The isolation of photoperiodically regulated genes and the relationship between the photoperiod and useful traits in Larix kaempferi

• Project/Area Number: 22780151
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: FUKATSU Eitaro 独立行政法人森林総合研究所, 林木育種センター九州育種場, 主任研究員 (10370826)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 森林生産 / 育種 / カラマツ / 材密度 / 光周性 / 光周性関連遺伝子 / 材形成フェノロジー

Research Abstract

The resources for photoperiodically regulated genes for woody plants in Japan is not prepared yet. Wood density is a particularly important trait because it affects other traits such as the mechanical properties of wood and carbon-sequestration performance in woods. The wood density would be affected by photoperiod, whereas the relationship between wood density and the difference of photoperiod is not well understood. We used Larix kaempferi for the research material. The homologs of Constans and Flowerling locus T were isolated and the pattern of circadian rhythms were analyzed. The phenology of cambium activity were observed and the timing of the transition from earlywood to latewood were not affected by the difference of photoperiod.

Research Products

• [Presentation] カラマツにおける光周性関連遺伝子の単離と発現解析 (2011)
  • Author(s): 武津英太郎・渡辺敦史・栗田学・織部雄一朗・渡邊智美・梶田真也
  • Organizer: 第122回日本森林学会大会
  • Place of Presentation: 静岡大学(発表は東北地方太平洋沖地震により中止となったが、学術講演集の発行と公表をもって学会発表とする旨が学会事務局より発表された)
  • Year and Date: 2011-03-26
• [Presentation] カラマツの材形成フェノロジーへの環境と遺伝の影響 (2011)
  • Author(s): 武津英太郎、織部雄一朗、田村明、織田春紀、古本良、渡辺敦史、中田了五
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都大学(京都府京都市)
  • Year and Date: 2011-03-18
• [Presentation] カラマツにおける光周性関連遺伝子の単離と発現解析 (2011)
  • Author(s): 武津英太郎、渡辺敦史、栗田学、織部雄一朗、渡邊智美、梶田真也
  • Organizer: 第122回日本森林学会大会(学会中止、日本森林学会大会発表データベースに要旨が掲載)
• [Presentation] Genetic variation on the phenology of cambial activities in Larix kaempferi (2010)
  • Author(s): Eitaro Fukatsu, Ryo Furumoto, Ryogo Nakada
  • Organizer: LARIX 2010:International Symposium of the IUFRO Working Group S2.02.07.
  • Place of Presentation: Institute of Biology of Komi Scientific Centre(ロシア、コミ共和国スィクティフィカル)
  • Year and Date: 2010-09-10
• [Presentation] Genetic variation on the phenology of cambial activities in Larix kaempferi. (2010)
  • Author(s): Eitaro Fukatsu, Ryo Furumoto, Ryogo Nakada
  • Organizer: LARIX 2010 : International Symposium of the IUFRO Working Group S2.02.07
  • Place of Presentation: Institute of Biology of Komi Scientific Centre(ロシア)
  • Year and Date: 2010-09-07
• [Presentation] Clonal variation on the phenology of cambial activities in two Japanese conifers, Cryptomeria japonica and Larix kaempferi (2010)
  • Author(s): Eitaro FUKATSU, Ryogo NAKADA
  • Organizer: Joint Japanese-Finnish Forest Research Seminar: Forestry in changing environment
  • Place of Presentation: 森林総合研究所(茨城県つくば市)
  • Year and Date: 2010-08-30