Figure 5

Simpson diversity index (1-D) at the start of the experiments and throughout the experiment. The most common heterokaryon at the third harvesting is indicated, preceded by its percentage at this last stage. At the third harvesting, the two treatments with different starting frequencies were significantly different in diversity (grey shape encompasses non-significantly different diversity measures assessed by a pairwise Student’s t test). Due to contamination, for some treatments, no data were obtained for the fourth harvesting.