FIGURE 6.

Activation of phenylpropanoid-biosynthesis pathway in response to cold storage. (A) Major connections of phenylalanine biosynthesis to phenylpropanoid-, flavonoid-, and lignin-biosynthesis pathways based on the KEGG pathway mapper. Genes circled in red are significantly upregulated during cold storage at 5°C. (B) Expression heat map of genes related to phenylpropanoid-biosynthesis pathway at two different storage temperatures (5 and 12°C) at different sampling times (2, 7, and 14 days). Z-scores represent rescaled log fold change values. Abbreviations, transcript identification and expression profile are described in Supplementary Table S2.