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Genome evolution in novel hybrid populations

Research Project

Project/Area Number 18H02493
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionThe University of Tokyo

Principal Investigator

Hirase Shotaro  東京大学, 大学院農学生命科学研究科(農学部), 助教 (90635559)

Co-Investigator(Kenkyū-buntansha) 岩崎 渉  東京大学, 大学院理学系研究科(理学部), 准教授 (50545019)
小北 智之  福井県立大学, 海洋生物資源学部, 准教授 (60372835)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywords二次的接触帯 / 交雑 / ゲノム不和合 / 雑種種分化 / 全ゲノム / ミトコンドリアゲノム / 日本海 / 東シナ海 / 交雑帯 / 系統地理 / 核ゲノム / 集団ゲノミクス / mito-nuclear discordance / アゴハゼ / シロウオ / de novo genome assembly / Mito-nuclear discordance / 表現型
Outline of Final Research Achievements

Speciation occurs when one population separates into two which are reproductively isolated; hybridization between these populations is recognized as a process that prevents speciation. Recently, however, hybridization between divergent populations has been recognized as a powerful speciation mechanism and a driving force in generating biodiversity. In this study, to understand the evolutionary process after hybridization, we performed population genomics for the hybrid zone between two divergent lineages, Pacific Ocean and Sea of Japan lineages, of Japanese coastal gobies and demonstrated genomic and phenotypic features of populations in these zones.

Academic Significance and Societal Importance of the Research Achievements

遺伝的に大きく異なる系統が交雑した瞬間にゲノムでは何が起こるのか?本研究の成果は、このような問いに答えるための重要な情報を提供する。本研究は、日本沿岸の生物集団における過去の地理的隔離とその後の二次的接触・交雑をモデルとしている。これらの成果は、日本列島の豊かな生物多様性が、地理的隔離と交雑というダイナミックな進化プロセスを背景として成立してきた可能性を示し、日本沿岸の生物多様性のホットスポットとしての重要性を強調するものである。

Report

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

    (16 results)

All 2021 2020 2019 2018 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Integrative genomic phylogeography reveals signs of mitonuclear incompatibility in a natural hybrid goby population2020

    • Author(s)
      Shotaro Hirase, Ayumi Tezuka, Atsushi J. Nagano, Mana Sato, Sho Hosoya, Kiyoshi Kikuchi, Wataru Iwasaki
    • Journal Title

      Evolution

      Volume: 75 Issue: 1 Pages: 176-194

    • DOI

      10.1111/evo.14120

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Complex phylogeographic patterns in the intertidal goby Chaenogobius annularis around Kyushu Island as a boundary zone of three different seas2020

    • Author(s)
      Shuya Kato, Seiji Arakaki, Kiyoshi Kikuchi, Shotaro Hirase
    • Journal Title

      Ichthyological Research

      Volume: 68 Issue: 1 Pages: 86-100

    • DOI

      10.1007/s10228-020-00772-4

    • NAID

      40022462082

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Genetic isolation by distance in the yellowfin goby populations revealed by RAD sequencing2020

    • Author(s)
      Hirase S, Tezuka A, Nagano JA, Kikuchi K, Iwasaki W
    • Journal Title

      Ichthyological Research

      Volume: 67 Issue: 1 Pages: 98-104

    • DOI

      10.1007/s10228-019-00709-6

    • NAID

      40022132569

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Genomic and phenotypic consequences of two independent secondary contact zones between allopatric lineages of the anadromous ice goby Leucopsarion petersii2020

    • Author(s)
      Hirase S, Kokita T, Nagano JA, Kikuchi K
    • Journal Title

      Heredity

      Volume: 124 Issue: 1 Pages: 223-235

    • DOI

      10.1038/s41437-019-0239-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Mito-nuclear discordanceを示すアゴハゼ東シナ海系統の形成史2021

    • Author(s)
      加藤 柊也、新垣 誠司、永野 惇、菊池 潔、平瀬 祥太朗
    • Organizer
      令和3年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] シロウオ日本海系統における緯度適応と集団ゲノミクス解析2021

    • Author(s)
      平瀬 祥太朗、菊池 潔、永野 惇、小北 智之
    • Organizer
      令和3年度日本水産学会春季大会(ウェブ大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] シロウオ日本海系統における遺伝子流動下での局所適応2020

    • Author(s)
      平瀬 祥太朗、菊池 潔、永野 惇、小北 智之
    • Organizer
      第53回日本魚類学会年会(ウェブ大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 九州沿岸に着目したドロメとアゴハゼの比較集団ゲノミクス解析2020

    • Author(s)
      加藤 柊也、新垣 誠司、永野 惇、菊池 潔、平瀬 祥太朗
    • Organizer
      第53回日本魚類学会年会(ウェブ大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 九州周辺におけるアゴハゼの分子系統地理2019

    • Author(s)
      加藤柊也, 新垣誠司, 菊池 潔, 平瀬祥太朗
    • Organizer
      第52回魚類学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] アゴハゼ2グループの交雑集団の全ゲノム解析2019

    • Author(s)
      平瀬祥太朗
    • Organizer
      第66回 日本生態学会大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] シロウオの五島集団の高い遺伝的固有性2019

    • Author(s)
      佐藤耕平・小北智之・永野 惇・菊池 潔・平瀬祥太朗
    • Organizer
      平成31年度 日本水産学会春季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Mitonuclear incompatibilities promoted mitogenome evolution2018

    • Author(s)
      Shotaro Hirase, Ayumi Tezuka, Atsushi J. Nagano, Mana Sato, Sho Hosoya, Kiyoshi Kikuchi, Wataru Iwasaki
    • Organizer
      Stickleback2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mitonuclear incompatibilities promoted mitogenome evolution in a hybrid population2018

    • Author(s)
      Shotaro Hirase, Ayumi Tezuka, Atsushi J. Nagano, Mana Sato, Sho Hosoya, Kiyoshi Kikuchi, Wataru Iwasaki
    • Organizer
      Evolution2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mitonuclear incompatibilities promoted mitogenome evolution in a hybrid population2018

    • Author(s)
      Shotaro Hirase, Ayumi Tezuka, Atsushi J. Nagano, Mana Sato, Sho Hosoya, Kiyoshi Kikuchi, Wataru Iwasaki
    • Organizer
      The 46th Naito Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] “進化の実験場”としての日本列島:魚類の交雑集団のゲノミクス2018

    • Author(s)
      平瀬祥太朗
    • Organizer
      第51回魚類学会年会 創立50周年記念シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Remarks] ゲノム系統地理学が明らかにした交雑によるミトコンドリアゲノムの進化

    • URL

      https://www.a.u-tokyo.ac.jp/topics/topics_20201112-1.html

    • Related Report
      2020 Annual Research Report

URL: 

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

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