Resolution:
## Figure 2.
Analyses of substitution saturation at each codon position. Maximum likelihood saturation plots [34] were compared (a) between the complete amino-acid and nucleotide datasets, and (b) between the codon positions of the complete nucleotide dataset. The observed pairwise
distances between the 16 taxa were directly computed from sequence alignments, and
the corresponding inferred pairwise tree distances calculated from branch lengths
of the ML topology. The Y = × line marks the theoretical limit where the number of
observed substitutions equals the number of inferred substitutions. The slope of the
linear regression indicates the amount of substitution saturation; the smaller the
slope, the greater the number of inferred multiple substitutions.
Chiari |