Fig. 2

CPL1 expression is regulated by the vernalization pathway. a CPL1 expression in photoperiod-pathway mutants at 9 DAG. b FT and CO expression in WT and cpl1-3 mutant seedlings. c CPL1 expression after a gibberellin treatment. The WT seedlings were grown under short-day conditions for 2 weeks and then treated with 100 µM gibberellic acid or 0.1 % ethanol weekly. After 3 weeks (W3) and 5 weeks (W5), samples were collected for further analyses. d CPL1 expression in autonomous-pathway mutants at 9 DAG. e FPA, FCA, FLD and FVE expression in WT and cpl1-3 mutant seedlings. f CPL1 expression after the vernalization treatment. The seeds were vernalized at 4 °C for 8 weeks, and 9-day-old seedlings were collected for further analyses. Asterisks indicate significant differences (Student’s t test, *P < 0.05, **P < 0.01, “ns” indicates statistically not siginificant)