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Creation of lipid-hyper-producing Coccomyxa strains by utilizing transcriptome big data

Research Project

Project/Area Number 18K05561
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38060:Applied molecular and cellular biology-related
Research InstitutionChuo University

Principal Investigator

KASAI YUKI  中央大学, 研究開発機構, 専任研究員 (20416572)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsバイオディーゼル / 単細胞性緑藻 / トランスクリプトーム / ゲノム編集 / セルフクローニング / Coccomyxa属緑藻 / 生物学的封じ込め / 油脂蓄積 / ストレス応答 / 転写活性解析 / ゲノム編集技術 / 遺伝子破壊 / DYRK遺伝子 / TOR遺伝子 / RNA-seq
Outline of Final Research Achievements

Coccomyxa mutants deficient in a DYRK1 accumulate lipids twice as fast as wild type strain. The transcriptome analysis showed that a lot of genes involved in lipid production were induced earlier in the DYRK1 mutants than in wild-type strain. For the breeding of Coccomyxa, DYRK1 gene was disrupted by CRISPR/Cas9-based genome editing method. CNX1G disrupted mutants that is unable to assimilate nitrate as a nitrogen source also created to prevent the leakage to outer environments.

Academic Significance and Societal Importance of the Research Achievements

本研究成果はCoccomyxa属以外の微細藻類にも適用可能であり、微細藻が生産するバイオディーゼルの産業利用を促進することで化石燃料の使用量を減らしCO2排出削減に貢献することができる。また、本研究成果は油脂以外の機能性物質生産にも適用可能で、微細藻類を利用した有用物質生産の産業利用を促進することが期待できる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2019

All Presentation (1 results)

  • [Presentation] GUSリポーター遺伝子を用いた単細胞性緑藻Coccomyxaのプロモーター活性評価2019

    • Author(s)
      大迫香穂、笠井由紀、阿部淳、高木さつき、井出曜子、原山重明
    • Organizer
      生物工学会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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