Unraveling flowering system of Japanese beech tree affected by external environments

• Project/Area Number: 26450209
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: Ohmiya Yasunori 国立研究開発法人森林総合研究所, 樹木分子遺伝研究領域, 主任研究員 (70360469)
• Co-Investigator(Kenkyū-buntansha): 上村 松生 岩手大学, 農学部, 教授 (00213398) ; 赤田 辰治 弘前大学, 農学生命科学部, 准教授 (10250630) ; 齋藤 秀之 北海道大学, 農学研究院, 講師 (70312395)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: ブナ / 花芽形成 / 環境応答

Outline of Final Research Achievements

FT gene from Japanese beech tree (Fagus crenata) (FcFT) transcripts increased in the leaves of flowered branches a year before. The result suggests application of FcFT gene expression pattern as prediction indicator of flowering following year, by measuring FcFT gene expression. E-box motif induced by blue light and motifs induced by white light were identified from FcFT gene regulated promoter sequences. Arabidopsis PIF4 homologue FcPIF3 expression pattern was positively correlated with FcFT expression. This correlation suggests that FcPIF4 transcript directly induce FcFT gene as formerly reported in Arabidopsis. Several proteins in which their production amounts are influenced by temperature were also identified by proteomics analysis.

Research Products

• [Journal Article] 細胞分裂から見たブナ花成の制御時期 (2017)
  • Author(s): 和田尚之・斎藤秀之・小林壱德久・星野洋一郎
  • Journal Title: 北方森林研究 Volume: 65 Pages: 39-42
  • NAID: 130008094420
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] ブナ花成のエピジェネティック制御 ―DNAメチル化の決定時期と養分の影響― (2017)
  • Author(s): 和田尚之・斎藤秀之・小林壱德久・星野洋一郎
  • Organizer: 第128回日本森林学会
  • Place of Presentation: 鹿児島大学（鹿児島県鹿児島市）
  • Year and Date: 2017-03-26
• [Presentation] 乾燥ストレスによるブナ実生の成長遅延と乾燥応答性FcMYB1603の発現 (2016)
  • Author(s): 國嶋俊輔、鳥丸猛、大宮泰徳、赤田辰治
  • Organizer: 日本森林学会大会
  • Place of Presentation: 日本大学生物資源科学部（神奈川県藤沢市）
  • Year and Date: 2016-03-27
• [Presentation] ブナFT遺伝子の単離と発現解析 (2016)
  • Author(s): 大宮泰徳、杉山奏澄、松田修一、井頭千明、宮本尚子、赤田辰治
  • Organizer: 日本植物生理学会
  • Place of Presentation: 岩手大学上田キャンパス（盛岡市）
  • Year and Date: 2016-03-18
• [Presentation] 細胞分裂から見たブナ花成の制御時期 (2016)
  • Author(s): 和田尚之・斎藤秀之・小林壱徳久・星野洋一郎
  • Organizer: 北方森林学会
  • Place of Presentation: 札幌コンベンションセンター（北海道札幌市）
• [Presentation] ブナにおけるTFL遺伝子の同定とその発現解析 (2015)
  • Author(s): 八木橋麻美、大宮泰徳、宮本尚子、赤田辰治
  • Organizer: 東北植物学会
  • Place of Presentation: 福島大学（福島市）
  • Year and Date: 2015-12-19
• [Presentation] 産地の異なるブナ実生の乾燥条件下における成長量の変異とその遺伝的解析 (2015)
  • Author(s): 赤田辰治、國嶋俊輔、森野祥多、大宮泰徳、鳥丸猛
  • Organizer: 第126回森林学会
  • Place of Presentation: 北海道大学農学部
  • Year and Date: 2015-03-26 – 2015-03-29