Supplemental Material for Sampoux, Giraud, and Litrico, 2019 SampouxJean-Paul GiraudHeloïse LitricoIsabelle 2019 Figure S1 displays responses to selection of the mixture performance of two species and of species contributions to the mixture performance after recombinaison of selected candidates expected from one cycle of recurrent selection for Reciprocal Mixture Ability between the two species.<div>Figure S2 displays the responses to selection expected from one cycle of recurrent selection for Reciprocal Mixture Ability between two species aiming to equate the expected responses of the contributions of the two species to the performance of their mixture.</div><div>Figure S3 displays the responses to selection expected after one cycle of parallel recurrent selections in two species for General Mixture Ability with the other species aiming to equate the expected responses of the contributions of the two species to the performance of their mixture.</div><div>File S1 presents a Matlab script of nonlinear constraint optimization aiming to find the best set of index weights of species contributions with Selection for General Mixture Ability </div>