• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The study for the function of the AR gene and a candidate of its transcription factors in amphibians

Research Project

Project/Area Number 15K07137
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Morphology/Structure
Research InstitutionWaseda University

Principal Investigator

NAKAMURA MASAHISA  早稲田大学, 理工学術院総合研究所(理工学研究所), その他(招聘研究員) (40130025)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords性決定因子 / ステロイドホルモン / 受容体 / 遺伝子ノックイン / 遺伝子ノックアウト / 性転換 / ツチガエル / 両生類 / アンドロゲン / アンドロゲン受容体 / 転写調節領域 / 転写調節因子 / AR遺伝子 / 性決定 / 遺伝子改変 / 生殖細胞 / 体細胞 / ノックイン / ノックダウン
Outline of Final Research Achievements

In this study we have shown for the first time by the following results that the sex of the Japanese pond frog Glandirana rugosa in amphibians is determined by androgen and its receptor. (1) When the AR gene was introduced into G. rugosa female (ZW) embryos by the method of the I-SceI meganuclease, the embryos grew to become adult frogs and developed the ovotestes. (2) When female tadpoles were reared in water containing androgen at a concentration of more than 0.2 ng/ml, all of them grew to be adult frogs and formed the testes. (3) The sex of the AR gene-introduced females were changed to males and they formed testes. (4) When the AR gene-knokdowned female (ZW) embryos by the CRISPR/Cas9 system were reared in water containing androgen at a concentration of 2 ng/ml inducing the female to male sex reversal, the sex of the adult females was not reversed to males. The adult females formed the ovaries.

Academic Significance and Societal Importance of the Research Achievements

現在までに脊椎動物のヒト、ツメガエル、メダカなどで転写因子や分泌蛋白質が性決定因子として発見されている。我々は本研究で両生類(ツチガエル)の性決定因子がステロイドホルモンのアンドロゲンとその受容体であること示した。ステロイドとその受容体は脊椎動物の雌雄差形成や性転換に深く関わることはよく知られているが、脊椎動物の性決定因子になり得ることを世界で初めて示した。本研究によってアンドロゲンとその受容体が性決定因子であることを示すことによってステロイドホルモンの作用機序及び性転換のしくみの解明に大きく貢献することから、本研究の成果は学術的のみならず社会的にも大きな意義がある。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (18 results)

All 2018 2017 2016 2015

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 6 results,  Acknowledgement Compliant: 5 results) Presentation (10 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Nanos3 of the frog Rana rugosa: molecular cloning and characterization2018

    • Author(s)
      Maho Kodama, Madoka Yoshida, Masami Endo, Tohru Kobayashi, Akira Oike, Shigeki Yasumasu, and Masahisa Nakamura
    • Journal Title

      Develop Growth Differ

      Volume: 60 Issue: 2 Pages: 112-120

    • DOI

      10.1111/dgd.12421

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Origin of sex chromosomes in six groups of Rana rugosa frogs inferred from a sex-linked DNA marker2017

    • Author(s)
      Oike A, Watanabe K, Min MS, Tojo K, Kumagai M, Kimoto Y, Yamashiro T, Matsuo T, Kodama M, Nakamura Y, Notsu M, Tochimoto T, Fujita H, Ota M, Ito E, Yasumasu S, Nakamura M.
    • Journal Title

      J Exp Zool A Ecol Integr Physiol

      Volume: 327 Issue: 7 Pages: 444-452

    • DOI

      10.1002/jez.2130

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Participation of androgen and its receptor in sex determination of an amphibian species.2017

    • Author(s)
      Oike A, Kodama M, Yasumasu S, Yamamoto T, Nakamura Y, Ito E, Nakamura M
    • Journal Title

      PLoS One

      Volume: 12 Issue: 6 Pages: e0178067-e0178067

    • DOI

      10.1371/journal.pone.0178067

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Participation of androgen and its receptor in sex determination of an amphibian species2017

    • Author(s)
      Akira Oike, Maho Kodama, Shigeki Yasumasu, Takashi Yamamoto, Yoriko Nakamura, Etsuro Ito, Masahisa Nakamura
    • Journal Title

      PLoS ONE

      Volume: 未定

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] A threshold dosage of testosterone for female-to-male sex-reversal in Rana rugosa frogs2016

    • Author(s)
      Akira Oike, Maho Kodama, Yoriko Nakamura, Masahisa Nakamura
    • Journal Title

      J Exp Zool

      Volume: 325A Issue: 8 Pages: 532-538

    • DOI

      10.1002/jez.2037

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Structural changes in female-to-male sex-reversing gonads of Rana rugosa2016

