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A novel left-right dimorphism in snails: understanding the actual situation and the polymorphism maintenance mechanism

Research Project

Project/Area Number 23K23951
Project/Area Number (Other) 22H02688 (2022-2023)
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund (2024)
Single-year Grants (2022-2023)
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionWaseda University

Principal Investigator

細 将貴  早稲田大学, 教育・総合科学学術院, 准教授 (80557695)

Co-Investigator(Kenkyū-buntansha) 山道 真人  国立遺伝学研究所, 新分野創造センター, 准教授 (70734804)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Granted (Fiscal Year 2024)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2024: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords種分化 / 生殖隔離 / 多型 / 集団構造 / 性的対立 / 生殖隔
Outline of Research at the Start

本研究課題の目的は、申請者が近年発見したカタツムリの左右二型現象について、その実態と二型維持機構を解明することである。これまでのところ、我々はこのカタツムリを対象に広域調査を実施し、右巻きの個体と左巻きの個体が共存する左右二型集団が広い範囲で観察され、それらは必ずしも地理的に連続しないことを明らかにした。また交配実験により、右巻き個体のみからなる集団から採集した右巻き個体と、左巻き個体のみからなる集団から採集した左巻き個体の間でF1世代を作成することに成功している。今後、交配実験を継続し、それと並行して、得られた試料のゲノム配列に基づく集団構造解析と数理モデル解析研究を進めていく。

Outline of Annual Research Achievements

昨年度までは、新型コロナウイルス感染症の流行が継続したため、海外での現地調査が著しく制限され、研究の進展は限られた。また、研究代表者の所属変更に伴い、実験室ほかの環境整備に努める必要を生じた。以上のような困難な状況のなかで、当該年度にはようやく現地調査が実施可能となり、多くの成果を得ることができている。
まず、現地調査により、二型集団と単型集団のそれぞれから多数の生体を採集することができた。一部のサンプルについては適切に標本化し、遺伝構造を解析するための試料として準備ができた状態にある。また、十分な個体数を確保できた集団の個体については飼育実験を行い、一部の個体を未交尾のまま性成熟させることに成功した。さらに、異なる巻型の個体間、あるいは二型集団と単型集団に由来する個体間での交配実験を行い、交尾行動の観察とF1の作出に成功した。以上の試行から、今後予定している本格的な交配実験については、高い確度で問題なく遂行できるものと考えられた。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

本研究課題の開始一年目にあたる昨年度については、新型コロナウイルス感染症の流行から海外調査の実施が困難になり、進捗に遅れが生じた。しかしながら、二年目に当たる当該年度については、野外調査と飼育実験を計画通りに実施することができた。最終年度に当たる三年目についても調査が実施できる見込みであり、得られた試料をもとにした研究の実施により当初の目的は達成可能と考えられる。

Strategy for Future Research Activity

得られた試料に対して、形態と集団構造の解析を進める。また、交配実験を規模を大きくして実施する。

Report

(2 results)
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • Research Products

    (36 results)

All 2024 2023 2022

All Journal Article (20 results) (of which Int'l Joint Research: 14 results,  Peer Reviewed: 20 results,  Open Access: 15 results) Presentation (15 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Book (1 results)

  • [Journal Article] Addressing the taxonomic confusion of Mesocoelium Odhner, 1910 (Trematoda: Plagiorchioidea: Mesocoeliidae) in Japanese urodelan and anuran amphibians2024

    • Author(s)
      Tsuchida Karin、Urabe Misako、Nishikawa Kanto、Hoso Masaki、Wu ShuPing
    • Journal Title

      Systematic Parasitology

      Volume: 101 Issue: 2 Pages: 11-11

    • DOI

      10.1007/s11230-023-10126-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A new species of the genus Paradistomum (Platyhelminthes: Trematoda) from Iwasaki’s snail-eating snake Pareas iwasakii, with a note on morphological variations of Paradistomum megareceptaculum (Tamura, 1941)2024

    • Author(s)
      Waki Tsukasa、Hoso Masaki、Nitta Masato、Seo Harushige、Urabe Misako
    • Journal Title

      Systematic Parasitology

      Volume: 101 Issue: 3 Pages: 41-41

    • DOI

      10.1007/s11230-024-10164-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Different photoperiodic responses in diapause induction can promote the maintenance of genetic diversity via the storage effect in <i>Daphnia pulex</i>2024

    • Author(s)
      Otake Yurie、Yamamichi Masato、Hirata Yuka、Odagiri Haruka、Yoshida Takehito
    • Journal Title

      Proceedings of the Royal Society B: Biological Sciences

      Volume: 291 Issue: 2016 Pages: 20231860-20231860

    • DOI

      10.1098/rspb.2023.1860

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Academic publishing requires linguistically inclusive policies2024

    • Author(s)
      Arenas-Castro Henry、(+33 authors)、Yamamichi Masato、Amano Tatsuya
    • Journal Title

