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Exploring the neural mechanism that regulates song preference learning in fruit flies

Research Project

Project/Area Number 20H03355
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 46030:Function of nervous system-related
Research InstitutionNagoya University

Principal Investigator

Kamikouchi Azusa  名古屋大学, 理学研究科, 教授 (00525264)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Keywordsショウジョウバエ / 歌識別学習 / 抑制性神経伝達物質 / 神経回路機構 / GABAニューロン / 求愛歌 / 抑制性伝達 / GABA / 歌識別能力
Outline of Research at the Start

幼児は成長初期に母語に曝されることで、その言語が持つ音の特徴を識別する能力が育つ。このような言語発達のメカニズムを理解するためには、ヒトでの研究に加えて、実験操作が行えるモデル動物での研究が有用である。近年我々は、言語学習の神経機構を解析するモデルとして、ショウジョウバエの歌識別学習パラダイムを確立した。本研究の目的は、この実験系を用いて、歌の識別能力の発達を担う神経回路機構を解明することである。ヒトと進化的にかけ離れたショウジョウバエで研究を進めることで、言語・歌学習を支える神経機構の多点比較が初めて可能となり、脊椎動物とも共通する一般原理の抽出や、多様性の理解が大幅に進むと期待される。

Outline of Final Research Achievements

The aim of this research project was to elucidate the neural mechanism that regulates song preference learning in Drosophila melanogaster. In particular, we focused on the inhibitory neurotransmitter GABA and used molecular genetic techniques to narrow down the candidate GABAergic neurons responsible for this process. As a result, we discovered that only a few GABAergic neurons in the brain are essential for the establishment of song preference learning. Through the identification and functional inhibition of neurotransmitter receptors expressed in these neurons, we successfully identified the neurotransmitter groups received by these neurons. Additionally, we investigated inter-species differences in the neural mechanism of song preference and found that the response characteristics of a type of secondary auditory neuron differ between Drosophila melanogaster and its close relatives.

Academic Significance and Societal Importance of the Research Achievements

幼児は母語に触れることで、その言語が持つ音の特徴を識別する能力を発達させる。しかし、このような、特定のパターンを持つ音の識別能力がどのようにして経験に応じて発達するのか、その神経機構には不明な点が多い。近年我々が確立したショウジョウバエの歌識別学習パラダイムは、この課題に挑むための有効な実験モデルである。本研究課題ではその利点を存分に利用することで、この歌識別学習を成立させる神経機構の一端を明らかにした。さらに、歌識別を担う神経機構そのものの理解も進めた。今後、この成果をベースに次なる研究へと展開させることで、ヒトの言語発達を担うメカニズム理解の一助になると期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (21 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 7 results)

  • [Int'l Joint Research] National Health Research Institutes(その他の国・地域 台湾)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Puerto Rico/University of Vermont(米国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Behavioral screening of sleep‐promoting effects of human intestinal and food‐associated bacteria on Drosophila melanogaster2023

    • Author(s)
      Ko Taro、Murakami Hiroki、Kobayashi Shunjiro、Kamikouchi Azusa、Ishimoto Hiroshi
    • Journal Title

      Genes to Cells

      Volume: 1 Issue: 6 Pages: 1-14

    • DOI

      10.1111/gtc.13025

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evolutionary conservation and diversification of auditory neural circuits that process courtship songs in Drosophila2023

    • Author(s)
      Ohashi Takuro S.、Ishikawa Yuki、Awasaki Takeshi、Su Matthew P.、Yoneyama Yusuke、Morimoto Nao、Kamikouchi Azusa
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 383-383

    • DOI

      10.1038/s41598-022-27349-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distinct decision-making properties underlying the species specificity of group formation of flies2022

    • Author(s)
      Riku Shirasaki* , Ryoya Tanaka* , Hiroki Takekata , Takashi Shimada , Yuki Ishikawa‡ , Azusa Kamikouchi‡ *:Co-first authors,‡:Co-corresponding author
    • Journal Title

      Royal Society Open Science

      Volume: 9 Issue: 8 Pages: 220042-220042

    • DOI

      10.1098/rsos.220042

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Serotonin modulation in the male Aedes aegypti ear influences hearing2022

