Potato virus S

Potato virus S (PVS) is a plant pathogenic virus. It was first reported in Netherlands.[1] PVS causes mild or no symptoms in most potato varieties. It is common in potatoes in many regions and does not cause significant yield losses. Field-grown potatoes are not routinely screened for this virus because it is not considered economically important. However, PVS often present in mixed infections with other potato viruses, which may accentuate symptom severity.[2]

Potato virus S
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Alsuviricetes
Order: Tymovirales
Family: Betaflexiviridae
Genus: Carlavirus
Species:
Potato virus S
Synonyms
  • Pepino latent virus

Genome and Phylogeny

The single-stranded, positive-sense RNA genome of PVS is approximately 8.5 kb in length and enclosed in its filamentous particle. This genome consists of a 5′ cap structure and an open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp), the triple gene-block proteins (TGBp1-3) involved in virus cell-to-cell movement, a NABP (cysteine-rich nucleic-acid-binding protein), and 34 kDa coat protein (CP).[3] Phylogenetic analysis using non-recombinant sequences of the (i) 95 CP; and (ii) 130 complete ORF, RdRp, and TGB sequences from GenBank, found that the global isolates were positioned within three main phylogroups: PVSI, PVSII or PVSIII.[4]

See also

References
  1. Wetter, C. (1971). AAB/CMI Descriptions of Plant Viruses, No. 60: Potato virus S. Warwick, UK: Association of Applied Biologists.
  2. Nyalugwe, Eviness P.; Wilson, Calum R.; Coutts, Brenda A.; Jones, Roger A. C. (1 January 2012). "Biological Properties of Potato virus X in Potato: Effects of Mixed Infection with Potato virus S and Resistance Phenotypes in Cultivars from Three Continents". Plant Disease. 96 (1): 43–54. doi:10.1094/pdis-04-11-0305.
  3. Martelli, Giovanni P.; Adams, Michael J.; Kreuze, Jan F.; Dolja, Valerian V. (8 September 2007). "Family Flexiviridae : A Case Study in Virion and Genome Plasticity". Annual Review of Phytopathology. 45 (1): 73–100. doi:10.1146/annurev.phyto.45.062806.094401.
  4. Topkaya, Şerife; Çelik, Ali; Santosa, Adyatma Irawan; Jones, Roger A. C. (May 2023). "Molecular Analysis of the Global Population of Potato Virus S Redefines Its Phylogeny, and Has Crop Biosecurity Implications". Viruses. 15 (5): 1104. doi:10.3390/v15051104. PMC 10224158.


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