Table 4.

Identification of species-specific positively selected sites (PSS) by maximum likelihood (ML) analysis

Sample size (n) considered for each analysis is shown. Sites identified as positively selected by at least two ML analyses are underlined. Codons are given with a posterior probability ≥ 90 % in the Bayes Empirical Bayes (BEB) analysis for PAML M8; p-values < 0.1 for SLAC, FEL, IFEL and MEME; Bayes Factor > 50 for REL. † indicates PSS found only in a specific region for each species. Validated PSS also found with human antigen-binding sites (ABS) are shadowed