Endogenous amdoparvovirus-related elements reveal insights into the biology and evolution of vertebrate parvoviruses

Pénzes, J. J., Marsile-Medun, S., Agbandje-McKenna, M. and Gifford, R. J. (2018) Endogenous amdoparvovirus-related elements reveal insights into the biology and evolution of vertebrate parvoviruses. Virus Evolution, 4(2), vey026. (doi: 10.1093/ve/vey026) (PMID:30443409) (PMCID:PMC6232428)

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Amdoparvoviruses (family Parvoviridae: genus Amdoparvovirus) infect carnivores, and are a major cause of morbidity and mortality in farmed animals. In this study, we systematically screened animal genomes to identify endogenous parvoviral elements (EPVs) disclosing a high degree of similarity to amdoparvoviruses, and investigated their genomic, phylogenetic and protein structural features. We report the first examples of full-length, amdoparvovirus-derived EPVs in the genome of the Transcaucasian mole vole (Ellobius lutescens). We also identify four EPVs in mammal and reptile genomes that are intermediate between amdoparvoviruses and their sister genus (Protoparvovirus) in terms of their phylogenetic placement and genomic features. In particular, we identify a genome-length EPV in the genome of a pit viper (Protobothrops mucrosquamatus) that is more similar to a protoparvovirus than an amdoparvovirus in terms of its phylogenetic placement and the structural features of its capsid protein (as revealed by homology modeling), yet exhibits characteristically amdoparvovirus-like genome features including: (1) a putative middle ORF gene; (2) a capsid gene that lacks a phospholipase A2 domain; (3) a genome structure consistent with an amdoparvovirus-like mechanism of capsid gene expression. Our findings indicate that amdoparvovirus host range extends to rodents, and that parvovirus lineages possessing a mixture of proto- and amdoparvovirus-like characteristics have circulated in the past. In addition, we show that EPV sequences in the mole vole and pit viper encode intact, expressible replicase genes that have potentially been co-opted or exapted in these host species.

Item Type:Articles
Additional Information:RJG was funded by the Medical Research Council of the United Kingdom (MC_UU_12014/12). JJP and MAM were supported by a grant from the National Institutes of Health (NIH R01 GM109524).
Glasgow Author(s) Enlighten ID:Marsile-Medun, Ms Soledad and Gifford, Dr Robert
Authors: Pénzes, J. J., Marsile-Medun, S., Agbandje-McKenna, M., and Gifford, R. J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
Journal Name:Virus Evolution
Publisher:Oxford University Press
ISSN (Online):2057-1577
Published Online:12 November 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Virus Evolution 4(2): vey026
Publisher Policy:Reproduced under a Creative Commons License

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