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Research article - Peer-reviewed, 2017

Functional evolution of Lepidoptera olfactory receptors revealed by deorphanization of a moth repertoire

de Fouchier, Arthur; Walker, William B., III; Montagne, Nicolas; Steiner, Claudia; Binyameen, Muhammad; Schlyter, Fredrik; Chertemps, Thomas; Maria, Annick; Francois, Marie-Christine; Monsempes, Christelle; Anderson, Peter; Hansson, Bill S.; Larsson, Mattias C.; Jacquin-Joly, Emmanuelle

Abstract

Insects detect their hosts or mates primarily through olfaction, and olfactory receptors (ORs) are at the core of odorant detection. Each species has evolved a unique repertoire of ORs whose functional properties are expected to meet its ecological needs, though little is known about the molecular basis of olfaction outside Diptera. Here we report a pioneer functional analysis of a large array of ORs in a lepidopteran, the herbivorous pest Spodoptera littoralis. We demonstrate that most ORs are narrowly tuned to ubiquitous plant volatiles at low, relevant odorant titres. Our phylogenetic analysis highlights a basic conservation of function within the receptor repertoire of Lepidoptera, across the expansive evolutionary radiation of different major clades. Our study provides a reference for further studies of olfactory mechanisms in Lepidoptera, a historically crucial insect order in olfactory research.

Keywords

Chemical ecology; Entomology; Olfactory receptors; Phylogenetics

Published in

Nature Communications
2017, volume: 8, article number: 15709

Authors' information

de Fouchier, Arthur
University of Amsterdam
Walker, William
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Steiner, Claudia
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Steiner, Claudia
Sorbonne Université
Binyameen, Muhammad
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Binyameen, Muhammad
Bahauddin Zakariya University
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Jacquin-Joly, Emmanuelle
National Institute of Agricultural Research (INRA)

UK√Ą Subject classification

Biochemistry and Molecular Biology
Ecology
Evolutionary Biology

Publication Identifiers

DOI: https://doi.org/10.1038/ncomms15709

URI (permanent link to this page)

https://res.slu.se/id/publ/83742