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Exploring sub-lethal effects of exposure to a nucleopolyhedrovirus in the speckled wood (Pararge aegeria) butterfly

By Helen Hesketh, Melanie Gibbs, Casper J. Breuker, Hans Van Dyck, Emma Turner and Rosemary Hails

Abstract

This study investigated the sub-lethal effects of larval exposure to baculovirus on host life history and\ud wing morphological traits using a model system, the speckled wood butterfly Pararge aegeria (L.) and\ud the virus Autographa californica nucleopolyhedrovirus. Males and females showed similar responses to\ud the viral infection. Infection significantly reduced larval growth rate, whilst an increase in development\ud time allowed the critical mass for pupation to be attained. There was no direct effect of viral infection on\ud the wing morphological traits examined. There was, however, an indirect effect of resisting infection; larvae\ud that took longer to develop had reduced resource investment in adult flight muscle mass

Topics: Biology and Microbiology, Zoology, Ecology and Environment
Year: 2012
DOI identifier: 10.1016/j.jip.2011.10.013
OAI identifier: oai:nora.nerc.ac.uk:16223

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