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The effect of radiation on genetic diversity and natural selection in the population of the large Japanese field mouse

Research Project

Project/Area Number 15K21612
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental impact assessment
Biodiversity/Systematics
Research InstitutionFukushima University (2017-2018)
National Institute for Environmental Studies (2015-2016)

Principal Investigator

ISHINIWA Hiroko  福島大学, 環境放射能研究所, 特任助教 (00624967)

Research Collaborator ONUMA Manabu  
ENDO Daiji  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsJapanese field mouse / Caesium / Radiation / Apodemus speciosus / Mutation / Next generation sequence / 放射線 / アカネズミ / 次世代影響 / 次世代シーケンス / ゲノム
Outline of Final Research Achievements

In order to clarify the effect of radiation on gene mutation in the next generation of organisms, we established and analyzed gene analysis methods using the large Japanese field mice as bio-indicator. In the analysis method, we established a method to analyze larger number of exon sequences, which is a particularly important region, from the whole genome sequence of the field mice. Using this analysis method, preliminary analysis was performed on samples collected from 2012 to 2013. The mutation rate to the next generation in mice showed no significant difference from radiation contaminated area and control area.

Academic Significance and Societal Importance of the Research Achievements

放射線はDNAに変異を起こすため、変異が生殖系列で起きた場合、その影響は直接次世代へ継承される。また、放射線によるDNA変異はランダムに起きることから、全遺伝子領域を網羅する解析手法は放射線影響を解明するうえで必要不可欠である。本研究では次世代シーケンス技術を用いて個体と生殖細胞間の遺伝子全域の網羅的な解析を行うことにより、これらの課題を克服した。今後、さらに解析を進め影響の有無を明らかにすることで、福島県の地域住民の不安を払拭する一助になると考える。また、本研究で確立した解析手法は新たな化学物質による不確定な変異原影響を検出するためのスクリーニングの1つとして広く活用されると考えられる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (9 results)

All 2019 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Peer Reviewed: 1 results,  Open Access: 3 results) Presentation (4 results) (of which Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Institute for Nuclear Research/ChREBR/Ecocentre(ウクライナ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Concentration of radioactive materials in small mammals collected from a restricted area in Fukushima, Japan since 20122019

    • Author(s)
      Ishiniwa H, Okano T, Yoshioka A, Tamaoki M, Yokohata Y, Shindo J, Azuma N, Nakajima N, Onuma M
    • Journal Title

      Ecological Research

      Volume: 34 Issue: 1 Pages: 7-7

    • DOI

      10.1111/1440-1703.1016

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prediction of internal exposure by Cs-137 of ranbury collected in difficult-to-return area of Fukushima dai-ichi nuclear power plant 2 -EGS5 user code and internal exposure calculation from 2012 to 2016-2019

    • Author(s)
      Endoh Daiji, Hirayama Hideo, Ishiniwa Hiroko, Onuma Manabu
    • Journal Title

      KEK Proceedings

      Volume: 2018-13 Pages: 19-27

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] Estimation of Dose rate for the large Japanese Field Mice (Apodemus speciosus) Distributed in the “Difficult-to-Return Zones” in Fukushima Prefecture2019

    • Author(s)
      Onuma Manabu, Endoh Daiji, Ishiniwa Hiroko, Tamaoki Masanori
    • Journal Title

      Fukumoto Manabu Eds. Low-Dose-Rate Radiation Effects on Animals and Ecosystem -Long-Term Study on the Fukushima Daiichi Nuclear Power Plant Accident, Springer

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Presentation] 低線量放射線によるDNA変異の蓄積は起きているか?2017

    • Author(s)
      石庭寛子,松波雅俊,遠藤大二,大沼学,玉置雅紀
    • Organizer
      第64回日本生態学会
    • Place of Presentation
      早稲田大学(東京都新宿区)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Research-status Report
  • [Presentation] デュオサンプルを用いた変異検出解析-アカネズミにおける放射線の次世代影響評価-2017

    • Author(s)
      石庭寛子、松波雅俊、遠藤大二、玉置雅紀、大沼学
    • Organizer
      NGS現場の会第5回研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 放射線がアカネズミにもたらす影響-細胞レベルの評価から生態レベルへ-2017

    • Author(s)
      石庭寛子
    • Organizer
      日本生態学会東北地区会第62会大会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] アカネズミのゲノム情報を用いた放射線影響評価2016

    • Author(s)
      石庭寛子
    • Organizer
      日本哺乳類学会2016年度大会
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2016-09-23
    • Related Report
      2016 Research-status Report
  • [Remarks] 福島大学 環境放射能研究所

    • URL

      http://www.ier.fukushima-u.ac.jp/index.html

    • Related Report
      2018 Annual Research Report

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Published: 2015-04-16   Modified: 2022-11-04  

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