Figure 8From: Evidence of host-virus co-evolution in tetranucleotide usage patterns of bacteriophages and eukaryotic virusesPhylograms of 90 selected viruses for which genomic sequences are available. The organisms were grouped according to distance matrices based on the number of shared orthologues between each genome, as described in Materials and Methods. Phylogenies were created by neighbor-joining analysis. Color code as is for Figure 7. The branch length index is indicated below the phylogeny.Back to article page