Fig. 4: Genes inhibited at phloem stop belong to different regulatory networks.

Genes and transcription factors were clustered according to the Z-score of the motifs present within 1500 bp before the TSS. Red and blue colours indicate proximity and distance of the promoter sequence to the TSS. White colour denotes the absence of a specific TF in the promoter of a gene. Horizontal and vertical colour bars grouped promoter and genes in promoter families and gene functions as indicated in the legend. The two examples discussed in the text regarding SWEETs and HT6 with reference to NAC, MYB and AP2/EREB are marked by black squares