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Elucidation of the influence of differences in epiphytic substrates on the dispersal ability and geographical genetic structure of seaweeds

Research Project

Project/Area Number 21K06304
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionKitasato University (2022-2023)
Kobe University (2021)

Principal Investigator

Hanyuda Takeaki  北里大学, 海洋生命科学部, 講師 (40379334)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords地理的遺伝構造 / 海藻類 / 着生基質 / 分散能力 / 海藻
Outline of Research at the Start

海洋生物の地域集団間の遺伝的分化の程度や種内の地理的遺伝構造には,分散能力の違いから大きな影響を及ぼすことが明らかになっている。近年の研究等により海藻類が着生する基質の違いが地理的遺伝構造の違いに影響を及ぼす可能性が示唆されたものの,未だ不明な点が多い。
本研究は,日本沿岸に広く分布し近縁種間で主な着生基質が異なる海藻類を対象として,地域集団間及び集団内の遺伝的多様性の違いを基にそれぞれの種の分散能力や地理的遺伝構造を明らかにするとともに,着生基質の違いがもたらす影響を明らかにすることを目的とする。

Outline of Final Research Achievements

The dispersal ability and geographical distribution of several macro algal species were investigated, based on the differences in genetic diversity between and within regional populations. The macro algal species, that are widely distributed along the coast of Japan, and whose main epiphyte substrates differ among closely related species, were focused. The aim was to clarify the genetic structure and the effects of different epiphyte substrates. As the results of genetic analyses, no geographical genetic structure was observed in Petalonia fascia. On the other hand, P. binghamiae, a closely related species, had a clear geographical genetic structure.

Academic Significance and Societal Importance of the Research Achievements

海洋生物の地域集団間の遺伝的分化の程度や種内の地理的遺伝構造には,分散能力の違いが大きな影響を及ぼすことが明らかになっている。気泡の有無などにより種間の浮力の違いが非常に大きい海藻類は,分散能力の違いと遺伝的分化の関係について研究するのに非常に適した生物であるが,日本沿岸に生育する海藻類の分散能力については未だ不明な点が多い。
本研究は,褐藻類の近縁種を対象として比較解析を行い,着生基質の違いによる分散能力の違いが影響したと推測される地理的遺伝構造の有無を明らかにした。この点において学術的な意義があるものと考える。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (2 results) (of which Invited: 1 results)

  • [Journal Article] New record of Sporochnus dotyi (Sporochnales, Phaeophyceae) from Kii Peninsula, Japan2023

    • Author(s)
      Kawai Hiroshi、Sherwood Alison R.、Ui Shinsuke、Hanyuda Takeaki
    • Journal Title

      Phycological Research

      Volume: 71 Issue: 2 Pages: 100-106

    • DOI

      10.1111/pre.12514

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Taxonomic revision of Tinocladia (Ectocarpales s.l., Phaeophyceae): merger of Tinocladia with Eudesme and description of E. pseudocrassa sp. nov2023

    • Author(s)
      Kawai Hiroshi、Takeuchi Kazusa、Hanyuda Takeaki、Brodie Juliet、Mrowicki Rob、Miller Kathy Ann、Nelson Wendy
    • Journal Title

      European Journal of Phycology

      Volume: 58 Issue: 4 Pages: 469-479

    • DOI

      10.1080/09670262.2023.2183265

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel mesophotic kelp forests in the Galapagos archipelago2022

    • Author(s)
      Buglass Salome、Kawai Hiroshi、Hanyuda Takeaki、Harvey Euan、Donner Simon、De la Rosa Julio、Keith Inti、Bermudez Jorge Rafael、Altamirano Maria
    • Journal Title

      Marine Biology

      Volume: 169 Issue: 12 Pages: 156-156

    • DOI

      10.1007/s00227-022-04142-8

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Providing a phylogenetic framework for trait-based analyses in brown algae: Phylogenomic tree inferred from 32 nuclear protein-coding sequences2022

