Analysis of transcript abundance of flowering-time genes in transgenic (TG) and control Arabidopsis plants in long day conditions 28 h after DEX application. a) CO b) FT c) SOC1. Relative transcript accumulation is shown at ZT 11 just prior to DEX application and at ZT15 on Day 2, 28 h after DEX was applied to 15 day-old plants growing on agar plates in LD. Plants were treated with DEX (+DEX) or control solutions (-DEX). Transcript abundance was quantified using qRT-PCR and expression levels were normalised to ACTIN2. The data is presented as mean +/- SD of 2 qRT-PCR runs. The black bars on the harvest scheme indicate night, the open bars indicates day and the grey bar indicates the length of treatment with DEX or control solutions, ZT0 is lights on.