The molecular basis of flowering and dormancy governed by circadian clock in chrysanthemum
Project/Area Number |
24780031
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Horticulture/Landscape architecture
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Research Institution | National Agriculture and Food Research Organization |
Principal Investigator |
ATSUSHI Oda 独立行政法人農業・食品産業技術総合研究機構, 花き研究所花き研究領域, 主任研究員 (00375437)
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | キク / 短日植物 / 概日リズム / 花成 / 限界日長 / アンチフロリゲン / 慨日リズム / 休眠 |
Outline of Final Research Achievements |
CsLHY and CsGI genes were isolated and analyzed in chrysanthemum, a short-day plant. CsLHY was fused to a gene encoding short transcriptional repressor domain (SRDX) and overexpressed in chrysanthemum. CsLHY-SRDX-ox flowered under long day condition. The critical day length was shortened in CsGI-ox. The changes of circadian clock genes expression were not observed in CsLHY-SRDX-ox and CsGI-ox. CsFTL3 and CsAFT encode florigen and antiflorigen, respectively. The expression level of CsFTL3 and CsAFT were affected in CsLHY-SRDX-ox and CsGI-ox. Here I revealed the possible involvement of CsLHY and CsGI in the photoperiodic flowering though the regulation of CsFTL3 and CsAFT in chrysanthemum.
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Report
(4 results)
Research Products
(10 results)
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[Journal Article] The gated induction system of a systemic floral inhibitor, antiflorigen, determines obligate short-day flowering in chrysanthemums2013
Author(s)
Higuchi, Y, Narumi, T, Oda, A, Nakano, Y, Sumitomo, K, Fukai, S and Hisamatsu, T
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Journal Title
PNAS
Volume: 110
Pages: 17137-17142
Related Report
Peer Reviewed
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