Figure 3

COG analysis of genes whose expression levels responded to a short-term perturbation with sodium chloride or PEG8000. The proportion of genes in select cluster of orthologous group (COG) categories were calculated for those whose expression levels were differentially expressed after short-term (30 min) perturbation with sodium chloride (panel A) or PEG8000 (panel B). Proportions were calculated for genes that had increased expression (black bars) or reduced expression (white bars) and were compared to the proportions for all genes within the complete genome (grey bars).