Figure 1.

Functional relationships between sequenced ruminococci. A) OrthoMCL was used to identify unique and shared proteins among three cellulolytic ruminococci: R. albus 7, R. albus 8, and R. flavefaciens FD-1. Total number of shared orthologous clusters within each group are indicated and the number of orthologous clusters annotated as carbohydrate-active enzymes are shown in parentheses. B) Comparison of the three cellulolytic ruminococci (light gray) with non-fibrolytic ruminococci (dark gray), and amylolytic Ruminococcus bromii L2-63 (unshaded) emphasized the number of carbohydrate-active enzymes that were specific to these physiologically distinct groups.