Figure 4.

co-2 partially rescued the earlier flowering phenotype of the dellap mutant. A, Plants of Ler, co-2, dellap, and dellap co-2 observed 25 d after germination under LDs. All plants are in Ler background. B, Flowering time of Ler, co-2, dellap, and dellap co-2 plants under LD conditions. Data are mean of at least 15 plants. Error bars indicate the sd of total leaf number. *Difference between dellap and dellap co-2 is highly significant (Student’s t test; P < 0.01). C, qRT-PCR analysis of FT expression in 10-d-old Ler and various mutant seedlings under LDs. The IPP2 gene was used as an internal control. Error bars indicate sd from three independent experiments. *Difference between dellap and dellap co-2 is highly significant (Student’s t test; P < 0.01).