Genomic characterization and seed transmission of a novel unclassified partitivirus infecting Polygonatum kingianum Coll. et Hemsl

This study identified a novel virus in the family Partitiviridae infecting Polygonatum kingianum Coll. et Hemsl, which is tentatively named polygonatum kingianum cryptic virus 1 (PKCV1). PKCV1 genome has two RNA segments: dsRNA1 (1926 bp) has an open reading frame (ORF) encoding an RNA-dependent RNA...

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Detalles Bibliográficos
Autores principales: Zhang, Fan, Su, Xiaoxia, Zhang, Shaozhi, Wang, Maosen, Wang, Tiantian, Zheng, Xue, Wu, Kuo, Zheng, Kuanyu, Zhang, Zhongkai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248264/
https://www.ncbi.nlm.nih.gov/pubmed/37303532
http://dx.doi.org/10.1016/j.heliyon.2023.e16719
Descripción
Sumario:This study identified a novel virus in the family Partitiviridae infecting Polygonatum kingianum Coll. et Hemsl, which is tentatively named polygonatum kingianum cryptic virus 1 (PKCV1). PKCV1 genome has two RNA segments: dsRNA1 (1926 bp) has an open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp) of 581 amino acids (aa), and dsRNA2 (1721 bp) has an ORF encoding a capsid protein (CP) of 495 aa. The RdRp of PKCV1 shares 20.70–82.50% aa identity with known partitiviruses, and the CP of PKCV1 shares 10.70–70.80% aa identity with known partitiviruses. Moreover, PKCV1 phylogenetically clustered with unclassified members of the Partitiviridae family. Additionally, PKCV1 is common in P. kingianum planting regions and has a high infection rate in P. kingianum seeds.

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