Fig. 5. Combining the BR-deficient mutant cpd with ld delays flowering and enhances FLC expression. (A,B) Flowering time, under long days, of cpd-3939 ld-3 compared to bri1-201 ld-3 mutants and to the respective single mutants, measured as either days to bolt (A) or rosette leaf number at bolting (B). A representative result is shown. (C,D) FLC expression (C) and the abundance of the floral pathway integrators FT and SOC1 (D) in the 30-day-old plants described in A. FLC mRNA abundance was monitored as in Fig. 1. FT and SOC1 mRNA levels were measured by reverse transcriptase (RT)-PCR and UBQ10 was used as a control.