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Sex differentiation and sexual maturation regulated by brain hormones in bivalves: Molecular mechanism and its application to seed production

Research Project

Project/Area Number 20H00426
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 40:Forestry and forest products science, applied aquatic science, and related fields
Research InstitutionTohoku University

Principal Investigator

Osada Makoto  東北大学, 農学研究科, 教授 (30177208)

Co-Investigator(Kenkyū-buntansha) 佐竹 炎  公益財団法人サントリー生命科学財団, 生物有機科学研究所・統合生体分子機能研究部, 主幹研究員 (20280688)
原口 省吾  昭和大学, 医学部, 講師 (20592132)
長澤 一衛  東北大学, 農学研究科, 助教 (50794236)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥45,630,000 (Direct Cost: ¥35,100,000、Indirect Cost: ¥10,530,000)
Fiscal Year 2022: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2021: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2020: ¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Keywords二枚貝 / 性分化 / 生殖細胞 / GnRH / ステロイドホルモン
Outline of Research at the Start

本研究では、食害・寄生、感染、環境激変によって資源量が激減している、養殖二枚貝の資源回復と安定生産のための人工種苗生産の高度化実現を目指して、神経内分泌による生殖制御メカニズム解明と神経内分泌制御による性統御、人工催熟の確立を目的に、生殖細胞の起源と運命、2種類のホタテガイ生殖腺刺激ホルモン放出ホルモン(pyGnRHペプチド)による性分化と発達の制御メカニズム、ホタテガイGnRH受容体の機能特性、pyGnRHによるステロイドホルモン生合成の制御、主要二枚貝に機能的な汎用性GnRHペプチドの設計と主要な養殖二枚貝類への適用を図り、親貝の性統御と人工催熟に基づく高度な人工種苗生産技術を開発する。

Outline of Final Research Achievements

Scallops retain undifferentiated early germ cells expressing the vasa gene even after spawning  and then redevelop them through their reproductive cycle. Two gonadotropin-releasing hormones (pyGnRH11aaPro-NH2 and pyGnRH12aaGly-OH) in the scallop central nervous system were characterized, the former predominant in males and the latter in females. The promotion of sexual differentiation and germ cell development in males and females of each GnRH was suggested and revealed a mutually antagonistic relationship between the two hormones. The presence of estrogen-like substances in scallop gonads that are responsive only to chimeric estrogen receptors in scallops and humans was found. The existence of a mechanism of action of GnRH signaling to control reproduction mediated by endogenous estrogen-like molecules was suggested.

Academic Significance and Societal Importance of the Research Achievements

害的生物による食害や感染による斃死、環境激変による資源量や養殖生産量の激減によって、二枚貝養殖の持続的生産が危ぶまれている。それを解決するためには、二枚貝の人工種苗生産技術の開発が急務である。
本研究では、二枚貝における性分化・性成熟に関する生殖内分泌調節機構を解明し、性統御及び人工催熟へ適用することにある。脳ホルモンであるGnRHペプチドとステロイドホルモンによる性分化と生殖細胞発達の制御メカニズムが明らかになり、この基盤情報を人工種苗生産技術として応用する意義は、食料としての水産物増産のみならず、生殖内分泌機構に関わる生物の普遍的なメカニズムとその進化の解明においても非常に大きな意義がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (2 results)

  • [Journal Article] Expression and functional analyses for estrogen receptor and estrogen related receptor of Yesso scallop, Patinopecten yessoensis2023

    • Author(s)
      Wenbin Gu, Tongchai Thitiphuree, Yurika Otoki, Emily C. Marquez, Takeshi Kitano, Naoki Itoh, Kazue Nagasawa, Makoto Osada
    • Journal Title

      The Journal of Steroid Biochemistry and Molecular Biology

      Volume: 231 Pages: 106302-106302

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gene delivery available in molluscan cells by strong promoter discovered from bivalve-infectious virus2022

