Figure 1: Maximium-likelihood tree showing the position of strain IMMIB D-1873/99 within the radiation of species of the genus Nocardia. The tree was based on a comparison of sequences that were at least 90% complete (with regard to E. coli sequence). The numbers at the nodes indicate the level of bootstrap support (%) based on neighbour-joining analyses of 1,000 resampled datasets. The scale bar indicates 10.0% sequence divergence.