Coprinus comatus, also known as the shaggy mane mushroom, is a nutritious edible mushroom with antioxidant properties. Researchers examined the genetic structure of this mushroom by counting nuclei in its spores and cells to understand how it reproduces. They discovered that the mushroom produces unique spores containing two nuclei and identified a new reproductive structure called oidia. This research will help farmers and breeders develop better cultivation and breeding strategies for this mushroom.