Figure 16From: XRate: a fast prototyping, training and annotation tool for phylo-grammarsComparison of substitution rates of nucleotides in unpaired alignment columns. Rates and equilibrium frequencies from the Pfold phylo-SCFG (left panel) are compared with those estimated by the phylo-EM algorithm from Rfam (right panel). Transitions are green, transversions are black.Back to article page