Figure 1.

Effects of Drift, Mutation and Migration on θ and β as a function of generation. For all panels, $N_1=10,000\hspace{0.17em}\text{and}\hspace{0.17em}{N}_2=100$. Left column (A, C, E) ${\theta }^1$ in red, ${\theta }^2$ in blue, ${\theta }^{12}$ in orange. Right column (B, D, F) ${\beta }_{\mathrm{WT}}^1$ in red, ${\beta }_{\mathrm{WT}}^2$ in blue, ${\beta }_{\mathrm{WT}}$ in orange. (A, B) Drift only (no mutation nor migration). ${\theta }^1,{\theta }^2$ and β tend to 1, ${\theta }^{12}=\mathrm{0.000.}$ (C, D) Drift and Mutation $\mu ={10}^{-3},m_1=m_2=0.$ θ and β have positive limits <1. At equilibrium, ${\theta }^1=0.024,{\theta }^2=0.714,{\theta }^{12}=0.000,{\beta }_{\mathrm{WT}}^1=0.024,{\beta }_{\mathrm{WT}}^2=0.714,{\beta }_{\mathrm{WT}}=\mathrm{0.369.}$ (E, F) Drift, Mutation and Migration. $\mu ={10}^{-3},m_1={10}^{-2},m_2=0.$ θ positive and <1, ${\beta }_{\mathrm{WT}}$ is positive but ${\beta }_{\mathrm{WT}}^1$ is negative. At equilibrium, ${\theta }^1=0.543,{\theta }^2=0.714,{\theta }^{12}=0.596,{\beta }_{\mathrm{WT}}^1=-0.131,{\beta }_{\mathrm{WT}}^2=0.292,{\beta }_{\mathrm{WT}}=\mathrm{0.080.}$