Fig. 3.

Estimate of dN, dS, and $\frac{\mathrm{d}N}{\mathrm{d}S}$ on primate branches with a stationary model (left), and a nonstationary nonhomogeneous model (right), on simulated data with changing G + C content on dog and rodent branches, and $\omega =0.1$. θ_root: G + C frequency in the root and primates sequences. θ_eq: G + C equilibrium frequency of the simulation model on dog and rodent branches.