Figure 5. Host genotype and bacterial source affect abundances of specific bacterial groups within the intestinal microbiota.

Quantification of specific bacterial groups from (A) ileal tissue samples, and (B) cecal contents using quantitative PCR of the 16 S rRNA gene is shown (n = 3–4 mice/group). Copy number is normalized to total 16 S, and fold change is relative to the B6 donor→B6 recipient group (black bars). Values are expressed as mean ± SEM (*P≤.05).