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A Highly Divergent Picornavirus Infecting the Gut Epithelia of Zebrafish (Danio rerio) in Research Institutions Worldwide.

08:00 EDT 2nd April 2019 | BioPortfolio

Summary of "A Highly Divergent Picornavirus Infecting the Gut Epithelia of Zebrafish (Danio rerio) in Research Institutions Worldwide."

Zebrafish have been extensively used as a model system for research in vertebrate development and pathogen-host interactions. We describe the complete genome of a novel picornavirus identified during a viral metagenomics analysis of zebrafish gut tissue. The closest relatives of this virus showed identity of <20% in their P1 capsids and <36% in their RdRp qualifying zebrafish picornavirus-1 (ZfPV-1) as member of a novel genus with a proposed name of Cyprivirus. Reverse transcription (RT)-PCR testing of zebrafish from North America, Europe, and Asia showed ZfPV-1 to be globally distributed, being detected in 23 of 41 (56%) institutions tested. In situ hybridization of whole zebrafish showed viral RNA was restricted to a subset of enterocytes and cells in the subjacent lamina propria of the intestine and the intestinal mucosa. This naturally occurring and apparently asymptomatic infection (in wild-type zebrafish lineage AB) provides a natural infection system to study picornavirus-host interactions in an advanced vertebrate model organism. Whether ZfPV-1 infection affects any immunological, developmental, or other biological processes in wild-type or mutant zebrafish lineages remains to be determined.

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This article was published in the following journal.

Name: Zebrafish
ISSN: 1557-8542
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