Fig. 7
Phyla mainly responsible for xylan degradation in the anaerobic digesters: Phylogenetic distribution of phylum level of Homology to Peptide (HotPep)-predicted xylanolytic enzymes in the five phyla with highest number of HotPep-predicted xylanolytic enzymes. Enzyme Commission (EC) numbers are on the left and the phyla are on the right side. The outer ring designates the relative abundance of genes from a given phylum (left) and the relative abundance of a given xylanolytic enzyme (right); the inner ring designates the total number of genes encoding for a given xylanolytic enzyme (left) and the total number of xylanolytic enzyme associated with a given phylum. The width of the bars between a given phylum and a given xylanolytic enzyme indicates their relative abundance to the other phyla mentioned