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トゲウオにおける適応放散をひきおこす生態要因とゲノム要因

Research Project

Project/Area Number 14F03381
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionNational Institute of Genetics

Principal Investigator

北野 潤  国立遺伝学研究所, 集団遺伝研究系, 教授 (80346105)

Co-Investigator(Kenkyū-buntansha) RAVINET MARK  国立遺伝学研究所, 集団遺伝研究系, 外国人特別研究員
RAVINET Mark  国立遺伝学研究所, 新分野創造センター, 外国人特別研究員
Project Period (FY) 2014-04-25 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2015: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2014: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordsトゲウオ / 適応放散 / 種分化 / ゲノム / 遺伝
Outline of Annual Research Achievements

祖先型の海のイトヨとして北海道厚岸産のニホンイトヨ(日本海型イトヨ)とイトヨ(イトヨ太平洋集団)のゲノムを解析し、ABC法によって分岐年代やボトルネックを推定した。さらにゲノム上で遺伝子浸透の生じている部位を同定した。また、淡水進出したイトヨについても全ゲノムを解読し、淡水進出の年代を推定するとともに、淡水イトヨに見られた適応進化の痕跡、並びに、有害変異の蓄積について解析した。また、生態解析として、安定同位体解析を行い、同署トミヨ間に見られた生態分化に関する知見を論文化した。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (5 results)

All 2016 2015 2014 Other

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

  • [Int'l Joint Research] ベルン大学(スイス)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Trophic niche differentiation and phenotypic divergence among cryptic species of Japanese ninespine stickleback.2016

    • Author(s)
      Ravinet, M., Ishikawa, A., and Kitano, J.
    • Journal Title

      Evolutionary Ecology Research

      Volume: in press

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Comparative Analysis of Japanese Three-Spined Stickleback Clades Reveals the Pacific Ocean Lineage Has Adapted to Freshwater Environments while the Japan Sea Has Not2014

    • Author(s)
      Ravinet M, Takeuchi N, Kume M, Mori S, Kitano J
    • Journal Title

      PLoS ONE

      Volume: 9 Issue: 12 Pages: e112404-e112404

    • DOI

      10.1371/journal.pone.0112404

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Ancestral polymorphism or recent gene flow? Insight from comparative genome scans2015

    • Author(s)
      Ravinet, M, Yoshida, K & Kitano J
    • Organizer
      ESEB 2015
    • Place of Presentation
      Lausanne, Switzerland
    • Year and Date
      2015-08-10 – 2015-08-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Speciation-with-gene-flow after strong intrinsic isolation has already evolved2015

    • Author(s)
      Ravinet, M, Yoshida, K & Kitano J
    • Organizer
      Gordon Research Conference Speciation 2015
    • Place of Presentation
      Ventura, CA
    • Year and Date
      2015-03-15 – 2015-03-20
    • Related Report
      2014 Annual Research Report

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Published: 2015-01-22   Modified: 2024-03-26  

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