Functional analysis of TCP family transcription factors TCP8 and TCP14 that interact with rice florigen Hd3a.

• Project/Area Number: 21780004
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Breeding science
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: TSUJI Hiroyuki Nara Institute of Science and Technology, バイオサイエンス研究科, 助教 (40437512)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 植物分子育種 / フロリゲン / 花芽形成 / TCP型転写因子 / イネ

Research Abstract

Florigen was proposed about 70 years ago that produced in the leaves and moves up to shoot apex to induce flowering. In 2007 the molecular nature of florigen was revealed to be a family of FT/Hd3a protein. Hd3a protein itself does not possess any biochemically defined functional motifs thus Hd3a should interact with functional effectors to exert its function. Here, we found TCP transcription factors interact with Hd3a, and functional analysis of these proteins revealed their contribution to flowering.

Research Products

• [Journal Article] Regulation of flowering in rice : two florigen genes, a complex gene network, and natural variation. (2011)
  • Author(s): Tsuji, H.,Taoka, K.-I., Shimamoto, K.
  • Journal Title: Curr.Opin.Plant Biol. 51 Pages: 58-67
  • Peer Reviewed
• [Journal Article] Regulation of flowering in rice : two florigen genes, a complex gene network, and natural variation. (2011)
  • Author(s): Tsuji, H., Taoka, K.-I., Shimamoto, K.
  • Journal Title: Curr.Opin.Plant Biol. Volume: 51 Pages: 58-67
  • Peer Reviewed
• [Presentation] イネのフロリゲンHd3aタンパク質と相互作用する転写因子OsFDの機能解析 (2011)
  • Author(s): 辻寛之、玉置祥二郎、田岡健一郎、島本功
  • Organizer: 第52回日本植物生理学会年会(地震の影響で中止となり講演要旨集発行をもって成立)
  • Place of Presentation: 仙台市
  • Year and Date: 2011-03-12
• [Presentation] イネフロリゲンHd3aタンパク質複合体の機能解析 (2011)
  • Author(s): 田岡健一郎、島田千尋、柳瀬朋子、大木出、辻寛之、児嶋長次郎、島本功
  • Organizer: 第52回日本植物生理学会年会(地震の影響で中止となり講演要旨集発行をもって成立)
  • Place of Presentation: 仙台市
  • Year and Date: 2011-03-12
• [Presentation] イネのフロリゲンHd3aタンパク質と相互作用する転写因子OsKANADI1の機能解析 (2010)
  • Author(s): 内村昇平、辻寛之、Yekti Asih Purwestri、柳瀬朋子、田岡健一郎、島本功
  • Organizer: 第33回日本分子生物学会
  • Place of Presentation: 神戸市
  • Year and Date: 2010-12-08
• [Presentation] イネフロリゲンHd3aによる遺伝子発現制御機構の解析 (2010)
  • Author(s): 島田千尋、田岡健一郎、辻寛之、島本功
  • Organizer: 第33回日本分子生物学会
  • Place of Presentation: 神戸市
  • Year and Date: 2010-12-08
• [Presentation] フロリゲンはどのようにして花を咲かせるのだろうか?ーバイオイメージングからそのメカニズムに迫るー (2010)
  • Author(s): 辻寛之
  • Organizer: 視る生物学5
  • Place of Presentation: 生駒市
  • Year and Date: 2010-11-26
• [Presentation] Functional analysis of rice homolog of FD, a bZip transcription factor interacting with florigen Hd3a. (2010)
  • Author(s): Hiroyuki Tsuji, Ken-ichiro Taoka, Izuru Ohki, Midori Yamaguchi, Chika Nakashima, Yuka Ogaki, Chojiro Kojima, Ko Shimamoto
  • Organizer: China-Japan Joint Workshop on Rice Morphogenesys
  • Place of Presentation: Beijing
  • Year and Date: 2010-10-08
• [Presentation] イネフロリゲンHd3aタンパク質と相互作用する転写因子OsFD1の機能解析 (2010)
  • Author(s): 辻寛之、田岡健一郎、大木出、山口緑、大垣友香、児嶋長次郎、島本功
  • Organizer: 日本育種学会第118回講演会
  • Place of Presentation: 秋田市
  • Year and Date: 2010-09-25
• [Presentation] イネフロリゲンHd3aタンパク質と相互作用する転写因子OsFD1の機能解析 (2010)
  • Author(s): 辻寛之
  • Organizer: 第51回日本植物生理学会
  • Place of Presentation: 熊本大学(熊本市)
  • Year and Date: 2010-03-21
• [Presentation] Hd3a protein, a major component of florigen, is a mobile branching signal in rice. (2009)
  • Author(s): Hiroyuki Tsuji
  • Organizer: The 6th International Rice Genetics Symposium
  • Place of Presentation: フィリピン・マニラホテル(マニラ)