Figure 8.

Gene size and transcription directional change parameters for 41 bacterial genera and their phages. Gene size and tdc distributions were examined for the complete phage and bacterial genomes available in RefSeq (see Materials and Methods). The intra-genus ratio of the average bacterial genome 5th percentile to the average phage genome 95th percentile for both gene size and tdc, was calculated and plotted. Each point on the plot indicates the calculated gene size and tdc ratios for a single genus. Genera are colored according to the phylum (or family for the Proteobacteria) that the genus belongs to. A value of one or greater reflects minimal overlap of the phage and bacterial distributions.