Figure 3. Host switches associated with the highest number of differentially expressed genes varied between 2 and 17 hours. The number of significantly differentially expressed genes (FDR < 0.05) after a host switch was compared to the corresponding control line (e.g. UdUd - UdSc). Here the comparisons with the highest numbers showed strong differences between the sampling times. Vertical barplots show the total number of significantly differentially expressed genes in each pairwise comparison, horizontal barplots (set size) represent the proportion of unique and shared genes. Overlaps in the differential gene expression are shown by the dot-plots. Differences in Switch A are shown on the left side (a -c ), Switch B is presented on the right side (d -f ). Ud= Urtica dioica , Sc=Salix caprea , Ug= Ulmus glabra , Ru=Ribes uva-crispa.