Nucleotide sequence and genome organization of atractylodes mottle virus, a new member of the genus Carlavirus.

The complete genome sequence of a member of a distinct species of the genus Carlavirus in the family Betaflexiviridae, tentatively named atractylodes mottle virus (AtrMoV), has been determined. Analysis of its genomic organization indicates that it has a single-stranded, positive-sense genomic RNA of 8866 nucleotides, excluding the poly(A) tail, and consists of six open reading frames typical of members of the genus Carlavirus. The individual open reading frames of AtrMoV show moderately low sequence similarity to those of other carlaviruses at the nucleotide and amino acid sequence levels. Pairwise comparison and phylogenetic analysis suggest that AtrMoV is most closely related to chrysanthemum virus B.