 Indeed, homoploid speciation (hybrid speciation without a change in chromosome number) has been evidenced for some fungal species (such as the basidiomycota "Microbotryum violaceum").As for plants and animals, fungal hybrids and polyploids display structural and functional modifications compared to their progenitors and diploid counterparts.In particular, the structural and functional outcomes of polyploid "Saccharomyces" genomes strikingly reflect the evolutionary fate of plant polyploid ones.