Figure 4From: Divergent adaptation promotes reproductive isolation among experimental populations of the filamentous fungus NeurosporaProgeny viability in the permissive environment for matings in Experiment L (a) and Experiment H (b). Matings in which the female lineage was fertilized by males evolved in the parallel environment (PE matings, n = 12) or the divergent environment (DE matings, n = 18), are in grey or white, respectively. For clarity, the paternal lineage-classes are also shown. Asterisks indicate significance differences between mating classes, as determined by Fisher exact tests (two-tailed) using ascospore germination/non-germination frequencies. Mean n per maternal lineage-class > 3360 ascospores scored. Errors bars are standard error.Back to article page