Figure 3.

The quadratic regression coefficient $b_2$ as a function of the genetic correlation $r_{A_{v,1},A_{m,2}}$ for different values of $r_{A_{m,1},A_{v,1}}$ and $r_{A_{m,1},A_{m,2}}$ (${\sigma }_{A_{m,1}}^2={\sigma }_{A_{m,2}}^2=0.3,{\sigma }_{A_{v,1}}^2=0.05,{\sigma }_{e_1}^2\text{exp}\left(\left(1/2\right){\sigma }_{A_{v,1}}^2\right)=0.7,$ ${\sigma }_{e_2}^2=0.7,$ $r_e=0$).