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Two double stranded RNAs (dsRNA), likely representing the genome of a novel deltapartitivirus, provisionally named carnation cryptic virus 3 (CCV3), were recovered from Dianthus amurensis. The two dsRNAs were 1,573 (dsRNA1) and 1,561 (dsRNA2) bp in size, each containing a single open reading frame (ORF) encoding a 475- and 411-aa protein, respectively. The 475-aa protein contains a conserved RNA dependent RNA polymerase (RdRp) domain which shows significant homology to RdRps of established or putative partitiviruses, particularly those belonging to the genus Deltapartitivirus. However, it shares an amino acid identity of 75% with its closest relative, the RdRp of the deltapartitivirus beet cryptic virus 2 (BCV2), and is

A double-stranded RNA (dsRNA), PN-S, isolated from Panax notoginseng was sequenced and characterized. dsRNA PN-S was determined to be 5003 base pairs (bp) in length and to have a genome organization similar to that of totiviruses. The two deduced proteins encoded by dsRNA PN-S have the highest amino acid (aa) sequence identity to CP and RNA-dependent RNA polymerase (RdRp) of black raspberry virus F (BrVF), a tentative member of the genus Totivirus, family Totiviridae, at 39% and 54%, respectively. In a phylogenetic tree based on an alignment of the RdRp amino acid sequences of dsRNA PN-S and selected totiviruses, dsRNA PN-S formed a monophyletic clade with dsRNA viruses belonging to the genus Totivirus. These data suggest that dsRNA PN-S may represent the genome of a member of a novel species of the genus Totivirus, family Totiviridae, for which we propose the name Panax notoginseng virus A (PnVA).