Genome assembly and annotation
Raw sequencing reads were trimmed with Trimmomatic v.0.12 (Bolger, Lohse, & Usadel, 2014) and assembled with SPAdes v.3.12.0 (Bankevich et al., 2012). Assembled genomes are accessioned in GenBank (Supplementary Table 1). FunAnnotate (Palmer & Stajich, 2019) was used to annotate all examined genomes using protein models from the annotated P. cyanescens reference assembly (Reynolds et al., 2018), BUSCO models for Basidiomycota, and Augustus models from Laccaria bicolor (Martin et al., 2008).