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Viral diseases of Paris spp. have become serious problems in cultivation of this group of important medicinal plants in China. In this study, eight viruses were identified in the diseased plants of Paris yunnanensis by high-throughput sequencing (HTS) and RT-PCR. These viruses include three novel viruses (two potyviruses and one nepovirus), Hippeastrum chlorotic ringspot virus (HCRV)，Lychnis mottle virus (LycMoV), Paris mosaic necrosis virus (PMNV), Paris virus 1 and pepper mild mottle virus. The three new viruses were tentatively named Paris potyvirus 3 (ParPV-3), Paris potyvirus 4 (ParPV-4), Paris nepovirus 1 (ParNV-1) and their complete genome sequences were determined. Sequence analyses showed ParPV-3 and ParPV-4 shared the highest amino acid (aa) sequence identities of 54.3% to each other and 53.0-57.8% to other known potyviruses. ParNV-1 had aa sequence identities of 28.8-63.7% at protease-polymerase (Pro-Pol) with other nepoviruses. Phylogenetic analyses further support that t

United statesFrance generalPotyviridae adamsPotyvirus chenBetaflexiviridae dongSecoviridae dullemansCucurbitaceae xuParidis rhizomaJacq salisbVpg polPotyvirus yangVirgaviridae wenTobamovirus chenSecoviridae thompsonClustal omegaNational science foundation of china