« Previous AbstractCoding and interaction of sex pheromone and plant volatile signals in the antennal lobe of the codling moth Cydia pomonella    Next AbstractAroma profiling of an aerated fermentation of natural grape must with selected yeast strains at pilot scale »

Proc Biol Sci

Title:		Neural coding merges sex and habitat chemosensory signals in an insect herbivore
Author(s):		Trona F; Anfora G; Balkenius A; Bengtsson M; Tasin M; Knight A; Janz N; Witzgall P; Ignell R;
Address:		"Division of Chemical Ecology, Department of Plant Protection Biology, SLU, PO Box 102, 23053 Alnarp, Sweden. federica.trona@slu.se"
Journal Title:		Proc Biol Sci
Year:		2013
Volume:		20130417
Issue:		1760
Page Number:		20130267 -
DOI:		10.1098/rspb.2013.0267
ISSN/ISBN:		1471-2954 (Electronic) 0962-8452 (Print) 0962-8452 (Linking)
Abstract:		"Understanding the processing of odour mixtures is a focus in olfaction research. Through a neuroethological approach, we demonstrate that different odour types, sex and habitat cues are coded together in an insect herbivore. Stronger flight attraction of codling moth males, Cydia pomonella, to blends of female sex pheromone and plant odour, compared with single compounds, was corroborated by functional imaging of the olfactory centres in the insect brain, the antennal lobes (ALs). The macroglomerular complex (MGC) in the AL, which is dedicated to pheromone perception, showed an enhanced response to blends of pheromone and plant signals, whereas the response in glomeruli surrounding the MGC was suppressed. Intracellular recordings from AL projection neurons that transmit odour information to higher brain centres, confirmed this synergistic interaction in the MGC. These findings underscore that, in nature, sex pheromone and plant odours are perceived as an ensemble. That mating and habitat cues are coded as blends in the MGC of the AL highlights the dual role of plant signals in habitat selection and in premating sexual communication. It suggests that the MGC is a common target for sexual and natural selection in moths, facilitating ecological speciation"
Keywords:		"Action Potentials/physiology Animals Brain/*physiology *Cues *Ecosystem Female Male Microscopy, Confocal Moths/*physiology Sex Factors Sexual Behavior, Animal/*physiology Signal Transduction/physiology Smell/*physiology Synaptic Transmission/physiology;"
Notes:		"MedlineTrona, Federica Anfora, Gianfranco Balkenius, Anna Bengtsson, Marie Tasin, Marco Knight, Alan Janz, Niklas Witzgall, Peter Ignell, Rickard eng Research Support, Non-U.S. Gov't England 2013/04/19 Proc Biol Sci. 2013 Apr 17; 280(1760):20130267. doi: 10.1098/rspb.2013.0267. Print 2013 Jun 7"