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Analysis of the mechanism regulating gene expression of CiFT in flowering control of citrus

Research Project

Project/Area Number 25450053
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Horticultural science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

ENDO Tomoko  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門 カンキツ研究領域, 上級研究員 (50355400)

Co-Investigator(Kenkyū-buntansha) SHIMADA Takehiko  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門 カンキツ研究領域, ユニット長 (10355399)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords花成制御 / カンキツ / プロモーター / 花成促進遺伝子 / 形質転換体 / 遺伝子発現
Outline of Final Research Achievements

CiFT (Citrus FT), gene promotes floral induction, the transition from vegetative to reproductive growth, is important for the transition from the juvenile to the adult tree phase and annual seasonal flowering in citrus. In this study, the mechanism regulating gene expression of CiFT was analyzed, focusing involvement of abscisic acid (ABA) which is a phytohormone, known to be induced by low ambient temperature or drought. These environmental conditions are important for citrus floral induction.
As a result, we have identified a promoter sequence of CiFT and found it responds to low ambient temperature. We also found that exogenous ABA treatment have potential to induce flowering of citrus tree. These results provide basic information for physiological study and development of novel technique in flowering control of citrus.

Report

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

    (1 results)

All 2014

All Patent(Industrial Property Rights) (1 results)

  • [Patent(Industrial Property Rights)] カンキツの着花制御法2014

    • Inventor(s)
      島田朋子,島田武彦,生駒吉識
    • Industrial Property Rights Holder
      国立研究開発法人農業・食品産業技術総合研究機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2014-117322
    • Filing Date
      2014-06-06
    • Related Report
      2014 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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