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Elucidation of genetic mechanisms connecting panicle patterning and inflorescence meristem organization.

Research Project

Project/Area Number 26450007
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Science in genetics and breeding
Research InstitutionAkita Prefectural University

Principal Investigator

Nagasawa Nobuhiro  秋田県立大学, 生物資源科学部, 准教授 (90599268)

Co-Investigator(Kenkyū-buntansha) 永澤 奈美子 (佐藤奈美子 / 永澤 奈美子(佐藤奈美子))  秋田県立大学, 生物資源科学部, 准教授 (00535289)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords穂 / イネ / 分枝パターン / 分裂組織 / 突然変異体 / 発生 / 花 / メリステム / 花序 / パターン形成
Outline of Final Research Achievements

We made attempts to isolate new inflorescence branching pattern mutants for isolation of new key genes controlling panicle architecture. Several mutants were selected for the new traits that have not been reported, which would illuminate mechanisms underlying pattern formation of rice panicle morphology. In the efforts to elucidate the mechanisms connecting between genes controlling panicle branching pattern and meristem organization, we constructed double mutants between lonely guy(log) and panicle patterning mutants. So far we have identified a population segregating both log and moc1 mutants, indicating analysis of mutants in the population lead to identification of log moc1, may elucidate the role of cytokinin in the moc1 controlling branching pathway. We also introduced DR5 driven DSRED gene into aberrant panicle organization2 (apo2) mutant to investigate the auxin accumulation pattern under apo2 background.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (9 results)

All 2017 2016 2015 2014

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (6 results)

  • [Journal Article] Genetic Analysis of Cadmium Accumulation in Shoots of Sorghum Landraces2017

    • Author(s)
      Kana Tsuboi et al.
    • Journal Title

      Crop Science

      Volume: 57 Issue: 1 Pages: 22-31

    • DOI

      10.2135/cropsci2016.01.0069

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elevated ozone deteriorates grain quality of japonica rice cv. Koshihikari, even if it does not cause yield reduction2016

    • Author(s)
      Sawada, H., Tsukahara, K., Kohno, Y., Suzuki, K., Nagasawa, N., Tamaoki, M.
    • Journal Title

      Rice

      Volume: 9 Issue: 1 Pages: 7-7

    • DOI

      10.1186/s12284-016-0079-4

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Application of T-DNA activation tagging to identify glutamate receptor-like genes that enhance drought tolerance in plants2014

    • Author(s)
      2)Lu G, Wang X, Liu J, Yu K, Gao Y, Liu H, Wang C, Wang W, Wang G, Liu M, Mao G, Li B, Qin J, Xia M, Zhou J, Liu J, Jiang S, Mo H, Cui J, Nagasawa N, Sivasankar S, Albertsen MC, Sakai H, Mazur BJ, Lassner MW, Broglie RM.
    • Journal Title

      Plant Cell Rep

      Volume: 33 Pages: 617-631

    • Related Report
      2014 Research-status Report
  • [Presentation] KOROPOKKUR遺伝子はイネの細胞分裂及び栄養成長期の相転換に必須である2017

    • Author(s)
      佐藤(永澤)奈美子、永澤信洋、長戸康郎、Yousra El Mannail、我彦廣悦
    • Organizer
      日本育種学会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2017-03-29
    • Related Report
      2016 Annual Research Report
  • [Presentation] KORPOKKUR遺伝子は正常な細胞分裂と栄養成長期の相転換に必須である2016

    • Author(s)
      佐藤(永澤)奈美子、永澤信洋、上田健二、長戸康郎、我彦廣悦
    • Organizer
      日本植物生理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2016-03-18
    • Related Report
      2015 Research-status Report
  • [Presentation] イネ胚乳で発現するREDUCED EMBRYO1(RE1),RE2は胚、胚乳比率を制御する2015

    • Author(s)
      小林裕美、永澤信洋、佐藤豊、伊藤純一、 Sakai Hajime、長戸康郎、桧原健一郎
    • Organizer
      日本育種学会
    • Place of Presentation
      玉川大学
    • Year and Date
      2015-03-22
    • Related Report
      2014 Research-status Report
  • [Presentation] 栄養生長を続ける新規イネ突然変異体の解析と原因遺伝子の解明2015

    • Author(s)
      佐藤(永澤)奈美子、永澤信洋、長戸康郎
    • Organizer
      日本育種学会
    • Place of Presentation
      玉川大学
    • Year and Date
      2015-03-22
    • Related Report
      2014 Research-status Report
  • [Presentation] イネ体細胞のDNA倍数性に影響を与える遺伝子の解析2015

    • Author(s)
      栂根美佳、井上慎子、栂根一夫、寺内良平、永澤信洋、前川雅彦、伊藤正樹
    • Organizer
      日本植物生理学会
    • Place of Presentation
      東京農業大学
    • Year and Date
      2015-03-18
    • Related Report
      2014 Research-status Report
  • [Presentation] イネ体細胞のDNA倍数性に影響を与える遺伝子の解析2014

    • Author(s)
      栂根美佳、井上慎子、栂根一夫、寺内良平、永澤信洋、前川雅彦、伊藤正樹
    • Organizer
      日本分子生物学会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2014-11-25
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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