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Research article - Peer-reviewed, 2017

Characterization of a novel RNA virus discovered in the autumnal moth Epirrita autumnata in Sweden

de Miranda, Joachim R.; Hedman, Harald; Onorati, Piero; Stephan, Jorg; Karlberg, Olof; Bylund, Helena; Terenius, Olle

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.

Keywords

Epirrita autumnata; autumnal moth; Abisko virus; negevirus; Operophtera brumata; outbreak mortality

Published in

Viruses
2017, volume: 9, number: 8, article number: 214

Authors' information

Swedish University of Agricultural Sciences, Department of Ecology
Hedman, Harald
Swedish University of Agricultural Sciences, Department of Ecology
Swedish University of Agricultural Sciences, Department of Ecology
Swedish University of Agricultural Sciences, Department of Ecology
Karlberg, Olof
Uppsala University
Swedish University of Agricultural Sciences, Department of Ecology
Swedish University of Agricultural Sciences, Department of Ecology

UKÄ Subject classification

Microbiology

Publication Identifiers

DOI: https://doi.org/10.3390/v9080214

URI (permanent link to this page)

https://res.slu.se/id/publ/83970