Figure 5

Progeny viability assays performed in the two selective environments, using a subset of matings in Experiment L at assay point 7. The PE matings are indicated by grey squares and are grouped by which selective environment both lineages classes were adapted to. The DE matings are indicated by white diamonds and are grouped by which lineage class acted as the female. For DE matings, dashed lines join the same mating class in the two selective environments. Means not connected by the same letter are significantly different from each other, as determined by Fisher Exact tests for each environment separately. Mean n per mating class > 668 ascospores scored per environment. Errors bars are standard error.