2016 Fiscal Year Final Research Report
Screening of novel repressors of photoperiodic flowering
| Project/Area Number |
26440154
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Gakushuin University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 光周性 / 花芽形成 / シロイヌナズナ / 環境応答 |
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| Outline of Final Research Achievements |
Two ef1 mutants, ef1-1 and ef1-2, that flowered earlier than the fkf1 mutant under long-day conditions were isolated by fkf1 suppressor screening. ef1 fkf1 double mutants showed accelerated flowering time compared to the control under both long-day and short-day conditions, indicating that the repression of flowering time by EF1 was independent of the photoperiodic pathway. FT expression of ef1-1 and ef1-2 was higher than that of wild-type throughout the day, and ef1 ft double mutants showed delayed flowering time compared to wild type, These results suggested that down-regulation of FT expression is important for repression of flowering time by EF1. ef1 mutation was not affect the period length of circadian rhythm, although circadian clock affects FT expression.
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| Free Research Field |
植物生理学
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