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Analysis of the composition of a mixed sample of closely related organisms using next-generation DNA barcoding

Research Project

Project/Area Number 21K19103
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 39:Agricultural and environmental biology and related fields
Research InstitutionTohoku University

Principal Investigator

Suyama Yoshihisa  東北大学, 農学研究科, 教授 (60282315)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords次世代DNAシーケンシング / DNA品種識別 / 古代DNA / 環境DNA / 品種偽装抑止 / MPM-seq法 / MIG-seq法 / 次世代シーケンシング / メタゲノム / 品種鑑定 / ゲノムワイドSNP分析
Outline of Research at the Start

本研究代表者らが開発した次世代DNAシーケンシング技術であるMIG-seq法を用いれば、例えば親子関係にあるようなごく近縁な個体・品種のDNA試料であっても、短い配列を対象とした多数の情報に基づいて、極めて高精度にそれらを識別することができる。本研究では、この技術をさらに一歩進め、種内レベルの近縁な生物組織の混合試料を対象として、その構成を明らかにする技術開発を実施する。これにより、混合試料用の新たなDNAバーコーディング法を完成させ、幅広く応用可能な技術として醸成する。

Outline of Final Research Achievements

We developed a DNA analysis technology to clarify the composition of mixed samples of closely related biological tissues. Specifically, we 1) identified the constituent varieties of processed foods, and 2) analyzed the composition of plant species contained in sedimentary soil. Regarding 1), we demonstrated that basic compositional analysis is possible with simple mixed samples using commercially available processed foods of legume varieties by applying the MIG-seq method (Suyama and Matsuki, 2015). Regarding 2), in addition to samples of sedimentary soil under typical forest vegetation, sedimentary soil of ancient ruins was also used as a target sample, and the MPM-seq (Suyama et al. 2022) and target capture methods were used to analyze them. It has become clear that analysis is possible.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、加工食品等において使用されているごく近縁な品種を見分けることができることを示しているため、たとえば品種偽装を抑止できる可能性がある。また、たとえば環境DNA分析においてより近縁な生物種等を識別できる可能性を示している。特に考古学における古代DNA分析において、過去に存在していた近縁種の識別を可能にするだけでなく、たとえば地域系統の識別や個体数の推定など、その応用の範囲は広いため、この分野の研究の進展に寄与できると考えられる。

Report

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

    (10 results)

All 2024 2023 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results)

  • [Journal Article] MIG-seq法を用いたゲノムワイドSNP分析による森林遺伝学研究2023

    • Author(s)
      陶山佳久
    • Journal Title

      Forest Genetics and Tree Breeding

      Volume: 12 Issue: 2 Pages: 63-67

    • DOI

      10.32135/fgtb.12.2_63

    • ISSN
      2187-3453, 2187-350X
    • Year and Date
      2023-04-25
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 標本および土壌より抽出した植物 DNA の分析手法の検討2024

    • Author(s)
      濵津幸大・石川直子・髙橋大樹・陶山佳久
    • Organizer
      日本植物分類学会第23回仙台大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 次世代シーケンシング技術を用いた食用きのこ品種のDNA鑑定技術開発2023

    • Author(s)
      陶山佳久
    • Organizer
      糸状菌遺伝子研究会 第43回例会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 新しいDNA分析技術による個体・集団・種の高精度識別と系統解析2023

    • Author(s)
      陶山佳久
    • Organizer
      宮城植物の会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Next-generation biodiversity monitoring using genome-wide SNPs and eDNA analysis2023

    • Author(s)
      Yoshihisa Suyama
    • Organizer
      International Symposium on Environmental DNA for Conservation and Biomonitoring in Southeast Asia
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Current and future application of the MIG-seq and MPM-seq methods for eDNA study2023

    • Author(s)
      Yoshihisa Suyama
    • Organizer
      4th International Workshop for Mangrove Biodiversity Studies by eDNA Metabarcoding 2023
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 森林及び古代土壌を対象とした植物環境DNA分析2023

    • Author(s)
      濵津幸大,髙橋大樹,石川直子,陶山佳久
    • Organizer
      日本生態学会東北地区会大会第68回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Forest genetic studies using genome-wide SNP data by MIG-seq analysis2022

    • Author(s)
      Yoshihisa Suyama
    • Organizer
      Forest Genetics and Tree Breeding: past progress and future prospects, The 10th Anniversary International Symposium of Japanese Society of Forest Genetics and Tree Breeding
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of plant environmental DNA analysis method for forest soil2022

    • Author(s)
      Kodai Hamatsu, Hiroya Taguchi, Daiki Takahashi, Yoshihisa Suyama
    • Organizer
      The 20th International Symposium on Integrated Field Science“Biodiversity and Phylogeography”
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] MIG-seq法:DNA品種識別のための新しい手法の有効性2022

    • Author(s)
      陶山佳久
    • Organizer
      魅力あふれる農林水産業へ!タネからはじまる新たな未来「DNAで農林水産分野の未来を開く」キックオフイベント
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-07-13   Modified: 2025-01-30  

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