Why do viruses make aphids winged?

Author:

Rozo‐Lopez Paula1ORCID,Parker Benjamin J.1ORCID

Affiliation:

1. Department of Microbiology University of Tennessee Knoxville Tennessee USA

Abstract

AbstractAphids are hosts to diverse viruses and are important vectors of plant pathogens. The spread of viruses is heavily influenced by aphid movement and behaviour. Consequently, wing plasticity (where individuals can be winged or wingless depending on environmental conditions) is an important factor in the spread of aphid‐associated viruses. We review several fascinating systems where aphid‐vectored plant viruses interact with aphid wing plasticity, both indirectly by manipulating plant physiology and directly through molecular interactions with plasticity pathways. We also cover recent examples where aphid‐specific viruses and endogenous viral elements within aphid genomes influence wing formation. We discuss why unrelated viruses with different transmission modes have convergently evolved to manipulate wing formation in aphids and whether this is advantageous for both host and virus. We argue that interactions with viruses are likely shaping the evolution of wing plasticity within and across aphid species, and we discuss the potential importance of these findings for aphid biocontrol.

Funder

National Science Foundation

Pew Charitable Trusts

Publisher

Wiley

Subject

Insect Science,Genetics,Molecular Biology

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