Fig. 5

Changes in the number and size of petals in R. chinensis ‘CH’ under high temperature treatment. a Flower morphology at different stages under high temperature (downer) and normal temperature (upper) treatment. b Statistics of the number and size of floral organs under different temperature treatments. Stars (***) mean significant differences (P < 0.001) analyzed by two–way ANOVA. c The cell density middle of petals under high temperature (right) and normal temperature (left) treatment. d-e The expression of RcANT1, RcDA1, RcAG1, RcAG2 and RcSVP1. Stars mean significant differences (*** represents P < 0.001, ** represents P < 0.01, * represents P < 0.05) analyzed by T-test. f. The coverage of RcAP2L^wt exon 10th with miR172 binding site under high temperature treatment. Stars mean significant differences (* represents P < 0.05) analyzed by T-test. g. The dual‐LUC assays. Red represents higher signal intensity and blue represents lower signal intensity. The bars indicate the SD. Stars (***) mean significant differences (P < 0.001) analyzed by one–way ANOVA