Ryabov, Eugene , Keane, Gary, Naish, Neil, Evered, Carol and Winstanley, Doreen. (2009) Densovirus induces winged morphs in asexual clones of the rosy apple aphid, Dysaphis plantaginea. National Academy of Sciences. Proceedings, Vol.10 (No.21). pp. 8465-8470. ISSN 0027-8424

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Abstract

Winged morphs of aphids are essential for their dispersal and survival. We discovered that the production of the winged morph in asexual clones of the rosy apple aphid, Dysaphis plantaginea, is dependent on their infection with a DNA virus, Dysaphis plantaginea densovirus (DplDNV). Virus-free clones of the rosy apple aphid, or clones infected singly with an RNA virus, rosy apple aphid virus (RAAV), did not produce the winged morph in response to crowding and poor plant quality. DplDNV infection results in a significant reduction in aphid reproduction rate, but such aphids can produce the winged morph, even at low insect density, which can fly and colonize neighboring plants. Aphids infected with DplDNV produce a proportion of virus-free aphids, which enables production of virus-free clonal lines after colonization of a new plant. Our data suggest that a mutualistic relationship exists between the rosy apple aphid and its viruses. Despite the negative impact of DplDNV on rosy apple aphid reproduction, this virus contributes to their survival by inducing wing development and promoting dispersal.

Item Type:	Journal Article
Subjects:	S Agriculture > SB Plant culture
Divisions:	Faculty of Science > Life Sciences (2010- ) > Warwick HRI (2004-2010)
Library of Congress Subject Headings (LCSH):	Aphids -- Genetics, Apples -- Diseases and pests, Insects -- Diseases, Parvoviruses
Journal or Publication Title:	National Academy of Sciences. Proceedings
Publisher:	National Academy of Sciences
ISSN:	0027-8424
Date:	10 April 2009
Volume:	Vol.10
Number:	No.21
Page Range:	pp. 8465-8470
Identification Number:	10.1073/pnas.0901389106
Status:	Peer Reviewed
Access rights to Published version:	Open Access
Funder:	Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC), Great Britain. Dept. for Environment, Food & Rural Affairs (DEFRA)
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URI:	http://wrap.warwick.ac.uk/id/eprint/704

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