Fig. 2

The phylogenetic relationship among various strains in U. virens and six related fungal species. a The phylogenetic distances among various U. virens strains (shadowed) are significantly shorter than those among the strains in other fungi as revealed by the phylogenetic tree. The single-copy homologous protein sequences of different strains in the indicated fungal species were aligned using ClustalW, and the tree was constructed using the Neighbor-Joining method in MEGA X with 1000 bootstraps. b The intraspecific phylogenetic tree for multiple U. virens strains based on the shared gene sequences in these strains. The full-length gene sequences in genome assemblies of all these strains were subjected to multiple alignments. The tree was constructed using the Neighbor-Joining method in MEGA X with 1000 bootstraps. c The relative size of lineage-specific regions (LSRs) and the percentage of repetitive elements accounting for LSRs in different U. virens strains. The relative size of LSRs is represented by the area of the circle, while the percentage of repetitive elements in LSRs is indicated by orange in circles