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Exploring the diversity of sexual systems in barnacles

Research Project

Project/Area Number 19H03284
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionNara Women's University

Principal Investigator

Yusa Yoichi  奈良女子大学, 自然科学系, 教授 (60355641)

Co-Investigator(Kenkyū-buntansha) 山口 幸  東京女子大学, 現代教養学部, 講師 (20709191)
關野 正志  国立研究開発法人水産研究・教育機構, 水産資源研究所(横浜), グループ長 (90371799)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywords性システム / 性表現 / フジツボ / フクロムシ / 繁殖生態 / 雌雄同体 / 性配分
Outline of Research at the Start

フジツボ類における性システムの多様性とそれを決める要因について多角的にアプローチするために,4つのサブテーマを設定する。具体的には,1)性配分理論と生活史戦略理論を統合した理論を構築し,2)多くの種において生活史に沿った性システムの実態を明らかにし,3)いくつかのモデル種における性システムと環境要因との関係やメカニズムに関する実証研究を進め,4)種間比較によって性システムの進化およびその決定要因について明らかにする。

Outline of Final Research Achievements

Sexual systems in the animal kingdom (such as hermaphroditism and dioecy) are extremely diverse, yet theoretical and empirical research has not provided sufficient answers about which sex systems evolve under specific environmental conditions. In this study, we adopted a multifaceted approach to investigate the diversity of sexual systems and the factors determining them in barnacles in a broad sense (Thecostraca). Specifically, we 1) elucidated the sexual systems of several barnacle species, 2) conducted empirical studies on the relationship between sexual systems and environmental factors as well as the mechanisms in some model species, 3) clarified the evolutionary process and factors determining sexual systems through interspecific comparisons, and 4) built a theoretical framework that explains the diverse sexual systems of barnacles.

Academic Significance and Societal Importance of the Research Achievements

フジツボ類は,理論・実証面ともに動物における性システム研究のモデル系と目されている。本研究の結果,繁殖集団サイズが性システムの進化と維持に重要であることが示された。特に,雄・雌雄同体に加え,機能的な雌が共存する種が発見された。また,フクロムシの性決定に関して,従来の説とは異なる知見が得られた。本研究の成果は,フジツボ類のみならず,動物全体における性システムおよびその進化的要因の解明に役立つだろう。

Report

(5 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (29 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 6 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 7 results) Book (2 results) Funded Workshop (1 results)

  • [Int'l Joint Research] コペンハーゲン大学(デンマーク)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Copenhagen(デンマーク)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Academia Sinica, Taiwan(その他の国・地域)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Copenhagen(デンマーク)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Academia Sinica, Taiwan(その他の国・地域)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] New host crab <i>Macrophthalmus</i> (<i>Macrophthalmus</i>) <i>convexus</i> Stimpson, 1858 of the endangered pedunculate barnacle <i>Octolasmis unguisiformis</i> Kobayashi &amp; Kato, 2003 (Lepadomorpha: Poecilasmatidae) in Amami Oshima Island, Japan2024

    • Author(s)
      Hendry Wijayanti, Toshihiko Yonezawa, Keiji Wada, Mika Kitazume, Yoichi Yusa
    • Journal Title

      Crustacean Research

      Volume: 53 Issue: 0 Pages: 45-52

    • DOI

      10.18353/crustacea.53.0_45

    • ISSN
      0287-3478, 2189-5317
    • Year and Date
      2024-04-19
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Heterogeneous shell growth of the neustonic goose barnacle Lepas anserifera:Its potential application for tracking floating materials2024

    • Author(s)
      Hiromi Kayama Watanabe, Yukiko Nagai, Saburo Sakai, Genki Kobayashi, Luna Yamamori, Noriko Tada, Tatsu Kuwatani, Haruka Nishikawa, Takuto Horigome, Haruka Uehara, Yoichi Yusa
    • Journal Title

      Research Square

      Volume: -

    • DOI

      10.21203/rs.3.rs-3819539/v1

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Variations in life cycle and seasonal sex ratio in the rhizocephalan <i>Peltogasterella gracilis</i> (Boschma, 1927) (Cirripedia: Rhizocephala: Peltogasterellidae)2022

    • Author(s)
      Kajimoto Asami、Hoeg Jens T、Kato Kenji、Yusa Yoichi
    • Journal Title

      Journal of Crustacean Biology

      Volume: 42 Issue: 4

    • DOI

      10.1093/jcbiol/ruac057

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evolutionary game of life-cycle types in marine benthic invertebrates: feeding larvae versus nonfeeding larvae versus direct development2022

    • Author(s)
      Iwasa, Y., Y. Yusa & S. Yamaguchi
    • Journal Title

      Journal of Theoretical Biology

      Volume: 537 Pages: 111019-111019

    • DOI

      10.1016/j.jtbi.2022.111019

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evolution of life cycle dimorphism: an example of sacoglossan sea slugs2021

    • Author(s)
      S. Yamaguchi, Y. Yusa, Y. Iwasa
    • Journal Title

      Journal of Theoretical Biology

      Volume: 525:110760 Pages: 110760-110760

    • DOI

      10.1016/j.jtbi.2021.110760

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microsatellite DNA markers applicable to paternity inference in the androdioecious gooseneck barnacle Octolasmis warwickii (Lepadiformes: Poecilasmatidae)2020

