Bamford, C. G.G., de Souza, W. M., Parry, R. and Gifford, R. J. (2022) Comparative analysis of genome-encoded viral sequences reveals the evolutionary history of flavivirids (family Flaviviridae). Virus Evolution, 8(2), veac085. (doi: 10.1093/ve/veac085) (PMID:36533146) (PMCID:PMC9752770)
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Abstract
The flavivirids (family Flaviviridae) are a group of positive-strand RNA viruses that pose serious risks to human and animal health on a global scale. Here we use flavivirid-derived DNA sequences, identified in animal genomes, to reconstruct the long-term evolutionary history of family Flaviviridae. We demonstrate that flavivirids are >100 million years old and show that this timing can be combined with dates inferred from co-phyletic analysis to produce a cohesive overview of their evolution, distribution and diversity wherein the main flavivirid subgroups originate in early animals and broadly co-diverge with major animal phyla. In addition, we reveal evidence that the ‘classical flaviviruses’ of vertebrates, most of which are transmitted via blood-feeding arthropod vectors, originally evolved in hematophagous arachnids and later acquired the capacity to be transmitted by insects. Our findings imply that the biological properties of flavivirids have been acquired gradually over the course of animal evolution. Thus, broad-scale comparative analysis will likely reveal fundamental insights into their biology. We therefore published our results via an open, extensible, database (Flavivirid-GLUE), which we constructed to facilitate the wider utilisation of genomic data and evolution-related domain knowledge in flavivirid research.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Gifford, Dr Robert and Bamford, Dr Connor |
| Authors: | Bamford, C. G.G., de Souza, W. M., Parry, R., and Gifford, R. J. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Infection & Immunity > Centre for Virus Research |
| Journal Name: | Virus Evolution |
| Publisher: | Oxford University Press |
| ISSN: | 2057-1577 |
| ISSN (Online): | 2057-1577 |
| Published Online: | 06 September 2022 |
| Copyright Holders: | Copyright © 2022 The Authors |
| First Published: | First published in Virus Evolution 8(2): veac085 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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