Figure 2.

Heatmap illustrating the microbial phylogenetic core of the bovine rumen in feedlot cattle at the taxonomic rank of genus. To be considered core taxa, genera needed to comprise more than 0.1% of the overall microbial community and be present in at least 80% of all samples (n = 36). With the relative abundance values on the x-axis, the heatmap demonstrates the prevalence of the 32 genera considered core taxa at differing relative abundance levels (from the 0.1% minimum cutoff to the maximum observed value of 30.6%). This results in genera with high prevalence values at high relative abundances near the top of the heatmap, and those meeting the prevalence cutoff (80%) at lower relative abundances at the bottom. un, unclassified.