    • Author(s)
      Akita Shingo、Vieira Christophe、Hanyuda Takeaki、Rousseau Florence、Cruaud Corinne、Couloux Arnaud、Heesch Svenja、Cock J. Mark、Kawai Hiroshi
    • Journal Title

      Molecular Phylogenetics and Evolution

      Volume: 168 Pages: 107408-107408

    • DOI

      10.1016/j.ympev.2022.107408

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Molecular evidence for naturally occurring intra- and inter-generic hybridization in the genus Ecklonia (Laminariales, Phaeophyceae)2021

    • Author(s)
      Akita Shingo, Koiwai Keiichiro, Ishikawa Tatsuya, Sakamoto Takashi, Yoshimura Taku, Kiyomoto Setsuo, Nanri Kaiji, Tamayama-Kato You, Kurashima Akira, Hanyuda Takeaki, Shimada Satoshi, Kawai Hiroshi, Fujita Daisuke
    • Journal Title

      Phycologia

      Volume: 60 Issue: 2 Pages: 170-179

    • DOI

      10.1080/00318884.2021.1885246

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Whole‐genome sequencing reveals forgotten lineages and recurrent hybridizations within the kelp genus <i>Alaria</i> (Phaeophyceae)2021

    • Author(s)
      Bringloe Trevor T.、Zaparenkov Dani、Starko Samuel、Grant William Stewart、Vieira Christophe、Kawai Hiroshi、Hanyuda Takeaki、Filbee‐Dexter Karen、Klimova Anna、Klochkova Tatyana A.、Krause‐Jensen Dorte、Olesen Birgit、Verbruggen Heroen
    • Journal Title

      Journal of Phycology

      Volume: 57 Issue: 6 Pages: 1721-1738

    • DOI

      10.1111/jpy.13212

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discovery of a novel brown algal genus and species Setoutiphycus delamareoides (Phaeophyceae, Ectocarpales) from the Seto Inland Sea, Japan2021

    • Author(s)
      Kawai Hiroshi、Hanyuda Takeaki
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s41598-021-93320-7

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Taxonomic revision of Saundersella (Ectocarpales s.l., Phaeophyceae) with description of Saundersella crassa sp. nov. and transfer of Heterosaundersella hattoriana to Saundersella2021

    • Author(s)
      Kawai Hiroshi、Watanabe Yuki、Hanyuda Takeaki
    • Journal Title

      Phycologia

      Volume: 60 Issue: 3 Pages: 274-281

    • DOI

      10.1080/00318884.2021.1916859

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Taxonomy and species diversity of <i>Padina</i> (Dictyotales, Phaeophyceae) from the Indo-Pacific with the description of two new species2021

    • Author(s)
      Win Ni-Ni-、Wai Mya-Kyawt-、Geraldino Paul John L.、Liao Lawrence M.、Aye Chaw-Thiri P. P.、Mar Ni Ni、Hanyuda Takeaki、Kawai Hiroshi、Tokeshi Mutsunori
    • Journal Title

      European Journal of Phycology

      Volume: 57 Issue: 1 Pages: 1-17

    • DOI

      10.1080/09670262.2021.1883742

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The macroalgal culture collection in Kobe University (KU-MACC), and a comprehensive molecular phylogeny of macroalgae based on the culture strains.2020

    • Author(s)
      Kawai, H., Hanyuda, T., Akita, S., Uwai, S.
    • Journal Title

      Applied Phycology

      Volume: - Issue: 1 Pages: 159-166

    • DOI

      10.1080/26388081.2020.1745685

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 小笠原諸島父島で食用にされている海藻「ハバノリ」(褐藻綱カヤモノリ目)について2024

    • Author(s)
      北山太樹・鈴木雅大・羽生田岳昭
    • Organizer
      日本水産学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 海藻類の越境移入・東日本大震災と付着生物の移動2023

    • Author(s)
      羽生田岳昭
    • Organizer
      日本付着生物学会
    • Related Report
      2023 Annual Research Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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