Fig. 4

Metabolic profiling of the bacterial community based on KEGG module completeness. a heatmap showing clustering of genomes (rows) by their KEGG module completeness (columns). Completeness ranges from 1 (green) to zero (white). The heatmap is based on a Euclidean distance matrix and clustering with the ward.D method. Genome clustering resulted in 5 clusters (Groups α–ε). Rectangles on the heatmap mark module blocks that differentiate the genome groups. Black rectangles on heatmap show module blocks that have increased completeness in a group of bacteria (compared to the others), and red rectangles show decreased completeness. Marks to the left of the heatmap show the division of AA and SA bacteria. A black star to the right of the heatmap marks Brocadia. b Relative abundance by phyla of members in each metabolic cluster.