RAP2.6L-OX plants show amp1-related adult phenotypes. A, Quantification of flowering time of the indicated genotypes grown under long-day (left) and short-day conditions (right; wild type not shown since it did not flower in the analyzed period of time). Bars show means ± se; n ≥ 15. Different letters over the error bars indicate significant differences (P < 0.05) as calculated by Duncan’s multiple range test. B, Comparison of wild-type Col-0 (WT), amp1-1, and RAP2.6L-OX shoots grown under long-day (70 DAG) or short-day (86 DAG) conditions. C, Quantification of the rosette branch number and cauline branch number of 70-d-old wild-type Col-0 (WT), amp1-1, and RAP2.6L-OX plants grown under long-day conditions (bars represent means ± se; n ≥ 4). Different letters over the error bars indicate significant differences (P < 0.05) as calculated by Duncan’s multiple range test.