    • Author(s)
      Xu Yifeng Y. J.、Loh YuMin M.、Lee Tai-Ting、Ohashi Takuro S.、Su Matthew P.、Kamikouchi Azusa
    • Journal Title

      Frontiers in Physiology

      Volume: 13 Pages: 931567-931567

    • DOI

      10.3389/fphys.2022.931567

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biogenic action of Lactobacillus plantarum SBT2227 promotes sleep in Drosophila melanogaster2022

    • Author(s)
      Ko Taro、Murakami Hiroki、Kamikouchi Azusa、Ishimoto Hiroshi
    • Journal Title

      iScience

      Volume: 25 Issue: 7 Pages: 104626-104626

    • DOI

      10.1016/j.isci.2022.104626

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mate Discrimination of Colocasiomyia xenalocasiae and C. alocasiae (Diptera: Drosophilidae) as a Possible Factor Contributing to their Co-Existence on the Same Host Plant2022

    • Author(s)
      Tanaka Ryoya、Takekata Hiroki、Ishikawa Yuki、Kamikouchi Azusa
    • Journal Title

      Journal of Insect Behavior

      Volume: 35 Issue: 1-3 Pages: 44-55

    • DOI

      10.1007/s10905-022-09798-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Loss of Fis1 impairs proteostasis during skeletal muscle aging in Drosophila2021

    • Author(s)
      Lee Tai‐Ting、Chen Po‐Lin、Su Matthew P.、Li Jian‐Chiuan、Chang Yi‐Wen、Liu Rei‐Wen、Juan Hsueh‐Fen、Yang Jinn‐Moon、Chan Shih‐Peng、Tsai Yu‐Chen、Stockum Sophia、Ziviani Elena、Kamikouchi Azusa、Wang Horng‐Dar、Chen Chun‐Hong
    • Journal Title

      Aging Cell

      Volume: 20 Issue: 6

    • DOI

      10.1111/acel.13379

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distinct subpopulations of mechanosensory chordotonal organ neurons elicit grooming of the fruit fly antennae2020

    • Author(s)
      Hampel Stefanie、Eichler Katharina、Yamada Daichi、Bock Davi D、Kamikouchi Azusa、Seeds Andrew M
    • Journal Title

      eLife

      Volume: 9

    • DOI

      10.7554/elife.59976

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Neural mechanisms underlying song preference learning in flies2023

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      IRCN-iPlasticity International Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Neural mechanisms underlying acoustic communication of fruit flies2023

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      Symposium of Sensory and Circadian Biology (Taiwan)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Acoustic communication of fruit flies and mosquitoes2023

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      第70回日本生態学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ショウジョウバエと蚊における、聴覚を介した配偶行動のメカニズム2022

    • Author(s)
      上川内 あづさ
    • Organizer
      第93回日本動物学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Identification of GABAergic neurons required for song preference learning in Drosophila2021

    • Author(s)
      Keisuke Imoto, Ryoya Tanaka, Takuro Ohashi, Yuki Ishikawa, Azusa Kamikouchi
    • Organizer
      比較生理学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] GABA attenuates song responses of fruit flies via presynaptic inhibition of auditory sensory neurons2021

    • Author(s)
      Kamikouchi A, Oguri N, Ohashi T, Ishikawa Y, Horigome M
    • Organizer
      JDRC14 (14th Japan Drosophila Research Conference)
    • Related Report
      2021 Annual Research Report
  • [Presentation] How does the female fly evaluate the courtship song from a male fly?2020

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      The 23rd annual meeting of the Korean Society for Brain and Neural Sciences.
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Decoding acoustic communication in flies and mosquitoes.2020

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      International webinar on Arthropod sensory organs
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Distinct sensory stimuli modify the chase strategy of the courting male fly (D. melanogaster).2020

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      Neuro 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Song exposure modifies the chase strategy of the courting male fly (D. melanogaster)2020

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      日本比較生理生化学会 第41回東京大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] GABAergic system tunes the response to the courtship song in fruit flies. Azusa Kamikouchi.2020

    • Author(s)
      Azusa Kamikouchi
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Annual Research Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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