AI Article Synopsis
- Researchers in Hawaii sequenced the complete genome of a new virus called pineapple secovirus B (PSV-B) that infects pineapples.
- The virus has two RNA segments, RNA1 and RNA2, which code for a single large polyprotein with important functions in virus replication and movement.
- PSV-B represents a new species in a specific group of viruses, showing significant genetic differences from already recognized species, particularly in certain protein regions.
Article Abstract
The complete genome sequence of pineapple secovirus B (PSV-B), a new virus infecting pineapple (Ananas comosus) on the island of Oahu, Hawaii, was determined by high-throughput sequencing (HTS). The genome comprises two RNAs that are 5,956 and 3,808 nt long, excluding the 3'-end poly-A tails, both coding for a single large polyprotein. The RNA1 polyprotein contains five conserved domains associated with replication, while the RNA2 polyprotein is cleaved into the movement protein and coat protein. PSV-B is representative of a new species in the subgenus Cholivirus (genus Sadwavirus; family Secoviridae), as the level of amino acid sequence identity to recognized members of this subgenus in the Pro-Pol and coat protein regions is below currently valid species demarcation thresholds.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9741570 | PMC |
| http://dx.doi.org/10.1007/s00705-022-05590-9 | DOI Listing |
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