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Development of tetrachromatic retinal cone subtypes in zebrafish

Research Project

Project/Area Number 16K20983
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Animal physiology/Animal behavior
Genetics/Chromosome dynamics
Research InstitutionNational Institute of Genetics

Principal Investigator

Shiraki Tomoya  国立遺伝学研究所, 遺伝形質研究系, 特任研究員 (40632352)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords視覚 / 色覚 / 錐体 / ゼブラフィッシュ / 網膜 / 光受容 / 発生 / 転写制御 / 光受容分子 / 発現制御 / 発生・分化
Outline of Final Research Achievements

Vertebrate vision begins with photoreception by two types of visual photoreceptor cells, rods and cones. Cones, which are responsible for photopic vision, are further subdivided into several subtypes with different wavelength (color) sensitivities, and the combination of these subtypes produces color vision. It has been thought that ancestral vertebrates acquired four cone subtypes and had tetrachromatic vision. In this study, using a zebrafish that retains four subtypes of cones, we have revealed the mechanism of establishment of blue and green cones.

Academic Significance and Societal Importance of the Research Achievements

脊椎動物は進化の初期において四種類の錐体タイプを獲得し、脊椎動物の祖先型は四色型色覚をもっていたと考えられている。しかし、分子レベルでの解析が進んでいるマウスは、このうち青から緑の中波長領域に吸収極大波長をもつ二つの光受容分子(オプシン)遺伝子を失っており、脊椎動物における四色型色覚の形成機構は未解明であった。本研究では、四種類の錐体を保持するゼブラフィッシュを用いて、青・緑錐体オプシン遺伝子の転写制御に関わる因子を同定し、四色型色覚の形成機構を明らかにした。今後、マウスや他の哺乳類、脊椎動物における解析結果との比較から、色覚形成機構の進化的変遷の解明にもつながると考えられる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (12 results)

All 2019 2018 2017 2016 Other

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 3 results) Remarks (2 results)

  • [Journal Article] Six6 and Six7 coordinately regulate expression of middle-wavelength opsins in zebrafish2019

    • Author(s)
      Ogawa Y, Shiraki T, Asano Y, Muto A, Kawakami K, Suzuki Y, Kojima D, Fukada Y.
    • Journal Title

      Proc Natl Acad Sci U S A.

      Volume: 116 (10) Issue: 10 Pages: 4651-4660

    • DOI

      10.1073/pnas.1812884116

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A tRNA-based multiplex sgRNA expression system in zebrafish and its application to generation of transgenic albino fish.2018

    • Author(s)
      Shiraki, T., and Kawakami, K.
    • Journal Title

      Scientific reports

      Volume: 8 Issue: 1 Pages: 13386-13386

    • DOI

      10.1038/s41598-018-31476-5

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] A tRNA-based multiple sgRNA expression system toward the development of a simple and efficient conditional gene knockout method in zebrafish2019

    • Author(s)
      Tomoya Shiraki and Koichi Kawakami
    • Organizer
      14th International Zebrafish Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ゼブラフィッシュにおける網膜から視索前野への光入力経路の解析2019

    • Author(s)
      白木 知也、武藤 彩、川上 浩一
    • Organizer
      日本動物学会第90回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A tRNA-based multiplex sgRNA expression system in zebrafish and its application to generation of transgenic albino fish2018

    • Author(s)
      Tomoya Shiraki and Koichi Kawakami
    • Organizer
      NIG International Symposium 2018 “Genome Editing and Functional Genomics”
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] A tRNA-based multiplex sgRNA expression system in zebrafish and its application to generation of transgenic albino fish2018

    • Author(s)
      Tomoya Shiraki and Koichi Kawakami
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Generation of albino-transgenic zebrafish using tRNA-based multiplexed sgRNA expression2017

    • Author(s)
      Tomoya Shiraki and Koichi Kawakami
    • Organizer
      第23回小型魚類研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] アルビノ遺伝子組み換えゼブラフィッシュの作製2017

    • Author(s)
      白木知也、川上浩一
    • Organizer
      日本動物学会第88回大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Generation of transgenic-albino zebrafish using tRNA-based multiplexed sgRNA expression2017

    • Author(s)
      Tomoya Shiraki and Koichi Kawakami
    • Organizer
      International Workshop on Zebrafish Neural Circuits and Behavior
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 視細胞の機能分化を生み出す転写制御機構の解析2016

    • Author(s)
      白木知也
    • Organizer
      第19回日本光生物学協会年会
    • Place of Presentation
      東京大学 山上会館 (東京)
    • Related Report
      2016 Research-status Report
  • [Remarks] 青や緑の色覚遺伝子を制御する分子の同定

    • URL

      https://www.nig.ac.jp/nig/ja/2019/04/research-highlights_ja/rh20190410.html

    • Related Report
      2018 Research-status Report
  • [Remarks] ゼブラフィッシュにおける簡便な複数sgRNA発現方法の開発

    • URL

      https://www.nig.ac.jp/nig/ja/2018/09/research-highlights_ja/20180907.html

    • Related Report
      2018 Research-status Report

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Published: 2016-04-21   Modified: 2022-12-28  

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