Figure 4.

Average coalescence time at a linked locus, as a function of the recombination distance from the focal locus where a mutant fixed in exactly t_m generations, starting from a single copy t_m generations ago. t_m = 15 in black, t_m = 20 in red, and t_m = 40 in blue. The dots are calculated with 2-locus WF simulations, and compared to Equation (5) with either a numerical estimation (solid lines) or a theoretical estimation (dashed lines) of ${\overline{x}}_t$ and $P\left(T^{\left(\mathrm{f}\right)}\right)$. N_c = 20. N₀ = 1,500. The population experienced a contraction t_c = t_m generations ago.