Fig. 1From: Positive selection-driven fixation of a hominin-specific amino acid mutation related to dephosphorylation in IRF9The FEL method identified positive selection on Val129 (shown with black arrow). The red bars indicate positively selected sites. Maximum likelihood estimates of synonymous (α) and non-synonymous rates (β) at each site are shown as bars. The base line shows the estimates under the null model (α = β)Back to article page