Worldwide sampling of Colletotrichum graminicola. A Map showing a likely colonisation route of C. graminicola reconstructed by Approximate Bayesian Computation (ABC) using 208 isolates from 17 countries. Different colours indicate distinct lineages and arrows indicate divergence events: (1) first divergence event from NA to BR; (2) second divergence event from NA to EU; B the most strongly supported demographic model was selected based on random forest population voting (see Suppl. material 2 for details).