      Proceedings of the Royal Society B: Biological Sciences

      Volume: 291 Issue: 2018 Pages: 20232840-20232840

    • DOI

      10.1098/rspb.2023.2840

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Facilitative interaction networks in experimental microbial community dynamics2023

    • Author(s)
      Fujita H, Ushio M, Suzuki K, Abe MS, Yamamichi Y, Yusuke Okazaki, Canarini A, Hayashi I, Fukushima K, Fukuda S, Kiers ET, Toju H (
    • Journal Title

      Frontiers in Microbiology

      Volume: 14 Pages: 153952-153952

    • DOI

      10.3389/fmicb.2023.1153952

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] When to help juveniles, adults, or both: analyzing the evolutionary models of stage-structured mutualism2023

    • Author(s)
      Nakazawa Takefumi、Katayama Noboru、Utsumi Shunsuke、Yamawo Akira、Yamamichi Masato
    • Journal Title

      Frontiers in Ecology and Evolution

      Volume: 11 Pages: 1138138-1138138

    • DOI

      10.3389/fevo.2023.1138138

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Frequency‐dependent community dynamics driven by sexual interactions2023

    • Author(s)
      Yamamichi Masato、Tsuji Kaoru、Sakai Shoko、Svensson Erik I.
    • Journal Title

      Population Ecology

      Volume: 65 Issue: 4 Pages: 204-219

    • DOI

      10.1002/1438-390x.12165

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Beyond simple adaptation: Incorporating other evolutionary processes and concepts into eco‐evolutionary dynamics2023

    • Author(s)
      Yamamichi Masato、Ellner Stephen P.、Hairston Nelson G.
    • Journal Title

      Ecology Letters

      Volume: 26 Issue: S1

    • DOI

      10.1111/ele.14197

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Eco‐evolutionary maintenance of diversity in fluctuating environments2023

    • Author(s)
      Yamamichi Masato、Letten Andrew D.、Schreiber Sebastian J.
    • Journal Title

      Ecology Letters

      Volume: 26 Issue: S1

    • DOI

      10.1111/ele.14286

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Metagenomic analysis of ecological niche overlap and community collapse in microbiome dynamics2023

    • Author(s)
      Fujita Hiroaki、Ushio Masayuki、Suzuki Kenta、Abe Masato S.、Yamamichi Masato、Okazaki Yusuke、Canarini Alberto、Hayashi Ibuki、Fukushima Keitaro、Fukuda Shinji、Kiers E. Toby、Toju Hirokazu
    • Journal Title

      Frontiers in Microbiology

      Volume: 14 Pages: 1261137-1261137

    • DOI

      10.3389/fmicb.2023.1261137

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Alternative stable states, nonlinear behavior, and predictability of microbiome dynamics2023

    • Author(s)
      Fujita H, Ushio M, Suzuki K, Abe MS, Yamamichi Y, Iwayama K, Canarini A, Hayashi I, Fukushima K, Fukuda S, Kiers ET, Toju H
    • Journal Title

      Microbiome

      Volume: 11 Issue: 1 Pages: 63-63

    • DOI

      10.1186/s40168-023-01474-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mechanisms Underlying Variations in the Dentition Asymmetry of Asian Snail-Eating Snakes2022

    • Author(s)
      Hoso Masaki
    • Journal Title

      Ecological Research Monographs

      Volume: - Pages: 261-274

    • DOI

      10.1007/978-981-19-1342-6_9

    • ISBN
      9789811913402, 9789811913426
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geography-Dependent Horizontal Gene Transfer from Vertebrate Predators to Their Prey2022

    • Author(s)
      C. Kambayashi, R. Kakehashi, Y. Sato, H. Mizuno, H. Tanabe, A. Rakotoarison, S. Kunzel, N. Furuno, K. Ohshima, Y. Kumazawa, Z. T. Nagy, A. Mori, A. Allison, S. C. Donnellan, H. Ota, M. Hoso, T. Yanagida, H. Sato, M. Vences, A. Kurabayashi
    • Journal Title

      Molecular Biology and Evolution

      Volume: 39 Issue: 4

    • DOI

      10.1093/molbev/msac052

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] How does genetic architecture affect eco-evolutionary dynamics? A theoretical perspective2022

    • Author(s)
      Yamamichi Masato
    • Journal Title

      Philosophical Transactions of the Royal Society B: Biological Sciences

      Volume: 377 Issue: 1855 Pages: 20200504-20200504

    • DOI

      10.1098/rstb.2020.0504

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Idea paper: Controlling trait adaptation to decrease population densities for conservation and management2022

    • Author(s)
      Kasada Minoru、Yamamichi Masato
    • Journal Title

      Ecological Research

      Volume: - Issue: 4 Pages: 475-480

    • DOI

      10.1111/1440-1703.12300

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Terrigenous subsidies in lakes support zooplankton production mainly via a green food chain and not the brown food chain.2022

    • Author(s)
      Hirama F, Urabe J, Doi H, Kazama T, Noguchi T, Tappenbeck TH, Katano I, Yamamichi M, Yoshida T and Elser JJ.
    • Journal Title

      Front. Ecol. Evol.

