Additional file 4.
Number of genes identified by likelihood ratio tests that compared branch, site and branch-site codon substitution models. Number of genes identified (at decreasing probabilities thresholds) as putative targets of positive selection by likelihood ratio tests based on branch models (B tests, Table S4.1), site models (S tests, Table S4.2), and branch-site models (BS tests, Table S4.3).
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Ometto et al. BMC Evolutionary Biology 2012 12:7 doi:10.1186/1471-2148-12-7