Fig. 7
Metabolome analysis of Tamarix hispida. a Principal component analysis (PCA) of metabolome data in stages 3, 4 and 5. b Statistics of different metabolites in stage 3 vs. stage 4 and stage 4 vs. stage 5 (VIP > 1, |log2(FC)| > 1). c Venn diagram of flavonoids in differential metabolites. d Schematic of a portion of flavonoid biosynthesis pathway in Tamarix hispida. Metabolic intermediates are marked in blue, and end products are marked in red. Heat maps show the transcriptional level of enzymes in the six stages and metabolite level in the three stages (3, 4 and 5). Gene sale bar corresponds to the range of relative transcriptional level of enzymes, and metabolite sale bar corresponds to the range of relative metabolite level