Re-shaping the family-level classification of Agaricineae (Agaricales, Basidiomycota) using a phylogenomic approach

Genomic-level data have enabled us to infer better resolved phylogenetic estimates and revolutionised our views on fungal relationships. Agaricineae is the largest suborder of Agaricales and mainly comprises the brown- and dark-spored Agaricales with thick-walled and pigmented basidiospores. Our study is the most extensive phylogenomic study of the suborder Agaricineae to date including 54 genera and 86 species. For 25 of them, shallow whole genome sequence data were produced in this study from dried fungarium specimens collected between 1997 and 2016. A total of 24 families is recognised including five that are proposed as new: Agrocybaceae, Galerinaceae, Hemipholiotaceae, Kuehneromycetaceae and Phaeocollybiaceae. In addition, Battarreaceae and Chromocyphellaceae are accepted at family level based on previous phylogenetic studies, bringing the total number of accepted families in the suborder Agaricineae to 26. The families are further grouped into eight informal “superfamilies”: Agaricacea, Bolbitiacea, Cortinariacea, Galeropsidacea, Inocybacea, Nidulariacea, Psathyrellacea, and Strophariacea. Several families have been emended based on the current study and recent phylogenetic studies and as a result, a total of 190 genera are listed as accepted in suborder Agaricineae.