Fig. 5: LsAP2 affects the expression of auxin- and polarity-related genes.

a Heat map showing the expression levels of auxin-related genes between WT and LsAP2-OE plants. Red and blue indicate up- and downregulation, respectively. b Indole-3-acetic acid (IAA) level in the leaves of WT and LsAP2-OE plants. The values are means ± SDs (n = 3). c Heat map showing the expression levels of adaxial–abaxial identity-related genes between WT and LsAP2-OE plants. d qRT-PCR analysis showing the expression levels of abaxial identity-related genes between WT and LsAP2-OE plants. The values are means ± SDs (n = 3). The data were normalized to a value of 1 for the WT. In (b) and (d), significant differences were determined by Student’s t test (**P < 0.01)