Abstract
In 2019, plants of the genus Viola showing yellow mottling symptoms were collected in Liaoning, China. RNA sequencing and PCR both confirmed the presence of a reverse-transcribing DNA virus. The novel virus was named "viola yellow mottle virus" (VYMV), and its 9,872-bp genome was found to contain eight open reading frames. The polymerase (RT+RNase H) gene shared the most similarity (31.6% nucleotide and 41.6% amino acid sequence identity) with that of rose yellow vein virus (RYVV, NC_020999), which is currently the only member of the genus Rosadnavirus. Phylogenetic analysis indicated a close relationship between these viruses, suggesting that VYMV should be considered a new member of the genus Rosadnavirus.
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