Liaw Nian-Hong
    • Journal Title

      Ichthyological Research

      Volume: in press Issue: 3 Pages: 361-374

    • DOI

      10.1007/s10228-019-00730-9

    • NAID

      120006876583

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Description of a new catfish, Silurus tomodai (Siluriformes: Siluridae) from central Japan2018

    • Author(s)
      HIBINO YUSUKE、TABATA RYOICHI
    • Journal Title

      Zootaxa

      Volume: 4459 Issue: 3 Pages: 507-507

    • DOI

      10.11646/zootaxa.4459.3.5

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] タニガワナマズと東海地方産のナマズの遺伝的隔離と遺伝子流動2020

    • Author(s)
      田畑諒一・日比野友亮・福家悠介・西村俊明・渡辺勝敏・山﨑曜
    • Organizer
      第54回日本魚類学会年会(ウェブ大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] シマヒレヨシノボリ種群における遺伝的・形態的分化と遺伝子流動2020

    • Author(s)
      国松翔太・田畑諒一・佐藤健介・山﨑曜・渡辺勝敏
    • Organizer
      第54回日本魚類学会年会(ウェブ大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 西日本における淡水魚の歴史的個体群動態の種間比較2020

    • Author(s)
      大貫渓介・田畑諒一・渡辺勝敏
    • Organizer
      第54回日本魚類学会年会(ウェブ大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] ニゴイとコウライニゴイの遺伝的集団構造と系統地理2019

    • Author(s)
      田畑諒一・富永浩史・中島淳・鬼倉徳雄・Sang-Ki KIM・Jeong-Nam YU・日比野友亮・柿岡諒・渡辺勝敏. 2019
    • Organizer
      日本魚類学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 日本産ナマズ属魚類の種判定およびマイクロサテライトDNAマーカーの開発2019

    • Author(s)
      岸本 友・奥山 永・田畑諒一・伊知地 稔・勝又啓史・川内智裕・中野江一郎・高橋純一
    • Organizer
      第28回日本DNA多型学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 分子遺伝解析に基づく固有種を中心とした琵琶湖産魚類の起源2019

    • Author(s)
      田畑諒一
    • Organizer
      日本魚類学会年会(シンポジウム:古代湖における魚類の適応進化と種多様性創出)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] MIG-seq 法から推定された琵琶湖産魚類の遺伝的集団構造2018

    • Author(s)
      田畑諒一・渡辺勝敏
    • Organizer
      日本魚類学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 日本産ヒナモロコにおける遺伝的撹乱2018

    • Author(s)
      渡辺勝敏・田畑諒一・中島淳・小早川みどり・高久宏佑・細谷和海・張廖年鴻
    • Organizer
      日本魚類学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] ミャンマーの古代湖・インレー湖固有の淡水魚類Channa harcourtbutleriの起源2018

    • Author(s)
      福家悠介・Prachya Musikasinthorn・鹿野雄一・田畑諒一・松井彰子・渡辺勝敏
    • Organizer
      日本魚類学会年会
    • Related Report
      2018 Research-status Report
  • [Book] ナマズの世界へようこそ2020

    • Author(s)
      前畑 政善、田畑 諒一
    • Total Pages
      128
    • Publisher
      サンライズ出版
    • ISBN
      4883256766
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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