Identification of H. parasuis genes differentially expressed. MA plots generated by EdgeR showing transcript expression profiles in the three comparisons performed: biofilm vs planktonic (A), biofilm vs stationary phase (B) and planktonic vs stationary phase (C). For each gene, log2(fold change) between the two conditions is plotted (M, y axis) against the gene’s log2(average expression) in the two samples (A, x axis). The blue lines indicate 2-fold changes. Red dots highlight the genes at 5% P-value.