Best fit QTL models for different numbers of QTL for the <i>D. santomea</i> and <i>D. yakuba</i> backcrosses.

†<p>For the <i>D. santomea</i> backcross, this is the effect of introducing one <i>D. yakuba</i> allele of the specified QTL, and vice versa for the <i>D. yakuba</i> backcross.</p>‡<p>Log likelihood ratios comparing the full model to a model with the specified QTL removed.</p>§<p>This alternative four QTL model for the <i>D. santomea</i> backcross did not have a substantially lower LOD score than the best-fit four QTL model, suggesting that it is not possible to differentiate between a QTL at ∼15.7 Mb and at ∼29 Mb on chromosome 2.</p>**<p>An alternative two QTL models with one QTL at ∼15.7 had LOD scores at least 0.76 LOD lower than the best-fit model.