Genome maps of selected mriyaviruses. Genes with predicted functions are shown by color-coded block arrows. Circles near contig names indicate contigs with direct terminal repeats. Abbreviations: ATPase, DNA packaging ATPase; HUH, mriyavirus HUH endonuclease; HUH_long, conserved gamadvirus protein containing a C-terminal domain homologous to mriyavirus HUH endonuclease; ITR, inverted terminal repeats; MCP, major capsid protein; mCP, minor capsid protein; PDDEXK, PDDEXK superfamily endonuclease; PolB, family B DNA polymerase; RuvC, RuvC-like Holliday junction resolvase homologous to poxvirus A22 resolvase; ssb, single-strand DNA binding protein; VLTF2, virus late transcription factor 2; VLTF3, virus late transcription factor 3; Mriya_1, conserved domain homologous to yaravirus gene 1; Mriya_48, yaravirus gene 48 homolog; Mriya_50, yaravirus gene 50 homolog; Mriya_51, yaravirus gene 51 homolog. Genome maps of all 60 mriyavirus representative genomes are available at https://ftp.ncbi.nih.gov/pub/yutinn/mriya_2024.