FIG. 4.

(A) Hierarchical cluster analysis based on all probe intensities for the three replicate experiments for each of the four experimental E. coli strains. (B) Cluster analysis based on continuous P values between 0 and 1 (t test) for the four experimental E. coli strains (indicated in bold and with the postfix “exp”) and binary values of either 0 or 1 based on theoretical probe absence or presence for all seven sequenced E. coli strains considered in this study. Both cluster analyses are based on Pearson correlation distances and complete linkage.