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Evolution of eusociality mediated by the co-option of physiological mechanisms

Research Project

Project/Area Number 26870121
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Animal physiology/Animal behavior
Ecology/Environment
Research InstitutionThe University of Tokyo

Principal Investigator

OKADA Yasukazu  東京大学, 大学院総合文化研究科, 助教 (10638597)

Research Collaborator Mikheyev Alexander S.  
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsカースト分化 / 分業 / 表現型可塑性 / 生態発生学 / 社会性昆虫 / 進化発生学 / インスリン経路 / 休眠 / 順位行動 / 高速シーケンサー / ドーパミン / 行動の生理基盤 / 順位構造
Outline of Final Research Achievements

In this study, using a monomorphic queenless ant, Diacamma sp., we identified genes associated with monomorphic caste differentiation, specifically focusing on the onset of queen-worker differentiation. Using RNA-seq, qPCR and topical application of drugs, the study revealed 1) queen has heightened level of brain dopamine and this dopamine has gonadotropic neurohormonal effects, 2) genes involved in nutrition processing and storage, such as insulin-signaling genes and hexamerins, were strongly altered soon after dominance rank formation. These lines of evidence suggest that workers deploy physiological characteristics of diapause phase in solitary insects, so that they can reduce metabolic and reproductive activities.

Report

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

    (19 results)

All 2017 2016 2015 2014 Other

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 5 results,  Acknowledgement Compliant: 6 results) Presentation (6 results) (of which Invited: 1 results) Remarks (4 results)

  • [Journal Article] Ant circadian rhythms associated with brood care type.2017

    • Author(s)
      Fujioka, H., Abe, M. S., Fuchikawa,T., Tsuji, K., Shimada, M., Okada, Y.
    • Journal Title

      Biology Letters

      Volume: 13 Issue: 2 Pages: 20160743-20160743

    • DOI

      10.1098/rsbl.2016.0743

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Queen contact and among-worker interactions dually suppress worker brain dopamine as a potential regulator of reproduction in an ant.2017

    • Author(s)
      Shimoji, H., Aonuma,H., Miura, T., Tsuji, K., Sasaki, K., Okada, Y.
    • Journal Title

      Behavioral Ecology and Sociobiology

      Volume: 71 Issue: 2 Pages: 35-35

    • DOI

      10.1007/s00265-016-2263-3

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Social dominance alters nutrition-related gene expression immediately: transcriptomic evidence from a monomorphic queenless ant.2017

    • Author(s)
      Okada Y*, Watanabe Y, Mandy MYT, Tsuji K, Mikheyev AS*.
    • Journal Title

      Molecular Ecology

      Volume: 印刷中 Issue: 11 Pages: 2922-2938

    • DOI

      10.1111/mec.13989

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Mutual intra- and interspecific social parasitism between parapatric sister species of Vespula wasps.2017

    • Author(s)
      Saga T, Kanai M, Shimada M, Okada Y.
    • Journal Title

      Insectes Sociaux

      Volume: 64 Issue: 1 Pages: 95-95

    • DOI

      10.1007/s00040-016-0519-6

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Histone deacetylases control module-specific phenotypic plasticity in beetle weapons.2016

    • Author(s)
      Ozawa T., Mizuhara T., Arata M., Shimada M., Niimi T., Okada K., Okada Y., Ohta K.
    • Journal Title

      Proc. Natl. Acad. Sci. USA

      Volume: 113 Issue: 52 Pages: 15042-15047

    • DOI

      10.1073/pnas.1615688114

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Social dominance and reproductive differentiation mediated by dopaminergic signaling in a queenless ant.2015

    • Author(s)
      Yasukazu Okada, Ken Sasaki, Satoshi Miyazaki, Hiroyuki Shimoji, Kazuki Tsuji and Toru Miura
    • Journal Title

