Drosophila Cuticular Hydrocarbons Revisited: Mating Status Alters Cuticular Profiles

PLoS ONE, Journal Year: 2010, Volume and Issue: 5(3), P. e9607 - e9607

Published: March 8, 2010

Most living organisms use pheromones for inter-individual communication. In Drosophila melanogaster flies, several perceived either by contact/at a short distance (cuticular hydrocarbons, CHs), or at longer (cis-vaccenyl acetate, cVA), affect courtship and mating behaviours. However, it has not previously been possible to precisely identify all potential pheromonal compounds simultaneously monitor their variation on time scale. To overcome this limitation, we combined Solid Phase Micro-Extraction with gas-chromatography coupled mass-spectrometry. This allowed us (i) 59 cuticular compounds, including 17 new CHs; (ii) quantify the amount of each compound that could be detected another fly, (iii) measure these substances as function aging mating. Sex-specific appeared age, while affected in both sexes three patterns: was reciprocal two sexes, suggesting passive mechanical transfer during mating, parallel such cVA which strikingly unilateral, presumably result sexual interaction. We provide complete reassessment CHs suggest chemical conversation between male female flies is far more complex than generally accepted. conclude focusing individual will satisfactory understanding evolution communication Drosophila.

Language: Английский

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Chemical basis of nest-mate discrimination in the ant Formica exsecta

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2008, Volume and Issue: 275(1640), P. 1271 - 1278

Published: March 4, 2008

Distinguishing nest-mates from non-nest-mates underlies key animal behaviours, such as territoriality, altruism and the evolution of sociality. Despite its importance, there is very little empirical support for a mechanism in nature. Here we provide data that nest-mate recognition an ant based on colony-specific Z9-alkene signature, proving surface chemicals are indeed used was suggested 100 years ago. We investigated cuticular hydrocarbon profiles 10 Formica exsecta colonies composed almost entirely alkane component. Then showed worker aggression only elicited by part. This confirmed using synthetic blends matched to individual colony two most different chemical colonies. In both colonies, glass beads with ‘nest-mate’ alkene received reduced aggression. Finally, changing abundance single live ants shown significantly increase they all five tested. Our suggest discrimination social insects has evolved rely upon highly sensitive responses relatively few compounds.

Language: Английский

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Advances in deciphering the genetic basis of insect cuticular hydrocarbon biosynthesis and variation

Heredity, Journal Year: 2020, Volume and Issue: 126(2), P. 219 - 234

Published: Nov. 2, 2020

Abstract Cuticular hydrocarbons (CHCs) have two fundamental functions in insects. They protect terrestrial insects against desiccation and serve as signaling molecules a wide variety of chemical communication systems. It has been hypothesized that these pivotal dual traits for adaptation to both contributed the considerable evolutionary success CHCs extensively studied concerning their variation, behavioral impact, physiological properties, compositions. However, our understanding genetic underpinnings CHC biosynthesis remained limited mostly biased towards one particular model organism ( Drosophila ). This rather narrow focus hampered establishment comprehensive view genetics across wider phylogenetic boundaries. review attempts integrate new insights recent knowledge gained biosynthesis, which is just beginning incorporate work on more insect taxa beyond . intended provide stepping stone general mechanisms gave rise astonishing diversity compounds different taxa. Further research this field encouraged aim at better discriminating conserved versus taxon-specific elements underlying variation. will be instrumental greatly expanding origins variation genes governing crucial phenotypic impacted behavior, physiology, evolution.

Language: Английский

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Desiccation resistance differences in Drosophila species can be largely explained by variations in cuticular hydrocarbons

eLife, Journal Year: 2022, Volume and Issue: 11

Published: Dec. 6, 2022

Maintaining water balance is a universal challenge for organisms living in terrestrial environments, especially insects, which have essential roles our ecosystem. Although the high surface area to volume ratio insects makes them vulnerable loss, evolved different levels of desiccation resistance adapt diverse environments. To withstand desiccation, use lipid layer called cuticular hydrocarbons (CHCs) reduce evaporation from body surface. It has long been hypothesized that water-proofing capability this CHC layer, can confer resistance, depends on its chemical composition. However, it unknown components are important contributors and how these determine differences resistance. In study, we used machine-learning algorithms, correlation analyses, synthetic CHCs investigate affect 50 Drosophila related species. We showed across species be largely explained by variation particular, length subset CHCs, methyl-branched (mbCHCs), key determinant There also significant between evolution longer mbCHCs higher Given almost ubiquitous suggest evolutionary changes insect general mechanism adaptation changing

