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Viruses 2017, 9(8), 214; doi:10.3390/v9080214

Characterization of a Novel RNA Virus Discovered in the Autumnal Moth Epirrita autumnata in Sweden

1
Department of Ecology, Swedish University of Agricultural Sciences, 750-07 Uppsala, Sweden
2
Department of Medical Sciences, Uppsala University, 751-85 Uppsala, Sweden
Present address: Vanadis Diagnostics, a Perkin-Elmer Company, Vetenskapsvägen 10, 191-38 Sollentuna, Sweden.
Present address: Department of Cell and Molecular Biology, BMC, Uppsala University, Uppsala 751-23, Sweden.
*
Author to whom correspondence should be addressed.
Academic Editor: Karyn Johnson
Received: 4 July 2017 / Revised: 28 July 2017 / Accepted: 2 August 2017 / Published: 8 August 2017
(This article belongs to the Section Insect Viruses)
View Full-Text   |   Download PDF [924 KB, uploaded 31 August 2017]   |  

Abstract

A novel, 10 kb RNA virus—tentatively named ‘Abisko virus’—was discovered in the transcriptome data of a diseased autumnal moth (Epirrita autumnata) larva, as part of a search for the possible causes of the cyclical nature and mortality associated with geometrid moth dynamics and outbreaks in northern Fennoscandia. Abisko virus has a genome organization similar to that of the insect-infecting negeviruses, but phylogenetic and compositional bias analyses also reveal strong affiliations with plant-infecting viruses, such that both the primary host origin and taxonomic identity of the virus remain in doubt. In an extensive set of larval, pupal, and adult autumnal moth and winter moth (Operophtera brumata) outbreak samples, the virus was only detected in a few adult E. autumnata moths as well as the single larval transcriptome. The Abisko virus is therefore unlikely to be a factor in the Fennoscandia geometrid population dynamics. View Full-Text
Keywords: Epirrita autumnata; autumnal moth; Abisko virus; negevirus; Operophtera brumata; outbreak mortality Epirrita autumnata; autumnal moth; Abisko virus; negevirus; Operophtera brumata; outbreak mortality
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MDPI and ACS Style

de Miranda, J.R.; Hedman, H.; Onorati, P.; Stephan, J.; Karlberg, O.; Bylund, H.; Terenius, O. Characterization of a Novel RNA Virus Discovered in the Autumnal Moth Epirrita autumnata in Sweden. Viruses 2017, 9, 214.

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