Fig. 3

Population “snapshot” of Helicobacter pylori STs found in the paediatric strains and clonal complexes ST313 and ST2894. Clusters of related isolates and individual unlinked STs found in the MLST database for H. pylori are presented as a single eBURST tree [http://www.phyloviz.net/goeburst/] defining category zero and comprising seven shared alleles. Unions link isolates that correspond to clonal complexes. Primary founders (blue) are located in the centre of the group, and the founders of the subgroups are shown for ST2888, ST2889, ST2895, ST2896 and ST2899 (red circles); the labels for the other STs [http://pubmlst.org//helicobacter/] have been removed for clarity. The predicted primary founders are ST313 and ST2894 (bootstrap value: 1000). The primary founders (blue) are located in the centre of the group, and the founders of the subgroups are shown in yellow