Researchers created a complete genetic blueprint of a poisonous mushroom called Trichoderma cornu-damae that can be mistaken for medicinal mushrooms. Using advanced DNA sequencing techniques, they mapped all seven chromosomes and identified over 8,500 genes in this toxic fungus. This genetic map will help scientists understand how the mushroom produces dangerous toxins that harm rapidly growing cells. The work provides important information for identifying and studying this poisonous species.