Additional file 6.
Phylogenetic trees of candidate genes. Phylogenetic trees for the five genes that were putative targets for positive selection (at FDR < 0.20) according to likelihood ratio tests based on the site and branch-site codon substitution models implemented in PAML.
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Ometto et al. BMC Evolutionary Biology 2012 12:7 doi:10.1186/1471-2148-12-7