Figure 2.

Nested model composition, single-phenotype (naive) search (Simulation Set 1). As Figure 1, except for the single-phenotype (naive) model search, in which D_b is entirely withheld from the model selection process. Note that since no pleiotropic models were fitted, all pleiotropic SNPs that were discovered were of course incorrectly modeled with the single-phenotype model. Furthermore, all correctly modeled SNPs were always associated with D_a only.