Additional file 4 of Lettuce immune responses and apoplastic metabolite profile contribute to reduced internal leaf colonization by human bacterial pathogens

Supplementary Material 4: Fig. S2. Hierarchical clustering analysis of all detected transcripts based on Log2 fold change (FC) gene expression (bacterium vs. mock) for each lettuce cultivar and time point. Relative gene expression in Green Towers (GT), Lollo Rossa (LR), and Red Tide (RT) at 1- and 7-days post inoculation with Escherichia coli O157:H7 (Ec) or Salmonella enterica ser. Typhimurium 14028s (Se) is listed in Dataset S2. Heatmap and clustering were conducted using the pheatmap R package with default analysis settings.