Shifts in Sensory Neuron Identity Parallel Differences in Pheromone Preference in the European Corn Borer
ORIGINAL RESEARCH ARTICLE published: 29 October 2014 ECOLOGY AND EVOLUTION doi: 10.3389/fevo.2014.00065 Shifts in sensory neuron identity parallel differences in pheromone preference in the European corn borer Fotini A. Koutroumpa 1†, Zsolt Kárpáti 1†, Christelle Monsempes 2,SharonR.Hill1, Bill S. Hansson 3, Emmanuelle Jacquin-Joly 2, Jürgen Krieger 4 and Teun Dekker 1* 1 Division of Chemical Ecology, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden 2 INRA, Institute of Ecology and Environmental Sciences iEES-Paris, Versailles, UMR 1392, Versailles, France 3 Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany 4 Institute of Physiology, University of Hohenheim, Stuttgart, Germany Edited by: Pheromone communication relies on highly specific signals sent and received between Matthieu Keller, Centre National de members of the same species. However, how pheromone preference is determined la Recherche Scientifique, France in moth olfactory circuits remains unknown. Here we describe a potential mechanism Reviewed by: that generates preference differences in Ostrinia nubilalis.InOstrinia nubilalis it was Cesar Gemeno, University of Lleida, Spain found that a single locus causes strain-specific, diametrically opposed preferences for Thomas Seth Davis, University of a 2-component pheromone blend. Previously we found that pheromone preference was Idaho, USA correlated with strain and hybrid-specific relative antennal response to both pheromone *Correspondence: components. Here we detail the underlying mechanism of this differential response, Teun Dekker, Division of Chemical through chemotopical mapping of the pheromone detection circuit in the antenna. Ecology, Department of Plant Protection Biology, Swedish We found that both strains and their hybrids have swapped the neuronal identity of University of Agricultural Sciences, the pheromone-sensitive neurons co-housed within a single sensillum.
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