      The Journal of Experimental Biology

      Volume: 218 Issue: 7 Pages: 1091-1098

    • DOI

      10.1242/jeb.118414

    • Related Report
      2015 Research-status Report 2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Environmental factors that affect pupation decision in the horned flour beetle Gnatocerus cornutus2015

    • Author(s)
      Takane Ozawa, Kunihiro Ohta, Masakazu Shimada, Kensuke Okada, Yasukazu Okada
    • Journal Title

      Zoological Science

      Volume: 32 Issue: 2 Pages: 183-187

    • DOI

      10.2108/zs140203

    • Related Report
      2015 Research-status Report 2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Relationships among male sexually selected traits in the bean bug Riptortus pedestris (Heteroptera: Alydidae).2015

    • Author(s)
      Suzaki Y, Katsuki M, Miyatake T, Okada Y
    • Journal Title

      Entomological Science

      Volume: in press Issue: 2 Pages: 278-282

    • DOI

      10.1111/ens.12114

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Social dominance modifies behavioral rhythm in a queenless ant2014

    • Author(s)
      Fuchikawa T,Okada Y, Miyatake T, Tsuji K
    • Journal Title

      Behavioral Ecology and Sociobiology

      Volume: 68 Issue: 11 Pages: 1843-1850

    • DOI

      10.1007/s00265-014-1793-9

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 栄養生理からみたアリのコロニー統合2017

    • Author(s)
      岡田泰和 藤岡春菜
    • Organizer
      応用動物昆虫学会
    • Place of Presentation
      東京農工大学(東京都、小金井市)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Annual Research Report
  • [Presentation] 多次元画像ビッグデータを活用した動物学の新展開(小集会企画)2016

    • Author(s)
      岡田泰和 渕側太郎
    • Organizer
      応用動物昆虫学会
    • Place of Presentation
      大阪府立大学(大阪府堺市)
    • Year and Date
      2016-03-26
    • Related Report
      2015 Research-status Report
  • [Presentation] 社会性昆虫の概日リズムと社会的相互作用2016

    • Author(s)
      藤岡春菜,阿部真人,嶋田正和,岡田泰和
    • Organizer
      日本生態学会
    • Place of Presentation
      東北大学 (宮城県仙台市)
    • Year and Date
      2016-03-20
    • Related Report
      2015 Research-status Report
  • [Presentation] アリは子煩悩? ー育児による概日リズムの消失ー2015

    • Author(s)
      藤岡春菜,阿部真人,嶋田正和,岡田泰和
    • Organizer
      日本行動学会
    • Place of Presentation
      東京海洋大学 (東京都港区)
    • Year and Date
      2015-11-21
    • Related Report
      2015 Research-status Report
  • [Presentation] カースト特異的遺伝子の異時的発現が駆動する社会形態の進化2015

    • Author(s)
      岡田泰和
    • Organizer
      進化学会 (ワークショップ 性行動・社会行動の神経・内分泌・分子基盤からその進化機構を考える)
    • Place of Presentation
      中央大学(東京都文京区)
    • Year and Date
      2015-08-20
    • Related Report
      2015 Research-status Report
  • [Presentation] 武器甲虫における表現型統合2015

    • Author(s)
      岡田泰和
    • Organizer
      生態学会
    • Place of Presentation
      鹿児島県 鹿児島市 鹿児島大学
    • Year and Date
      2015-03-18 – 2015-03-22
    • Related Report
      2014 Research-status Report
    • Invited
  • [Remarks] Yasukazu Okada Research Website

    • URL

      https://purpleandorange.jimdo.com/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 東京大学HP

    • URL

      http://system.c.u-tokyo.ac.jp/common/professor/okada.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] Yasukazu Okada Research Website

    • URL

      http://purpleandorange.jimdo.com

    • Related Report
      2015 Research-status Report
  • [Remarks] Yasukazu Okada researh website

    • URL

      http://purpleandorange.jimdo.com

    • Related Report
      2014 Research-status Report

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

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