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DNA analysis of ancient pollen in an ice core and reconstruction of past environments in a semi-arid region of Central Asia

Research Project

Project/Area Number 16K00529
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental dynamic analysis
Research InstitutionNational Institute of Polar Research

Principal Investigator

Nakazawa Fumio  国立極地研究所, 研究教育系, 助教 (80432178)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords氷河 / 花粉 / DNA / アイスコア / 天山山脈 / アルタイ山脈 / ロシア・アルタイ山脈 / 中央アジア
Outline of Final Research Achievements

This study attempted to identify ancient pollen by whole genome amplification method one by one. The ancient pollen grains used in this study were extracted from an ice core obtained from the Belukha glacier, Russian Altai Mountains, in the summer of 2003.
We succeeded in reading DNA in Abies and Picea pollen grains at around 470 years old and an Abies pollen at around 4870 years old. Subsequently, we attempted to identify Picea pollen grains at species level. Picea includes approximately 35 recognized species. Five species, including Picea obovata, were thought as a possible candidate for the Picea pollen. The tree species Picea obovata is currently found at the periphery of the glacier. Therefore, Picea obovate likely have been distributing around the glacier in at least the past 470 years.

Academic Significance and Societal Importance of the Research Achievements

本研究で得た成果の学術的な意義は、アイスコアに含まれる古代花粉のDNA分析をおこない、その遺伝情報の解読に成功したことにより、過去の生物集団の遺伝的情報を直接得る道を切り開いた点にある。また、アイスコ試料の特性から、過去に遡って経時的に再構築できる点も意義は大きい。
アイスコアに含まれる古代花粉だけでなく古代微生物までも対象とし、研究を発展させれば、その成果をモデルケースとして、今後の気候変動が生物多様性に与える影響を考えるヒントとなる。また、生物保全への対応を探る基礎的な情報を提供することもできるだろう。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2018 2016 Other

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

  • [Journal Article] Species Identification of Pinus Pollen Found in Belukha Glacier, Russian Altai Mountains, Using a Whole-Genome Amplification Method2018

    • Author(s)
      Nakazawa Fumio、Suyama Yoshihisa、Imura Satoshi、Motoyama Hideaki
    • Journal Title

      Forests

      Volume: 9 Issue: 8 Pages: 444-444

    • DOI

      10.3390/f9080444

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] DNA analysis of 470-year-old Pinus pollen grains preserved in a Russian glacier2016

    • Author(s)
      Nakazawa, F., Y. Suyama, S. Imura, H. Motoyama, N. Takeuchi, K. Fujita, J. Uetake
    • Organizer
      The Seventh Symposium on Polar Science
    • Place of Presentation
      National Institute of Polar Research
    • Year and Date
      2016-12-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ベルーハ氷河に含まれていた470年前のマツ属花粉のDNA分析2016

    • Author(s)
      中澤文男, 陶山佳久, 伊村智, 本山秀明, 竹内望, 藤田耕史, 植竹淳
    • Organizer
      雪氷研究大会(2016・名古屋)
    • Place of Presentation
      名古屋大学
    • Year and Date
      2016-09-30
    • Related Report
      2016 Research-status Report
  • [Presentation] アイスコアに含まれる花粉を利用した植物種の古代ゲノム解析の可能性2016

    • Author(s)
      中澤文男, 陶山佳久, 伊村智, 本山秀明
    • Organizer
      日本地球惑星科学連合2016年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2016-05-25
    • Related Report
      2016 Research-status Report
  • [Remarks]

    • URL

      https://researchmap.jp/f_nakazawa/

    • Related Report
      2018 Research-status Report
  • [Remarks]

    • URL

      http://researchmap.jp/f_nakazawa/?lang=japanese

    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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