 A similar case is the well-known "Deceiver" mushroom "Laccaria laccata" which is now classified in the "Hydnangiaceae", "Hydnangium" being a gastroid genus.It has been found that a change in a single locus of a gene of the gilled mushroom "Lentinus tigrinus" causes it to have a closed fruiting body.This suggests that the emergence of a secotioid species may not require many mutations.