Fig. 7

Heat maps comparing anthocyanin biosynthesis pathway gene expression between normal and mutant capitula as well as the anthocyanin biosynthesis pathway and identified regulatory genes. (A) Heat maps comparing anthocyanin biosynthesis pathway gene expression between normal and mutant capitula in chrysanthemum. Columns and rows in the heat maps represent samples and genes, respectively. Sample names are provided below the heat maps. The color scale indicates gene expression fold-changes. Red and blue respectively reflect high and low expression levels. (B) Anthocyanin biosynthesis pathway and the regulatory genes identified based on the chrysanthemum transcriptome. CHS: chalcone synthase, CHI: chalcone isomerase, F3H: flavanone 3-hydroxylase, F3′H: flavonoid 3′-hydroxylase, DFR: dihydroflavonol 4-reductase, ANS: anthocyanidin synthase, OT: 3-O-glucoside-6″-O-malonyltransferase, GT: glucosyltransferase, AT: acyltransferase. The genes in the anthocyanin biosynthesis pathway are listed in Additional file 14