Neighbour-joining phylogenetic tree using the
gene for sequence homology studies. A phylogenetic relationship from the 38 isolates showing growth and cellulolytic activity on biomass from sugarcane and CMC. Sequences of reference strains obtained from DNA databases are indicated in bold and accession numbers are given in parenthesis. Bacterial isolates outlined in top, middle and bottom groups belong to the phylum Proteobacteria, Firmicutes and Actinobacteria respectively. The scale represents 0.01 substitutions per nucleotide position. Bootstrap values are based on 1,000 replicates.