General comparison of the enrichment profiles of the strain categories. Each column is created from the gene enrichment list for each grouping (Additional file 16, Additional file 17, Additional file 18, Additional file 19, Additional file 20, Additional file 21, Additional file 22, Additional file 23 and Additional file 24). Each list of gene sequences was evaluated for ontology level 3 biological process categorization using Blast2GO for SEED assignments. The coloring scheme corresponds to enrichment scores assigned by Blast2GO. Grouping categories are shown on the x-axis, and the different comparisons are separated by white lines. Enrichment comparisons were performed between clade1 and clade2; pathogen and commensal; slow, medium and fast growth rates; early and late colonization. The color key indicates the enrichments scores for the biological processes.