      Volume: 10 Pages: 956819-956819

    • DOI

      10.3389/fevo.2022.956819

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Integrating eco‐evolutionary dynamics and modern coexistence theory2022

    • Author(s)
      Yamamichi Masato、Gibbs Theo、Levine Jonathan M.
    • Journal Title

      Ecology Letters

      Volume: 25 Issue: 10 Pages: 2091-2106

    • DOI

      10.1111/ele.14078

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extending the gleaner-opportunist trade‐off2022

    • Author(s)
      Yamamichi Masato、Letten Andrew D.
    • Journal Title

      Journal of Animal Ecology

      Volume: 91 Issue: 11 Pages: 2163-2170

    • DOI

      10.1111/1365-2656.13813

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Single-Gene Speciation, Balanced Polymorphism, and Antagonistic Coevolution in Left-Right Asymmetry of Land Snails2022

    • Author(s)
      Yamamichi Masato
    • Journal Title

      Lateral Asymmetry in Animals: Predator-Prey Interactions, Dynamics, and Evolution

      Volume: - Pages: 275-295

    • DOI

      10.1007/978-981-19-1342-6_10

    • ISBN
      9789811913402, 9789811913426
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dormancy and Diapause2022

    • Author(s)
      Hairston Nelson G.、Fox Jennifer A.、Yamamichi Masato
    • Journal Title

      Reference Module in Life Sciences

      Volume: - Pages: 15-20

    • DOI

      10.1016/b978-0-12-822562-2.00075-x

    • ISBN
      9780323984348
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] W15 オンラインコミュニティのすすめ2024

    • Author(s)
      細 将貴
    • Organizer
      日本生態学会 第71回横浜大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] H01-06 2つのパッチを移住する1宿主-2共生者系の動態:非同調による多様性維持(Dynamics of a one-host-two symbiont system migrating two patches: maintaining diversity through non-synchronization)2024

    • Author(s)
      嶋田正和・山道真人・山中武彦・細川貴弘
    • Organizer
      第71回日本生態学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] S04-6 多種共存の数理モデル2024

    • Author(s)
      山道真人
    • Organizer
      第71回日本生態学会大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] P-47 ヘビはなぜ臭うのか2023

    • Author(s)
      秋元洋希・細将貴
    • Organizer
      日本爬虫両棲類学会 第62回船橋大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] O2C-04 アリ群集における種内適応荷重理論のテスト(Testing the intraspecific adaptation load hypothesis in an ant community)2023

    • Author(s)
      辻和希・山道真人・植松潤平
    • Organizer
      第25回日本進化学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] P-59 有性生殖が複合ストレス下の個体群増殖率に与える影響:ミカヅキモを用いた培養実験2023

    • Author(s)
      川口也和子・山道真人
    • Organizer
      第39回個体群生態学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 捕食者と被食者の攻撃防御ゲームにおけるナッシュ均衡 (Nash equilibrium of attack and defense behaviors between predators and prey in game theory)2023

    • Author(s)
      一條裕之・中村友也・山道真人
    • Organizer
      第46回日本神経科学大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Evolutionary rescue with interspecific interactions2023

    • Author(s)
      Masato Yamamichi
    • Organizer
      Mathematical models of evolutionary rescue
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 迅速な進化と共存理論2023

    • Author(s)
      山道真人
    • Organizer
      第3回数理生物学夏の学校
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Eco-evolutionary dynamics of plankton communities2023

    • Author(s)
      Masato Yamamichi
    • Organizer
      総合学術高等研究院生物圏研究ユニット特別セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Eco-evolutionary dynamics and species coexistence2023

    • Author(s)
      Yamamichi Masato
    • Organizer
      第70回日本生態学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] カタツムリ食ヘビ類における非対称な歯列の決定過程2022

    • Author(s)
      細 将貴
    • Organizer
      日本動物学会 第93回 早稲田大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 右利きのヘビ」で解く、左巻きカタツムリの謎2022

    • Author(s)
      細 将貴
    • Organizer
      日本動物学会 第93回 早稲田大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Evolutionary rescue of coexistence theory2022

    • Author(s)
      Yamamichi Masato、Gibbs Theo、Levine Jonathan M.
    • Organizer
      Annual Meeting of Ecological Society of America and Canadian Society for Ecology and Evolution
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Character displacement or priority effects: Immigration timing can affect community assembly with rapid evolution2022

    • Author(s)
      Morita Keiichi、Yamamichi Masato
    • Organizer
      Annual Meeting of Ecological Society of America and Canadian Society for Ecology and Evolution
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Book] ミッテルバッハ・マギル群集生態学2023

    • Author(s)
      Gary G. Mittelbach、Brian J. McGill、門脇 浩明、山道 真人、内海 俊介
    • Total Pages
      380
    • Publisher
      丸善出版
    • ISBN
      9784621307977
    • Related Report
      2022 Annual Research Report

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Published: 2022-04-19   Modified: 2024-12-25  

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