The Heterobasidion annosum species complex are common fungal pathogens that cause root and butt rot in conifer plantations and natural forests throughout the northern hemisphere.
Fruit body of Heterobasidion sp. Photo: Jonàs Oliva.
Within several genome projects we study evolutionary history of the Heterobasidion annosum species complex and biology including development, non-self recognition, mating and secondary metabolism. The genome projects will enable us to identify pathogenicity determinants and get insights into the mechanisms of the interactions between the pathogen and the host trees. The increased knowledge of the fungus will make an invaluable contribution to the possibility of controlling the disease.