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Hybridization and speciation of Acropora - Elucidation from fertility of hybrids and multi specific synchronous spawning -

Research Project

Project/Area Number 26440225
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biodiversity/Systematics
Research InstitutionOkinawa National College of Technology

Principal Investigator

Isomura Naoko  沖縄工業高等専門学校, 生物資源工学科, 准教授 (90376989)

Co-Investigator(Kenkyū-buntansha) 深見 裕伸  宮崎大学, 農学部, 准教授 (50402756)
守田 昌哉  琉球大学, 熱帯生物圏研究センター, 准教授 (80535302)
Research Collaborator Iwao Kenji  阿嘉島臨海研究所, 研究員
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords雑種体の妊性 / 雑種第二代 / 多種同調産卵 / 自家受精 / 雑種の妊性 / 精子選択 / 遺伝子浸透 / 雑種体の産卵 / 多種同調産卵の地域差
Outline of Final Research Achievements

We elucidated hybridization and speciation of Acropora using Acropora intermedia and A. florida. Colonies with morphologies intermediate (suspected hybrids) between two target species were found in the fields where multi specific synchronous spawning occurred. These three species, A. interemedia, A. florida and suspected hybrids, may perform introgression each other because common haplotypes were found among them. Real F1 hybrids which were produced artificially were fertile, and they could cross both other hybrid and parent species. Furthermore, more than 90% self-fertilization was achieved in a real F1 hybrid. These results suggest that some products of interspecific hybridization may persist as the offspring of self-fertilizing F1 hybrids in the field where multi specific synchronous spawning occurs.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (16 results)

All 2016 2015 2014 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Remarks (3 results)

  • [Journal Article] The reef building coral Acropora conditionally hybridize under sperm limitation2016

    • Author(s)
      Kitanobo S, Isomura N, Fukami H, Iwao K, Morita M
    • Journal Title

      Biology Letters

      Volume: - Issue: 8 Pages: 20160511-20160511

    • DOI

      10.1098/rsbl.2016.0511

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Spawning and fertility of F1 hybrids of the coral genus Acropora in the Indo-Pacific2016

    • Author(s)
      Isomura N, Iwao K, Morita M, Fukami H
    • Journal Title

      Coral Reefs

      Volume: - Issue: 3 Pages: 851-855

    • DOI

      10.1007/s00338-016-1461-9

    • Related Report
      2016 Annual Research Report 2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Influence of sperm dilution and gamete contact time on the fertilization rate of scleractinian corals2015

    • Author(s)
      Nozawa Y, Isomura N, Fukami H
    • Journal Title

      Coral Reefs

      Volume: 34 Issue: 4 Pages: 1199-1206

    • DOI

      10.1007/s00338-015-1338-3

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 阿嘉島における ミドリイシ属サンゴの雑種種分化2015

    • Author(s)
      磯村尚子・深見裕伸
    • Journal Title

      みどりいし

      Volume: 26 Pages: 15-19

    • Related Report
      2014 Research-status Report
    • Acknowledgement Compliant
  • [Presentation] Fertility and spawning of F1 hybrids of the coral Acropora in the Indo-Pacific2016

    • Author(s)
      Isomura N, Iwao K, Morita M, Fukami H
    • Organizer
      The 22nd International Congress of Zoology
    • Place of Presentation
      Okinawa, Japan
    • Year and Date
      2016-11-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morphological features of F1 hybrids of the coral genus Acropora2016

    • Author(s)
      Fukami H, Iwao K, Morita M, Isomura N
    • Organizer
      The 22nd International Congress of Zoology
    • Place of Presentation
      Okinawa, Japan
    • Year and Date
      2016-11-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Implications of the role of hybridization in speciation of the genus Acropora: features of reproduction of hybrids in the Indo-Pacific species.2016

    • Author(s)
      Isomura N, Iwao K, Morita M, Fukami H
    • Organizer
      13th International Coral Reef Symposium
    • Place of Presentation
      Honolulu, Hawaii, USA
    • Year and Date
      2016-06-19
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 雑種の繁殖特性の違いによる雑種体形成と交配隔離の両立の可能性2016

    • Author(s)
      磯村尚子・岩尾研二・守田昌哉・深見裕伸
    • Organizer
      日本生態学会
    • Place of Presentation
      国際センター(宮城県仙台市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] 雑種の繁殖特性の違いによる雑種体形成と交配隔離の両立の可能性2015

    • Author(s)
      磯村尚子・岩尾研二・守田昌哉・深見裕伸
    • Organizer
      日本サンゴ礁学会
    • Place of Presentation
      慶応大学
    • Year and Date
      2015-11-27
    • Related Report
      2015 Research-status Report
  • [Presentation] 遺伝子型と受精率-相性も交雑の歴史も考える?-2015

    • Author(s)
      磯村尚子
    • Organizer
      日本サンゴ礁学会
    • Place of Presentation
      慶応大学
    • Year and Date
      2015-11-27
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] ミドリイシ属サンゴの雑種種分化-雑種体の妊性からの検討2014

    • Author(s)
      磯村尚子・岩尾研二・守田昌哉・深見裕伸
    • Organizer
      日本サンゴ礁学会
    • Place of Presentation
      高知城ホール
    • Year and Date
      2014-11-28 – 2014-11-30
    • Related Report
      2014 Research-status Report
  • [Presentation] ミドリイシ属サンゴの雑種種分化-多種同調産卵からの検討-2014

    • Author(s)
      磯村尚子・日根弓太郎・岩尾研二・深見裕伸・守田昌哉
    • Organizer
      日本動物学会
    • Place of Presentation
      東北大学
    • Year and Date
      2014-09-11 – 2014-09-14
    • Related Report
      2014 Research-status Report
  • [Presentation] サンゴとは?-造礁サンゴの基礎知識-2014

    • Author(s)
      磯村尚子
    • Organizer
      第136回信頼性工学部門委員会
    • Place of Presentation
      沖縄工業高等専門学校
    • Year and Date
      2014-04-18 – 2014-04-19
    • Related Report
      2014 Research-status Report
    • Invited
  • [Remarks] 沖縄工業高等専門学校・生物資源工学科・環境生物資源研究の紹介

    • URL

      https://sites.google.com/site/onctenvbiores/home/isomuralab/naokoisomura

    • Related Report
      2016 Annual Research Report
  • [Remarks] 沖縄工業高等専門学校・生物資源工学科・環境生物資源研究の紹介

    • URL

      https://sites.google.com/site/onctenvbiores/home/naokoisomura

    • Related Report
      2015 Research-status Report
  • [Remarks] 沖縄工業高等専門学校・生物資源工学科・環境生物資源研究の紹介

    • URL

      https://sites.google.com/site/onctenvbiores/home

    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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