Figure 2

Comparative diagram of the Geobacillus hemicellulose loci. The aligned echD-npd islands of the twenty-four sequenced HUS⁺ and HUS^-Geobacillus strains and that of G. stearothermophilus T-6 are shown. The flanking echD and npd genes are colored in yellow, genes coding for transposons in black, and genes in which the reading frames are transposon-disrupted are in red. Those genes conserved among >70% of the HUS⁺ strains are colored in green, those conserved among >50% and <70% in light green, while those conserved among <50% of the HUS⁺ strains are colored in white.