Fig. 9

Putative upstream regulatory transcription factors of DEGs involved in PME and DPME biosynthetic pathways depicted using iRegNet analysis (Shim et al. 2021). a High-confidence upstream transcription factors of regulating Arabidopsis homologs of five DEGs in the stilbenoid, diarylheptanoid, and gingerol biosynthetic pathways. b High-confidence upstream transcription factors of regulating Arabidopsis homologs of five DEGs coding PAL, 4CL, STS, and PMT. Orange and Blue circles indicate DEGs and upstream TFs, respectively. c Molecular connections between MYB4, PAL, and 4CL. Molecular links of MYB4 were retrieved from STRING database