Language: Английский

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The role of ATP-binding cassette transporters in arthropod pesticide toxicity and resistance

Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: 63, P. 101200 - 101200

Published: April 17, 2024

Language: Английский

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The diverse roles of insulin signaling in insect behavior

Frontiers in Insect Science, Journal Year: 2024, Volume and Issue: 4

Published: April 4, 2024

In insects and other animals, nutrition-mediated behaviors are modulated by communication between the brain peripheral systems, a process that relies heavily on insulin/insulin-like growth factor signaling pathway (IIS). Previous studies have focused mechanistic physiological functions of insulin-like peptides (ILPs) in critical developmental adult milestones like pupation or vitellogenesis. Less work has detailed mechanisms connecting ILPs to nutrient-mediated related survival reproductive success. Here we briefly review range linked IIS insects, from conserved regulation feeding behavior evolutionarily derived polyphenisms. Where possible, incorporate information Drosophila melanogaster model species describe molecular neural connect nutritional status behavioral expression via IIS. We identify knowledge gaps which include diverse functional roles ILPs, how modulate function across lifespan, lack research broad taxa. Addressing these would enable better understanding evolution this widely deployed tool kit pathway.

Language: Английский

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The Scent of the Waggle Dance

PLoS Biology, Journal Year: 2007, Volume and Issue: 5(9), P. e228 - e228

Published: Aug. 16, 2007

The waggle dance of honey bee (Apis mellifera L.) foragers communicates to nest mates the location a profitable food source. We used solid-phase microextraction and gas chromatography coupled with mass spectrometry show that waggle-dancing bees produce release two alkanes, tricosane pentacosane, alkenes, Z-(9)-tricosene Z-(9)-pentacosene, onto their abdomens into air. Nondancing returning from same source these substances in only minute quantities. Injection scent significantly affects worker behavior by increasing number exit hive. results this study suggest compounds are semiochemicals involved recruitment. By showing dancers behaviorally active chemicals, reveals new dimension organization foraging.

Language: Английский

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Volatile Drosophila Cuticular Pheromones Are Affected by Social but Not Sexual Experience

PLoS ONE, Journal Year: 2012, Volume and Issue: 7(7), P. e40396 - e40396

Published: July 11, 2012

Recognition of conspecifics and mates is based on a variety sensory cues that are specific to the species, sex social status each individual. The courtship mating activity Drosophila melanogaster flies thought depend olfactory perception male-specific volatile pheromone, cis-vaccenyl acetate (cVA), gustatory cuticular hydrocarbons (CHs), some which sexually dimorphic. Using two complementary sampling methods (headspace Solid Phase Micro-Extraction [SPME] solvent extraction) coupled with GC-MS analysis, we measured dispersion pheromonal CHs in air substrate around fly. We also followed variations were induced by sexual interactions. found all present fly body deposited as thin layer substrate, whereas only few these molecules detected air. Moreover, experience during early adult development mature strongly affected male but not cVA, interaction had moderate influence dispersed CHs. Our study suggests that, addition their role contact cues, can behavior at distance volatile, participate three-step recognition chemical identity insects.

Language: Английский

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Pathogenic fungus uses volatiles to entice male flies into fatal matings with infected female cadavers

The ISME Journal, Journal Year: 2022, Volume and Issue: 16(10), P. 2388 - 2397

Published: July 13, 2022

Language: Английский

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Seasonal changes in photoperiod and temperature lead to changes in cuticular hydrocarbon profiles and affect mating success in Drosophila suzukii

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: April 6, 2023

Abstract Seasonal plasticity in insects is often triggered by temperature and photoperiod changes. When climatic conditions become sub-optimal, might undergo reproductive diapause, a form of seasonal delaying the development organs activities. During cuticular hydrocarbon (CHC) profile, which covers insect body surface, also change to protect from desiccation cold temperature. However, CHCs are important cues signals for mate recognition changes CHC composition affect recognition. In present study, we investigated profile mating success Drosophila suzukii 1- 5-day-old males females summer winter morphs. compositions differed with age no significant differences were found between sexes same morph. The results behavioral assays show that morph pairs start earlier their life, have shorter duration, more offspring compared pairs. We hypothesize profiles morphs adapted survive conditions, potentially at cost reduced cues.

Language: Английский

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