    • Author(s)
      Daiki Sakamoto, Ayumi Cho, Taishiro Abe, Yoriko Nakamura, Akira Oike, Maho Kodama, Masahisa Nakamura
    • Journal Title

      J Exp Zool

      Volume: 325A Issue: 3 Pages: 209-218

    • DOI

      10.1002/jez.2009

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Molecular cloning and characterization of anti-Mullerian hormone (AMH) from Rana rugosa frogs2015

    • Author(s)
      Maho Kodama, Mari Suda, Daiki Sakamoto, Takehiro Iwasaki, Yasuki Matsuo, Yoshinobu Uno, Yoichi Matsuda, Yoriko Nakamura, Shun Maekawa, Masahisa Nakamura
    • Journal Title

      Endocrinology

      Volume: 156 Pages: 1914-1923

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Molecular cloning and characterization of oocyte-specific Pat1a in Rana rugosa frogs2015

    • Author(s)
      Yoriko Nakamura, Takehiro Iwasaki, Yosuke Umei, Kazuhiro Saotome, Yukiko Nakajima, Shoichi Kitahara, Yoshinobu Uno, Yoichi Matsuda, Akira Oike, Maho Kodama, Masahisa Nakamura
    • Journal Title

      J Exp Zool-A

      Volume: 323 Pages: 516-526

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Origin of sex chromosomes in six groups of Rana rugosa frogs inferred from a new sex-linked DNA marker2018

    • Author(s)
      Okike A, Watanabe K, Yasumasu S, Ito E, Nakamura M
    • Organizer
      Eighth International Symposium on Vertebrate Sex Determination
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ツチガエルにおける新しいZW集団の起源2018

    • Author(s)
      大池輝、伊藤悦朗、安増茂樹、中村正久
    • Organizer
      (社)日本動物学会関東支部大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Androgenとその受容体(AR)はZW型ツチガエルの性決定遺伝子である2017

    • Author(s)
      大池輝、安増茂樹、中村正久
    • Organizer
      日本動物学会富山大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Molecular cloning and characterization of the Nanos gene from the Japanese winkled frog Rana rugosa2016

    • Author(s)
      児玉万穂、吉田万友果、大池輝、川端一平、安増茂樹、中村正久
    • Organizer
      第87回に本動物学会沖縄大会
    • Place of Presentation
      OIST、沖縄
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Importance of androgen receptor in male sex determination in the frog Rana rugosa2016

    • Author(s)
      大池輝、児玉万穂、安増茂樹、中村正久
    • Organizer
      第87回に本動物学会沖縄大会
    • Place of Presentation
      OIST、沖縄
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Structural changes in female-to-male sex-reversing gonads of Rana rugosa2016

    • Author(s)
      Masahisa Nakamura, Daiki Sakamoto, Yoriko Nakamura, Akira Oike, Maho Kodama
    • Organizer
      SSR 2016 Meeting
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2016-07-08
    • Related Report
      2016 Research-status Report
  • [Presentation] ツチガエルにおける始原生殖細胞の移動経路の探索2016

    • Author(s)
      吉田麻友果,中間卓也,中村正久
    • Organizer
      日本動物学会関東支部大会
    • Place of Presentation
      神奈川大学横浜キャンパス
    • Year and Date
      2016-03-12
    • Related Report
      2015 Research-status Report
  • [Presentation] ツチガエルにおける雄化性転換に必要なテストステロン濃度の決定2016

    • Author(s)
      大池輝,中村正久
    • Organizer
      日本動物学会関東支部大会
    • Place of Presentation
      神奈川大学横浜キャンパス
    • Year and Date
      2016-03-12
    • Related Report
      2015 Research-status Report
  • [Presentation] ツチガエルオス化性転換生殖腺の三次元解析2016

    • Author(s)
      坂本大紀,趙亜悠美,阿部大志郎,中村正久
    • Organizer
      日本動物学会関東支部大会
    • Place of Presentation
      神奈川大学横浜キャンパス
    • Year and Date
      2016-03-12
    • Related Report
      2015 Research-status Report
  • [Presentation] Are androgens and its receptor involved in sex determination in amphibians?2015

    • Author(s)
      Masahisa Nakamura
    • Organizer
      The 7th International Symposium on the Biology of Vertebrate Sex Determination
    • Place of Presentation
      Kamehameha Hotel, Kona, Hawaii
    • Year and Date
      2015-04-13
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2015-04-16   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi