FIGURE 7.

Methylation modification and the heat maps of DEGs encoding key enzymes in the pathway of floral scent biosynthesis in P. mume. The key floral scent biosynthetic pathway in P. mume is shown. The biological compounds on an orange background are the starting substrates of the phenylpropane pathway, synthesized by the upstream pathway. The red rectangles indicate the metabolites that were detected in the headspace. Red asterisks indicate that genes encoding enzymes have undergone differential methylation during the process. The dashed boxes indicate that the processes involved share the same enzyme. In the heat maps, pink and light-green represent high and low transcript expression, respectively. The methylation statement were also marked in the heat maps with “Mp” and “Mb” to indicate the differential methylation occurred in promoter and genebody region, respectively; Text color with red, blue and purple represent ML up (hypermethylated), down (hypomethylated) and both happened respectively; Different fonts refer to different CX context, as shown in the figure.