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Twenty five new viruses associated with the Drosophilidae (Diptera)

Claire L. Webster, Ben Longdon, Samuel H. Lewis, Darren J. Obbard
doi: https://doi.org/10.1101/041665
Claire L. Webster
1Institute for Evolutionary Biology, University of Edinburgh, Kings Buildings, EH9 3JT, United Kingdom
2Present Address: Life Sciences, University of Sussex, United Kingdom
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Ben Longdon
3Present Address: Department of Genetics, University of Cambridge, Downing Street, Cambridge, CB2 3EH
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Samuel H. Lewis
1Institute for Evolutionary Biology, University of Edinburgh, Kings Buildings, EH9 3JT, United Kingdom
3Present Address: Department of Genetics, University of Cambridge, Downing Street, Cambridge, CB2 3EH
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Darren J. Obbard
1Institute for Evolutionary Biology, University of Edinburgh, Kings Buildings, EH9 3JT, United Kingdom
4Centre for Immunity, Infection and Evolution, University of Edinburgh, Kings Buildings, EH9 3JT, United Kingdom
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  • For correspondence: darren.obbard@ed.ac.uk
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Abstract

Drosophila melanogaster is an important laboratory model for studies of antiviral immunity in invertebrates, and Drosophila species provide a valuable system to study virus host range and host switching. Here we use metagenomic RNA sequencing of ca. 1400 adult flies to discover 25 new RNA viruses associated with six different drosophilid hosts in the wild. We also provide a comprehensive listing of viruses previously reported from the Drosophilidae. The new viruses include Iflaviruses, Rhabdoviruses, Nodaviruses, and Reoviruses, and members of unclassified lineages distantly related to Negeviruses, Sobemoviruses and Poleroviruses, Flaviviridae, and Tombusviridae. Among these are close relatives of Drosophila X virus and Flock House Virus, which we find in association with wild Drosophila immigrans. These two viruses are widely used in experimental studies, but have not been reported to naturally infect Drosophila. Although we detect no new DNA viruses, in D. immigrans and D. obscura we identify sequences almost identical to Armadillidium vulgare Iridescent Virus (Invertebrate Iridescent Virus 31), bringing the total number of DNA viruses found in the Drosophilidae to three.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted February 28, 2016.
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Twenty five new viruses associated with the Drosophilidae (Diptera)
Claire L. Webster, Ben Longdon, Samuel H. Lewis, Darren J. Obbard
bioRxiv 041665; doi: https://doi.org/10.1101/041665
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Twenty five new viruses associated with the Drosophilidae (Diptera)
Claire L. Webster, Ben Longdon, Samuel H. Lewis, Darren J. Obbard
bioRxiv 041665; doi: https://doi.org/10.1101/041665

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