Figure 3

Functional composition of the transcriptomes. The proportions and absolute amounts of reads for CDS after COG class assignment are shown for strains STM 2683 (A and B) and STM 4661 (C and D). Chart pies (A and C) show the relative quantities of transcripts belonging to defined COG functional classes (B-W; see Table 3 for description) in the Mesorhizobium transcriptomes. Histograms representing the quantitative composition of the transcriptomes (B and D) organized by the biological Process and Class ID (bottom of histograms) show the total amounts of reads (indicative of transcript abundance) in each class and for each treatment (Zinc, Control or Cadmium). The median read numbers per class and per treatment are indicated as the last bars on the histograms which were used to draw the dotted line above which the defined classes are the most represented for both organisms and for all treatments (these class IDs and their proportions are indicated in white on the pie charts).