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Diverse Novel Viruses Coinfecting the Tropical Ornamental Plant Polyscias balfouriana in China

文献类型: 外文期刊

作者: Ma, Yuxin 1 ; Che, Haiyan 1 ; Gao, Shengfeng 3 ; Lin, Yating 1 ; Li, Shifang 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China

2.Guizhou Univ, State Key Lab Breeding Base Green Pesticide & Agr, Minist Educ, Key Lab, Guiyang 550025, Peoples R China

3.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Wanning 571533, Peoples R China

4.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

关键词: Polyscias balfouriana; virus discovery; coinfection; ornamental plant; Betaflexiviridae; Closteroviridae; Capillovirus; Citrivirus; Crinivirus

期刊名称:VIRUSES-BASEL ( 影响因子:5.818; 五年影响因子:5.811 )

ISSN:

年卷期: 2022 年 14 卷 6 期

页码:

收录情况: SCI

摘要: The viromic profile of Polyscias balfouriana cv. Marginata, a perennial woody and ornamental plant, was determined using ribosomal RNA-depleted total RNA (rRNA-depleted totRNA) sequencing. Five viruses (i.e., polyscias mosaic virus, PoMV; one potential novel rhabdovirus; and three novel viruses of Betaflexiviridae and Closteroviridae) were detected and prevalence-surveyed in Hainan province, China. The genomes of polyscias capillovirus 1 (PCaV-1) and polyscias citrivirus 1 (PCiV-1) of family Betaflexiviridae were completed, and the genomes of polyscias crinivirus 1 (PCrV-1) of Closteroviridae were nearly completed lacking the 5 ' and 3 ' termini. PCaV-1 shares 68% genome nucleotide (nt) identity and 66% replicase (Rep) amino acid (aa) identity with homologues in apple stem grooving virus (ASGV). PCiV-1 shares 65% genome nt identity and 64% Rep aa identity with homologs in citrus leaf blotch virus (CLBV). Meeting the species demarcation criteria, PCaV-1 and PCiV-1 were considered to be new species in genera Capillovirus and Citrivirus, respectively. PCrV-1 shares high genome nt identity (62%), heat shock protein 70-like protein (HSP70h) and RNA-dependent RNA polymerase (RdRp) aa identity (78-80%) with homologues in tomato chlorosis virus (ToCV). We tentatively consider PCrV-1 to be an unclassified member of the Crinivirus genus. PoMV, PCaV-1, PCiV-1, and PCrV-1 are the prevalent viruses with >73% occurrence in the Xinglong Tropical Botanical Garden, Hainan, China.

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[1]Diverse Novel Viruses Coinfecting the Tropical Ornamental Plant Polyscias balfouriana in China. Ma, Yuxin,Che, Haiyan,Lin, Yating,Li, Shifang,Ma, Yuxin,Gao, Shengfeng,Li, Shifang. 2022

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