Fig. 3.

Graphical representation of the microbiome composition along the length of the intestine. Pie graphs depict the relative abundance of the major phyla (Firmicutes (pink), Bacteroidetes (yellow), Actinobacteria (blue), Verrucomicrobia (green), Fusobacteria (fusia), Proteobacteria (orange) and other (grey)). Composition is noted for both the luminal population as well as the mucosa-associated microbiome for human and mouse. Composition is approximated from published literature. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)