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Divergences in protein-coding genes within and between taxa. (a, b) Histograms of divergence in protein coding genes (percent of genes for each level of divergence) between the two Phoebis taxa and the two Pterourus taxa, respectively. (c) Percent of protein-coding genes (vertical axis) that can separate the two taxa in phylogenetic analysis with bootstrap support higher than a certain cutoff (horizontal axis).
