Nucleic Acid
The Mr of the genome constitutes 5-5.075-5.15% of the virion by weight. The genome is monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered. Minor species of non-genomic nucleic acid are not found in virions. The genome is sequenced, and complete sequence is about 7100-13220-20000 nucleotides long. The genome has a base ratio of 23.4-25.9-28.4 % guanine; 24.4-25.35-26.3 % adenine; 21-22.95-24.9 % cytosine; 22.3-25.8-29.3 % uracil. The genome sequence has termini with potential hairpin structure (near 3'-end). The 5'-end of the genome has a probably methylated nucleotide cap.
GenBank records for nucleotide sequences; complete genome sequences.