Figure 1From: Draft genome sequences of the type strains of Shigella flexneri held at Public Health England: comparison of classical phenotypic and novel molecular assays with whole genome sequenceMidpoint-rooted phylogenetic tree of S. flexneri type strains based on 10631 variant positions in the core genome, node labels are bootstrap values based on 500 bootstraps. S. flexneri serotype 6 is very distantly related to the S. flexneri strains described in this study (Table 1) and is therefore excluded from the tree.Back to article page