Codon frequencies based heatmap. The codon frequencies based heatmap is made from all the trinucleotide (codon) frequencies found in all predicted genes from the genomes of all species in the genera: Brucella, Agrobacterium and Ochrobactrum. It can be seen that there are small differences among the species in genus Brucella and only slightly more variance between the species found in the other genera.
Bohlin et al. BMC Evolutionary Biology 2010 10:249 doi:10.1186/1471-2148-10-249