Abstract
Deep-sequencing analysis of a chrysanthemum plant with yellow dwarf symptoms led to the discovery of a novel putative cytorhabdovirus, here tentatively named "chrysanthemum yellow dwarf associated virus" (CYDaV). Its negative-sense single-stranded RNA genome comprises 14,086 nucleotides and contains eight open reading frames in the order 3' leader-N-P'-P-P3-M-G-P6-L-5' trailer. CYDaV shares moderate sequence similarity (< 54.2% nucleotide and 51% amino acid sequence identity) with its cytorhabdovirus counterparts in cognate genes. Phylogenetic analysis showed that CYDaV clustered with strong support with alfalfa dwarf virus, raspberry vein chlorosis virus, and strawberry crinkle virus. These findings suggest that CYDaV should be considered a novel member of the genus Cytorhabdovirus, family Rhabdoviridae.
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