A maximum likelihood phylogenetic tree constructed based on an alignment of the respective RdRp amino acid sequences of MOBV2, MOBV5, MOBV6, MOBV7, and MoNV2 against other members of the families Botourmiaviridae and Narnaviridae. There were four established genera in the family Botourmiaviridae. MOBV2 was grouped into the genus Magoulivirus, while MOBV5, MOBV6, and MOBV7 (indicated with red dots) were grouped into three different clusters with certain unclassified Botourmiaviruses. Bootstrap values (%) obtained with 1000 replicates are indicated on branches. The names and GenBank accession numbers of other viruses are shown.