Figure 3

Neighbor-joining tree based on the comparison of ureAB gene sequences. This phylogenetic tree comprises the ureAB amplicons obtained in the Helicobacter pylori-specific ureAB PCR and relevant GenBank reference sequences. One amplicon sequence was left out of this analysis because sequencing yielded an amplicon that was too short for multiple sequence alignment. Sample names include the number assigned to the animal, followed by C or D (= cat or dog) and A or C (= antrum or corpus). Reference sequence names include the Helicobacter species, strain, accession number between brackets and host where possible.