Figure 2From: Phylogenomic analysis of natural selection pressure in Streptococcus genomesA Venn diagram showing the distribution of 26 proteins known to have body-site specific patterns of gene expression during invasive disease in Streptococcus pyogenes and to have evolved under positive Darwinian selection. Expression data are from Orihuela et al. [6] for infected blood (IB), cerebrospinal fluid (CSF) and epithelial cell contact (ECC).Back to article page