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The effect of epigenomic status on gene evolution

Research Project

Project/Area Number 18K06360
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 45020:Evolutionary biology-related
Research InstitutionThe Graduate University for Advanced Studies

Principal Investigator

Shohei Takuno  総合研究大学院大学, 先導科学研究科, 助教 (20547294)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsゲノム進化 / 集団遺伝学 / エピジェネティクス / エピゲノム進化
Outline of Final Research Achievements

I have been investigating how epigenomes evolve mainly in plant species. My main focus is gene body methylation that is found in transcribed regions and is observed in highly-expressed genes in plants and animals. My previous studies found that body-methylated genes tend to evolved more slowly than unmethylated genes in angiosperms. The DNA sequences of body-methylated genes are subject to negative natural selection. However, the reason why negative selection acts on body-methylated genes. The pattern of DNA methylation is associated with the distribution of nucleosomes in plant genomes. Thus, I hypothesized that negative selection work on body-methylated genes such that the position of nucleosomes are kept to be stable. I am now testing this hypothesis in Arabidopsis thaliana.

Academic Significance and Societal Importance of the Research Achievements

私の研究は、遺伝子の発現制御に関わるエピゲノムがどのように進化してきたかを明らかにすることである。昨今の次世代シークエンサーの発展により、エピゲノムデータの作出は非常に簡単になった。しかし、データの増加から予想されるほど、それぞれのエピゲノムがどのような機能を持つかは明らかになっていない。私の研究は、エピゲノムの存在意義を進化学の観点から解き明かすことであり、学術的意義があると考える。近年エピゲノムを人為的に改変する方法が少しずつ普及しており、将来的にエピゲノムの改変を品種改良に利用できるかもしれない。私の研究は、このための基礎研究に有用である。

Report

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

    (6 results)

All 2020 2019 2018

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

  • [Journal Article] Transcriptional regulation of genes bearing intronic heterochromatin in the rice genome2020

    • Author(s)
      Espinas Nino A.、Tu Le Ngoc、Furci Leonardo、Shimajiri Yasuka、Harukawa Yoshiko、Miura Saori、Takuno Shohei、Saze Hidetoshi
    • Journal Title

      PLOS Genetics

      Volume: 16 Issue: 3 Pages: e1008637-e1008637

    • DOI

      10.1371/journal.pgen.1008637

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Single-cell expression noise and gene-body methylation in Arabidopsis thaliana2019

    • Author(s)
      Horvath Robert、Laenen Benjamin、Takuno Shohei、Slotte Tanja
    • Journal Title

      Heredity

      Volume: 印刷中 Issue: 2 Pages: 81-91

    • DOI

      10.1038/s41437-018-0181-z

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genome-wide characterization of DNA methylation, small RNA expression, and histone H3 lysine nine di-methylation in Brassica rapa L.2018

    • Author(s)
      Takahashi Satoshi、Osabe Kenji、Fukushima Naoki、Takuno Shohei、Miyaji Naomi、Shimizu Motoki、Takasaki-Yasuda Takeshi、Suzuki Yutaka、Dennis Elizabeth S、Seki Motoaki、Fujimoto Ryo
    • Journal Title

      DNA Research

      Volume: 25 Issue: 5 Pages: 511-520

    • DOI

      10.1093/dnares/dsy021

    • NAID

      120006552896

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The evolution of gene body methylation in plant species.2019

    • Author(s)
      Shohei Takuno
    • Organizer
      第13回日本エピジェネティクス研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] On the presence of CHG methylation in plant gene bodies.2018

    • Author(s)
      宅野将平
    • Organizer
      日本遺伝学会 第90回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] The evolution of gene body methylation in plant species.2018

    • Author(s)
      Shohei Takuno
    • Organizer
      Society for Molecular Biology and Evolution Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited

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

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