Fig. 5.

Chilling effects on the promotion of germination by light of DOG1 and DOG2. Seeds were stored at 25 °C for 120 d and then incubated at 7 °C for 0, 3 or 10 d, followed by a pulse of R or FR, or kept in darkness (D). Seeds were harvested simultaneously from plants grown in identical environmental conditions, and therefore the NILs are directly comparable with the Ler control. Values are means of 6–9 replicates ± s.e. Only significant differences between means are shown: ***, P < 0·01; **, P < 0·05; *, P < 0·10 (Student's t-test).