ArticleCommunications biology2026
Two coinfecting archaeal viruses provide insights into virus-virus interactions.
Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Complete Genome Sequence of Halorubrum Pleomorphic Virus 8.F1000Research · 2026Article
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Virus-virus interactions can profoundly shape viral ecology and evolution, yet they remain poorly understood, particularly in haloarchaea. Upon characterization of a spindle-shaped virus, Tebenquiche spindle-shaped virus 1 (Tebi-SV1), isolated from Halorubrum strain TLS-6, we detected the presence of a second virus, Tebenquiche pleomorphic virus 1 (Tebi-PV1), that coinfects host cells. Gene sharing network analysis revealed several genomes related to Tebi-SV1 in public databases, most of which also co-occur with pleolipoviruses in their host genomes. Attempts to separate the two viruses were unsuccessful, suggesting a symbiotic relationship between Tebi-SV1 and Tebi-PV1. We discovered that virus abundances may be regulated through a shared operator sequence allowing Tebi-PV1 to keep Tebi-SV1 copy numbers low without excluding Tebi-SV1 from the host genome. Additionally, Tebi-PV1 encodes and expresses a type-4-pilin, that likely plays a role in regulating the interactions between the host and the viruses. Our findings highlight the complexity of virus-virus interactions and that resident viruses are important regulators of virus-host interactions.
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