Fig. 8.

Heat map of the fifty-seven potential glucosyltransferase genes (in red and black) obtained from the weighted correlation network analysis and the genes (in green) known to be involved in steviol glycoside biosynthesis. Genes were clustered by expression patterns. Among the fifty-five glucosyltransferase genes, forty-four SrUGTs (in red) are co-expressed with at least one upstream gene, including SrDXS, SrDXR, SrCMS, SrCMK, SrMCS, SrHDS, SrHDR, SrGGPS, SrCPPS, SrKS, SrKO and SrKAH. Of these genes, those having the P letter at the end were found to contain a single nucleotide substitution, insertion, or deletion, thereby causing interruption of ORFs