    • Author(s)
      Yoon Jeongwoong、Gu Wen-Bin、Konuma Mizuki、Kobayashi Mutsuko、Yokoi Hayato、Osada Makoto、Nagasawa Kazue
    • Journal Title

      Proceedings of the National Academy of Sciences of the United States of America

      Volume: 119 Issue: 45 Pages: 209910119-209910119

    • DOI

      10.1073/pnas.2209910119

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Diversified Biomineralization Roles of Pteria penguin Pearl Shell Lectins as Matrix Proteins2021

    • Author(s)
      Tomohisa Ogawa*, Rie Sato, Takako Naganuma, Kayeu Liu, Saho Sato, Shizuka Sakaue, Makoto Osada, Kyosuke Yoshimi and Koji Muramoto
    • Journal Title

      Int. J. Mol. Sci.

      Volume: 22 Issue: 3 Pages: 1081-1081

    • DOI

      10.3390/ijms22031081

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seasonal composition of immature germ cells in the Yesso scallop identified by vasa-like gene (my-vlg) and protein expression, with evidence of irregular germ cell differentiation accompanied with a high mortality event2021

    • Author(s)
      Mokrina Mariia、Nagasawa Kazue、Kanamori Makoto、Natsuike Masafumi、Osada Makoto
    • Journal Title

      Aquaculture Reports

      Volume: 19 Pages: 100613-100613

    • DOI

      10.1016/j.aqrep.2021.100613

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gonadal somatic cell-specific transforming growth factor-β superfamily member in the Yesso scallop reveals gonadal somatic cell distribution during the reproductive phase2021

    • Author(s)
      Konuma Mizuki、Nagasawa Kazue、Mokrina Mariia、Kobayashi Mutsuko、Osada Makoto
    • Journal Title

      Gene

      Volume: in press Pages: 145627-145627

    • DOI

      10.1016/j.gene.2021.145627

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] ホタテガイの糖タンパ質ホルモンと受容体Fshr-lの制御経路の解明と生殖巣発達への影響2022

    • Author(s)
      顧文彬・Shenelle Pamela Bairan LIM・長澤一衛・尾定誠
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイの2種類のpyGnRHペプチドによる性分化と生殖細胞発達への影響2022

    • Author(s)
      顧文彬・Mariia Mokrina・Shenelle Pamela Bairan LIM・小林睦子・栖原健吾・長澤一衛・尾定誠
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイ血球の形態・性状と遺伝子発現に関する研究2022

    • Author(s)
      長澤一衛(東北大院農)・金森誠(北総研機構)・小林睦子・Mokrina Mariia・Yoon Jeongwoong・加藤嵩大・尾定誠
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 海産軟体動物由来の初代細胞培養の樹立と二枚貝感染ウイルスプロモーターを用いた遺伝子導入系の確立2022

    • Author(s)
      Jeongwoong YOON・Wen-Bin GU・小沼瑞・小林睦子・横井勇人・尾定誠・長澤一衛
    • Organizer
      第46回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイの内因性エストロゲン様分子の探索2022

    • Author(s)
      GU WENBIN・原口省吾・長澤一衛・尾定誠
    • Organizer
      第46回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Gonadotropin-releasing hormone, GnRH, in invertebrates -Functional evolution and diversity-2022

    • Author(s)
      Makoto Osada, Kazue Nagasawa
    • Organizer
      Tohoku University-OIST 3rd Joint Workshop on Biodiversity: From Genes and Species to Ecosystem Services and Resilienc
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 養殖海域における新しい赤潮・貝毒プランクトン対策技術の開発2022

    • Author(s)
      尾定誠
    • Organizer
      令和4年度青函水産試験研究交流会議(ホタテ部会)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 糖タンパク質ホルモンと受容体FSHRによるホタテガの生殖腺発達への制御機構2021

    • Author(s)
      顧文彬・尾定誠・長澤一衛
    • Organizer
      令和3年度日本水産学会秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 二枚貝浮遊幼生の着底・変態の神経支配と光による制御2021

