Fig. 6

Anthocyanin content and expression patterns of CmNAC25, CmMYB6, and CmDFR in petals of different cultivars at the post-flowering stage. A The phenotype of ‘Nannong Lvdong’ and ‘Ibis Sunny’ petals at post-flowering stages. Bars = 1 cm. B The total anthocyanin content (TA) in petals of ‘Nannong Lvdong’ and ‘Ibis Sunny’ at three flowering stages. C–E Expression levels of CmNAC25, CmMYB6, and CmDFR in petals of ‘Nannong Lvdong’, ‘Ibis Sunny’, and ‘Arctic Queen’. Error bars indicate the SD of three biological replicates. Lowercase letters indicate significant differences (p < 0.05, ANOVA, Tukey’s correction)