FIG. 3.

Neighbor-joining tree showing the position of strain IMMIB HP-28/8^T within the radiation of species of the genus Helicobacter. The numbers at the nodes indicate the level of bootstrap support (%) based on neighbor-joining analyses of 1,000 resampled data sets; solid circles indicate that the corresponding nodes (groupings) were also recovered in maximum-likelihood and maximum-parsimony trees. The scale bar indicates 5.0% sequence divergence.