    • Author(s)
      Kobayashi, M., Y. Yusa & M. Sekino
    • Journal Title

      Molecular Biology Reports

      Volume: 47 Issue: 6 Pages: 4885-4890

    • DOI

      10.1007/s11033-020-05473-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Life cycles of the rhizocephalan <i>Boschmaella japonica</i> Deichmann &amp; H?eg, 1990 (Cirripedia: Chthamalophilidae) and its host barnacle <i>Chthamalus challengeri</i> Hoek, 1883 (Cirripedia: Chthamalidae)2020

    • Author(s)
      Yabuta Miku、H?eg Jens T、Yamato Shigeyuki、Yusa Yoichi
    • Journal Title

      Journal of Crustacean Biology

      Volume: 40 Issue: 6 Pages: 825-832

    • DOI

      10.1093/jcbiol/ruaa027

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seasonality in the production of male larvae: a game model for parasitic barnacles (Cirripedia: Rhizocephala)2020

    • Author(s)
      S. Yamaguchi, Y. Iwasa
    • Journal Title

      Journal of Crustacean Biology

      Volume: 40 Issue: 6 Pages: 833-838

    • DOI

      10.1093/jcbiol/ruaa021

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Different effects of mating group size as male and as female on sex allocation in a simultaneous hermaphrodite2020

    • Author(s)
      Tamechika Masami M.、Matsuno Kohei、Wada Satoshi、Yusa Yoichi
    • Journal Title

      Ecology and Evolution

      Volume: 10 Issue: 5 Pages: 2492-2498

    • DOI

      10.1002/ece3.6075

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 寄生性甲殻類フサフクロムシのキプリス幼生の雌雄における比較トランスクリプトーム2024

    • Author(s)
      梶本麻未, 豊田賢治, 大平剛, 遊佐陽一
    • Organizer
      第71回日本生態学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Labile sex allocation and sex ratio in the androdioecious barnacle Octolasmis unguisiformis2024

    • Author(s)
      Hendry Wijayanti, Yoichi Yusa
    • Organizer
      第71回日本生態学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Non-consumptive effects on the host due to the rhizocephalan infection2023

    • Author(s)
      Asami Kajimoto, Yoichi Yusa
    • Organizer
      The 10th EAFES International Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-consumptive effects of the parasitic rhizocephalan barnacle on its crab host2023

    • Author(s)
      Asami Kajimoto, Yoichi Yusa
    • Organizer
      The 10th EAFES International Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 雄と雌雄同体が共存する時:フジツボ類における雄性異体という性表現2022

    • Author(s)
      遊佐陽一
    • Organizer
      日本甲殻類学会60周年シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 海洋生物の多様な生活史の進化2021

    • Author(s)
      巌佐 庸、山口 幸、遊佐陽一
    • Organizer
      日本数理生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] What factors affect sex allocation in simultaneous hermaphrodites? : The case of Balanus rostratus2019

    • Author(s)
      Masami Tamechika, Kohei Matsuno, Satoshi Wada & Yoichi Yusa
    • Organizer
      Open International Symposium: Reproductive Biology of Barnacles, The Crustacean Society of Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Life cycle of the rhizocephalan Boschmaella japonica and its effects on the host barnacle Chthamalus challengeri.2019

    • Author(s)
      Miku Yabuta, Jens T. Hoeg, Shigeyuki Yamato & Yoichi Yusa
    • Organizer
      Open International Symposium: Reproductive Biology of Barnacles, The Crustacean Society of Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Life cycle and seasonal sex ratio variation in the rhizocephalan Peltogasterella gracilis.2019

    • Author(s)
      Asami Kajimoto, Kenji Kato, Jens T. Hoeg & Yoichi Yusa
    • Organizer
      Open International Symposium: Reproductive Biology of Barnacles, The Crustacean Society of Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reproductive success of dwarf males and hermaphrodites in Octolasmis unguisiformis.2019

    • Author(s)
      Masako Kawane, Yurika Dantsuji, Shun Kawaida, Masashi Sekino & Yoichi Yusa
    • Organizer
      Open International Symposium: Reproductive Biology of Barnacles, The Crustacean Society of Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reproductive ecology of deep sea scalpellid barnacles.2019

    • Author(s)
      Nanami Hashizoe, Yasunori Kano & Yoichi Yusa
    • Organizer
      Open International Symposium: Reproductive Biology of Barnacles, The Crustacean Society of Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evolution of diverse sexual systems in thoracican barnacles: a theoretical approach.2019

    • Author(s)
      Sachi Yamaguchi & Yoh Iwasa
    • Organizer
      Open International Symposium: Reproductive Biology of Barnac
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 海産無脊椎動物多様性学2022

    • Author(s)
      京都大学フィールド科学教育研究センター瀬戸臨海実験所創立100周年記念出版編集委員会、朝倉 彰、下村 通誉、中野 智之、後藤 龍太郎、山守 瑠奈
    • Total Pages
      706
    • Publisher
      京都大学学術出版会
    • ISBN
      9784814004492
    • Related Report
      2021 Annual Research Report
  • [Book] The Natural History of the Crustacea: 6. Reproductive Biology2020

    • Author(s)
      Rickey Cothran, Martin Thiel
    • Total Pages
      568
    • Publisher
      Oxford University Press
    • ISBN
      9780190688554
    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] Open International Symposium: Reproductive Biology of Barnacles, The Crustacean Society of Japan2019

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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