Figure 2.
HOS15 is upstream of the photoperiodic flowering-related genes at low ambient temperature.
(A) Effect of low ambient temperature on flowering of double mutants of hos15-2 crossed with mutants of flowering-related genes. Plants were grown under LDs (16L/8D) at 23°C or 16°C. The photographs were taken when plants bolted. Scale bars correspond to 1 cm.
(B) The numbers of rosette and cauline leaves were counted at bolting to measure flowering time. Data are presented as means ± SD of three independent replicates, each including at least 15 plants. Different letters denote statistically significant differences (ANOVA, Bonferroni post-hoc test; P < 0.05).
