Fig. 3: Distribution of maximum d_N/d_S values from the adaptive branch-site random effects likelihood (aBSREL) models.

The maximum d_N/d_S ratios resulting from the aBSREL models for n = 38 (39) genes across 13 vertebrate species and ten nodes. Each dot represents one gene, the dots highlighted in magenta are the genes that were under positive selection in specific branches or nodes as identified in the branch-site tests. Branches and nodes are displayed on the y axis and the maximum log-transformed d_N/d_S values on the x axis. log-d_N/d_S ratio < 0.693147181 signifies negative selection, log-d_N/d_S ratio = 0.693147181 signifies neutral selection, log-d_N/d_S ratio > 0.693147181 signifies positive selection. The vertical dotted gray line marks neutral selection. The center line in each box plot indicates the median, box limits are the upper and lower quartiles, whiskers reach up to the minimum and maximum value, respectively. The raw data underlying this plot is presented in Supplementary Data 5.