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Response of biodiversity to environmental changes explored by comparative analysis of demographic information in genomes

Research Project

Project/Area Number 18H02496
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 InstitutionKyoto University

Principal Investigator

Isagi Yuji  京都大学, 農学研究科, 教授 (50325130)

Co-Investigator(Kenkyū-buntansha) 陶山 佳久  東北大学, 農学研究科, 教授 (60282315)
伊津野 彩子  国立研究開発法人森林研究・整備機構, 森林総合研究所, 研究員 (80816249)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords生物多様性 / 適応放散 / ゲノム解読 / PSMC / 種分化 / 隠蔽種 / 個体群動態 / 保全ゲノミクス / 比較デモグラフィー / 新規ゲノム解読 / ニューカレドニア / 保全ゲノムクス / デモグラフィー / MINion
Outline of Final Research Achievements

We performed genome resequencing of 25 taxa among about 30 species of Oxera and compared their population dynamics over the past several million years using the PSMC method. As a result, we found that the populations of most species have increased due to the exploitation of new niches associated with adaptive and divergent speciation. On the other hand, species adapted to ultrabasic soils have maintained their small populations.
In addition, we estimated population dynamics in detail and accurately by low coverage genome sequencing and stairway plot, and clarified the phylogenetic position of each species, population, and individual by genome condensation decoding using MIG-seq method for 1370 samples of 38 species including 11 new species candidates.

Academic Significance and Societal Importance of the Research Achievements

様々な生態系において人為活動により生物多様性は劣化しつつある。本研究は、生物多様性ホットスポットであるニューカレドニアにおいて、過去数百万年の間に種分化を繰り返してきたOxera属25種を対象に、適応的種分化によって生物多様性が創出されてきた過程を最新のゲノム解析技術によって明らかにしたものである。本成果は、生物多様性創出機構の解明という学術的意義に加えて、生物多様性に生態系機能、生物資源、文化的意義など多面的な価値があることが認識されつつある現在、社会的にも意義のある成果といえる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (18 results)

All 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (15 results) (of which Int'l Joint Research: 3 results,  Invited: 6 results)

  • [Int'l Joint Research] Institut Agronomique neo-Caledonien(その他の国・地域)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 森林遺伝育種学的研究におけるMIG-seq法の利用2019

    • Author(s)
      陶山佳久
    • Journal Title

      森林遺伝育種

      Volume: 印刷中

    • NAID

      130007637943

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 島嶼性固有植物の保全ゲノミクス2019

    • Author(s)
      井鷺裕司・兼子伸吾・安倍哲人・伊津野彩子・牧野能士
    • Journal Title

      森林科学

      Volume: 印刷中

    • NAID

      130007676732

    • Related Report
      2018 Annual Research Report
  • [Presentation] PSMC法によるニューカレドニア準固有Oxera属 (シソ科)24種の過去の個体群動態比較2020

    • Author(s)
      河合良弥、伊津野彩子、陶山佳久、Gildas Gatable、井鷺裕司
    • Organizer
      種生物学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 新規全ゲノム解読に基づくニューカレドニア産シソ科植物の比較デモグラフィー2020

    • Author(s)
      河合良弥、伊津野 彩子、陶山 佳久、Gildas Gateble、井鷺 裕司
    • Organizer
      第67回生態学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] MIG-seq分析によるニューカレドニア産シソ科Oxera属の隠蔽種の発見2020

    • Author(s)
      長岡麟平, Gildas Gateble, 井鷺裕司, 陶山佳久
    • Organizer
      日本生態学会第67回全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ニューカレドニア産準固有属Oxera(シソ科)の個体群動態推定のためのde novo全ゲノムアセンブル2019

    • Author(s)
      河合良弥、伊津野 彩子、陶山 佳久、Gildas Gateble、井鷺 裕司
    • Organizer
      第51回種生物学会シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] MIG-seq法によるゲノム情報により示されたニューカレドニア産シソ科Oxera palmatinerviaの近縁隠蔽種の可能性2019

    • Author(s)
      長岡麟平、佐藤光彦、廣田峻、松尾歩、Gildas Gateble, 井鷺裕司、陶山佳久
    • Organizer
      第51回種生物学シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] ゲノム情報を活用した生物多様性保全2019

    • Author(s)
      井鷺裕司
    • Organizer
      第28回DNA多型学会大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Introduction of next-generation biodiversity assessment using MIG-seq2019

    • Author(s)
      Yoshihisa Suyama
    • Organizer
      The 11th APBON Workshop -Asia-Pacific Biodiversity Observation Network
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ゲノムワイドSNP分析によるニューカレドニア産シソ科Oxera属における隠蔽種の発見2019

    • Author(s)
      長岡麟平, 佐藤光彦, 廣田峻, 松尾歩, Gildas Gateble, 井鷺裕司, 陶山佳久
    • Organizer
      日本生態学会東北地区会第64回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] MIG-seq法を用いた絶滅危惧植物の保全遺伝学的解析2019

    • Author(s)
      陶山佳久
    • Organizer
      第66回日本生態学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] MIG-seq法:次世代シーケンサーを用いた手軽なゲノムワイド塩基配列分析2019

    • Author(s)
      陶山佳久
    • Organizer
      日本農芸化学会2019年度東京大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] MIG-seq and multiplexed DNA barcoding: efficient tool for phylogeography and conservation genetics2018

    • Author(s)
      Yoshihisa Suyama, Ayumi Matsuo, Shun Hirota
    • Organizer
      The 2nd International Academic Conference on the Formation Mechanism of Plant Diversity and Conservation of Endangered Plants in East Asia
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 森林遺伝育種学的研究のためのMIG-seq(multiplexed ISSR genotyping by sequencing)法の開発2018

    • Author(s)
      陶山佳久
    • Organizer
      森林遺伝育種学会第7回大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 次世代シーケンサーを用いた手軽な分子系統・集団遺伝解析2018

    • Author(s)
      陶山佳久
    • Organizer
      日本生態学会東北地区会第63回弘前大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] MIG-seqとマルチプレックスDNAバーコーディングによる分子系統・集団遺伝解析2018

    • Author(s)
      陶山佳久
    • Organizer
      第50回種生物学シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Genetic diversity, population demography and adaptation of Oxera baladica (Lamiaceae) and an undescribed species in New Caledonia.2018

    • Author(s)
      Ryosuke Imai, Kohei Kamasaka, Dominique Fleurot, Gildas Gatable, Ayu Narita, Kentaro Uchiyama, Yoshihisa Suyama, Yoshiaki Tsuda, Yuji Isagi
    • Organizer
      The 8th East Asian Federation of Ecological Societies (EAFES) International Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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