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2016 Fiscal Year Final Research Report

Screening of novel repressors of photoperiodic flowering

Research Project

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Project/Area Number 26440154
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant molecular biology/Plant physiology
Research InstitutionGakushuin University

Principal Investigator

TAKASE Tomoyuki  学習院大学, 理学部, 助教 (30392012)

Project Period (FY) 2014-04-01 – 2017-03-31
Keywords光周性 / 花芽形成 / シロイヌナズナ / 環境応答
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.

Free Research Field

植物生理学

URL: 

Published: 2018-03-22  

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