Figure 3
Phylogeny of the sequenced Geobacillus strains showing the distribution of hemicellulose loci. A neighbour-joining phylogeny was constructed on the basis of the recN gene for the twenty-four sequenced Geobacillus strains as well as twelve Geobacillus spp. type strains. The presence or absence of HUS loci in the sequenced strains is indicated by green and red dots, respectively. The blue star next to G. stearothermophilus ATCC 12980T indicates the predicted phylogenetic position of G. stearothermophilus T-6 for which a recN sequence is not available. The recN gene sequence of Bacillus subtilis 168 was used as outgroup. Bootstrap values (n = 1,000) are shown.