    • Author(s)
      尾定誠・長田知大・長澤一衛・顧文彬・堀雅敏・内木敏人・寺井しま
    • Organizer
      令和3年度日本水産学会秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ホタテガイの濾胞刺激ホルモン(Fsh)および受容体(Fshr)様分子の探索と生殖巣発達への影響2021

    • Author(s)
      Gu Wenbin・Shenelle Pamela Bairan Lim・長澤一衛・尾定誠
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] ホタテガイ生殖巣の初代培養およびエレクトロポレーションによる遺伝子導入の試み2021

    • Author(s)
      Jeongwoong YOON・Mizuki KONUMA・Gu WEN-BIN・Mutsuko KOBAYASHI・Makoto OSADA・Kazue NAGASAWA
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] マイクロインジェクションを用いた二枚貝類受精卵への遺伝子導入法の開発2021

    • Author(s)
      小沼瑞・尾定誠・Jeongwoong Yoon・小林睦子・長澤一衛
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 二枚貝類における組織移植技術(グラフト)の開発2021

    • Author(s)
      吉野里穂・Jeongwoong Yoon・小林睦子・小沼瑞・尾定誠・長澤一衛
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] ホタテガイ血球の細胞学的解析と造血組織特定への試み2020

    • Author(s)
      長澤一衛・Mariia Mokrina・金森誠・夏池真史・尾定誠
    • Organizer
      令和2年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Quantitative analysis of reproductive status and evidences of “minor” spawning event in Mizuhopecten yessoensis in Funka Bay2020

    • Author(s)
      Mariia Mokrina, Kazue Nagasawa, Makoto Kanamori, Masafumi Natsuike, Makoto Osada
    • Organizer
      令和2年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 雄ホタテガイのpyGnRH11AA及びpyGnRH12AAペプチドホルモンの性分化と精子形成に及ぼす影響2020

    • Author(s)
      角田渉・小泉慎太朗・吉田達・長澤一衛・尾定誠
    • Organizer
      令和2年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ホタテガイ養殖の未来を考える2020

    • Author(s)
      尾定誠
    • Organizer
      令和2年度日本水産学会東北支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ホタテガイにおける2種類のpyGnRHの性分化と卵形成に及ぼす影響2020

    • Author(s)
      福島隆広・Tongchi Thitiphuree・長澤一衛・尾定誠
    • Organizer
      令和2年度日本水産学会東北支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ホタテガイ生殖巣において体細胞特異的に発現する遺伝子の同定2020

    • Author(s)
      小沼瑞・長澤一衛・Mokrina Mariia・小林睦子・尾定誠
    • Organizer
      令和2年度日本水産学会東北支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 二枚貝浮遊幼生の着底・変態における神経ホルモンの影響2020

    • Author(s)
      長田知大・加藤元一・内木敏人・寺井しま・長澤一衛・尾定誠
    • Organizer
      令和2年度日本水産学会東北支部大会
    • Related Report
      2020 Annual Research Report
  • [Book] Chapter 6 “Endocrine control of gametogenesis and spawning in bivalves” in Advances in Invertebrate (Neuro) Endocrinology, Volume 1: A Collection of Reviews in the Post-Genomic Era.2020

    • Author(s)
      Makoto Osada, Toshie Matsumoto
    • Total Pages
      406
    • Publisher
      Apple Academic Press
    • ISBN
      9781771888929
    • Related Report
      2020 Annual Research Report
  • [Book] Chapter 7 “Gametogenesis, Spawning, and Fertilization in Bivalves and Other Protostomes.” In Reproduction in Aquatic Animals2020

    • Author(s)
      Ryusaku Deguchi, Makoto Osada
    • Total Pages
      379
    • Publisher
      Springer Nature
    • ISBN
      9789811522895
    • Related Report
      2020 Annual Research Report

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

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