Fig. 3.

The juvenile vegetative phase of CmNF-YB8-RNAi chrysanthemum plants. a Transcript abundance of CmNF-YB8 in wild type (WT) and CmNF-YB8-RNAi plants determined by qRT-PCR. RNAi-4, -13, and -22 correspond to three independent CmNF-YB8-RNAi lines. b Morphology of leaves of seven-leaf-old WT and CmNF-YB8-RNAi chrysanthemum plants. Juvenile leaves were defined as small, with no, or minimal, marginal serration. c Percentage of juvenile leaves among the first five leaves in WT and CmNF-YB8-RNAi chrysanthemum plants. Three independent experiments were performed and error bars indicate standard deviation. Asterisks indicate significant differences according to a Student’s t test (**P < 0.01)