Figure 1.

Distance-matrix neighbor-joining tree, showing the phylogenetic relationships of Halococcus type strains. The tree is based on an alignment of 16S rRNA gene sequences. Bootstrap values higher than 70 out of 1000 subreplicates are indicated at the respective bifurcations. The tree was constructed using the neighbour-joining method of Saitou and Nei [13]. The bar represents the scale of estimated evolutionary distance (1 % substitutions at any nucleotide) from the point of divergence. Halobacterium noricense was used as an outgroup.