Fig. 5. Transition between vegetative and reproductive phases in the wild type and in the phyA, phyB, cry1 and cry2 single, double, triple and quadruple mutant combinations. (A) The total number of leaves (rosette plus stem) indicates the point of transition in a developmental scale. (B) The time to first visible flower bud provides an indication of the transition in a chronological scale. (C) The phyA mutation accelerates flowering in the cry2 background. Data are means and s.e.m. of 10-17 plants.