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A Drosophila female pheromone elicits species-specific long-range attraction via an olfactory channel with dual specificity for sex and food

Lebreton, Sebastien and Borrero-Echeverry, Felipe and Gonzalez, Francisco and Solum, Marit and Wallin, Erika and Hedenström, Erik and Hansson, Bill and Gustavsson, Anna-Lena and Bengtsson, Marie and Birgersson, Göran and Walker, William and Dweck, Hany and Becher, Paul G and Witzgall, Peter (2017). A Drosophila female pheromone elicits species-specific long-range attraction via an olfactory channel with dual specificity for sex and food. BMC Biology. 15:88, 1-14
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Official URL: http://dx.doi.org/10.1186/s12915-017-0427-x

Abstract

Background: Mate finding and recognition in animals evolves during niche adaptation and involves social signals and habitat cues. Drosophila melanogaster and related species are known to be attracted to fermenting fruit for feeding and egg-laying, which poses the question of whether species-specific fly odours contribute to long-range premating communication.Results: We have discovered an olfactory channel in D. melanogaster with a dual affinity to sex and food odorants. Female flies release a pheromone, (Z)-4-undecenal (Z4-11Al), that elicits flight attraction in both sexes. Its biosynthetic precursor is the cuticular hydrocarbon (Z, Z)-7,11-heptacosadiene (7,11-HD), which is known to afford reproductive isolation between the sibling species D. melanogaster and D. simulans during courtship. Twin olfactory receptors, Or69aB and Or69aA, are tuned to Z4-11Al and food odorants, respectively. They are co-expressed in the same olfactory sensory neurons, and feed into a neural circuit mediating species-specific, long-range communication; however, the close relative D. simulans, which shares food resources with D. melanogaster, does not respond to Z4-11Al.Conclusion: The Or69aA and Or69aB isoforms have adopted dual olfactory traits. The underlying gene yields a collaboration between natural and sexual selection, which has the potential to drive speciation.

Authors/Creators:Lebreton, Sebastien and Borrero-Echeverry, Felipe and Gonzalez, Francisco and Solum, Marit and Wallin, Erika and Hedenström, Erik and Hansson, Bill and Gustavsson, Anna-Lena and Bengtsson, Marie and Birgersson, Göran and Walker, William and Dweck, Hany and Becher, Paul G and Witzgall, Peter
Title:A Drosophila female pheromone elicits species-specific long-range attraction via an olfactory channel with dual specificity for sex and food
Series/Journal:BMC Biology (1741-7007)
Year of publishing :2017
Volume:15
Number:88
Page range:1-14
Number of Pages:14
Publisher:BioMed Central
ISSN:1741-7007
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:X Agricola extesions > X30 Life sciences
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Biochemistry and Molecular Biology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Agrovoc terms:Drosophila, pheromones, olfaction
Keywords:Olfaction, Sexual communication, Chemical ecology, Reproductive isolation
URN:NBN:urn:nbn:se:slu:epsilon-e-4599
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4599
Additional ID:
Type of IDID
UNSPECIFIED000412075400001
DOIUNSPECIFIED
ID Code:14870
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:09 Jan 2018 12:37
Metadata Last Modified:11 Jan 2018 11:39

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