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The phylogenetic tree was constructed based on the RdRps of NoMV1, NoMV2, and other narnaviruses using the neighbor-joining method, with 1000 bootstrap replicates by MEGA 6.0 software. The bootstrap values (%) supporting the branches are indicated at the nodes. The scale bar represents a genetic distance of 0.2 amino acid substitutions per site. The NoMV1 and NoMV2 were indicated by black asterisk.
