Gut Microbial Gene Expression in Mother-Fed and Formula-Fed Piglets
(A) Mean relative abundances of bacterial taxa within cecal microbiota from 4 MF animals (black bars) and 4 FF animals (white bars) identified by analysis of 16S rDNA amplicon sequences. Sequences were classified to the highest taxonomic level to which they could be confidently assigned using the RDP classification algorithm and taxonomic hierarchy. (B) Relative mean abundances of bacterial taxa within cecal microbiota identified by RDP analysis of unamplified 16S sequences within cDNA libraries. The results demonstrate that all communities are dominated by the phyla Bacteroidetes and Firmicutes; MF data sets are enriched with Prevotella sequences and FF data sets are enriched with Bacteroides sequences. In both panels, differentially abundant phyla (p value<0.05) and genera (p value<0.01) are marked with a * if they were enriched within the MF samples and with a ** if they were enriched within FF samples. Taxa with a mean relative abundance <0.01 in both MF and FF groups are not shown.