Most mushroom-forming fungi are very difficult to work with in the lab, since they grow very slowly or because they are not genetically accessible. For this reason we use a model species for mushroom development, called Schizophyllum commune. In the course of the project, we developed several new methods to efficiently study the genes of mushrooms. This includes a CRISPR/Cas9 method to edit the genome of mushrooms, as well as an approach to study the structure and regulation of the genome.
Using these techniques, we have now identified over 15 regulators of mushroom development. We now better understand how fungi detect environmental signals, and how they process this information, allowing them to decide where to form a mushroom. Furthermore, we discovered that individual strains of a species of mushrooms can be genetically very diverse, which is an important new insight into the evolution of these mushroom-forming fungi.
In conclusion, we now understand mushroom development much better. Next, our results may be used to improve the efficiency of mushroom cultivation, and may also allow us to commercially grow species that are currently unculturable.