Here, we characterized a novel mitovirus from the fungus Nigrospora oryzae, which was named "Nigrospora oryzae mitovirus 3" (NoMV3). The NoMV3 genome is 2,492 nt in length with a G + C content of 33%, containing a single large open reading frame (ORF) using the fungal mitochondrial genetic code. The ORF encodes an RNA-dependent RNA polymerase (RdRp) of 775 amino acids with a molecular mass of 88.
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