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Role of the ejaculatory bulb in biosynthesis of the male pheromone cis-vaccenyl acetate in Drosophila melanogaster

Integrative Zoology 2007年第2期2卷 89-99页

作者： Gaëlle GUIRAUDIE-CAPRAZ Dang Ba PHO jean-marc jallon UnitéMixte de Recherche Universitéde Paris-Sud et Centre National de la Recherche Scientifique n°8620 University of Paris SudOrsayFrance

In Drosophila melanogaster,the male ejaculatory bulb is the site of synthesis of a male-specific pheromone,cis-vaccenyl acetate,which functions as both an attractant and an *** long monounsaturated acetate is structurally similar to a number of shorter gland-synthesized moth *** cell monolayer that forms the Drosophila male ejaculatory bulb wall is responsible for the production and secretion of cis-vaccenyl acetate into the seminal *** dissected bulbs were incubated with sodium[14-C]-acetate(or deuterated acetate),a labeled acetate ester was *** labeled acetate ester co-migrated with cis-vaccenyl acetate in thin layer *** of the abdomens of males from which the ejaculatory bulbs had been removed,or the abdomens of females,with radiolabeled acetate did not yield any acetate ester,but did yield other lipid products,including *** the isolated labeled acetate ester was hydrolyzed,no radioactive vaccenol was *** strongly suggests that the acetyl group is incorporated via a transacetylation reaction,but that the vaccenyl moiety is not synthetized in the *** transacetylation enzyme activity was localized in the microsomal subfraction of the bulb homogenate,and its affinity for vaccenol was not very different from that reported for monounsaturated alcohol substrates in moths.

关键词： cis-vaccenyl acetate Drosophila melanogaster ejaculatory bulb male pheromone microsomes transacetylation

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Temperature as a major selection pressure on the evolution of Drosophila populations

Temperature as a major selection pressure on the evolution o...

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Darwin 200 & 3rd International Symposium of Integrative Zoology

作者： jean-marc jallon University of Paris South Science Faculty of Orsay

＜正＞According to the neo-Darwinian theory,evolution results from genome variations and selection of certain genotypes better adapted to environmental *** Drosophila group of species is a good model to try to characterize specific selection pressures and their effect on certain genes or groups of genes which are involved in

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The XX International Congress of Zoology, 26-29 August 2008, Paris

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Integrative Zoology 2009年第3期4卷 257-257页

作者： jean-marc jallon Rene LAFONT jean-Loup dHONDT jean DEUTSCH University of Paris-Sud 11 OrsayFrance University Pierre and Marie Curie 6 ParisFrance and National Museum of Natural History ParisFrance

International Congresses of Zoology(ICZ)provide an opportunity for zoologists working in different fields of zoology to meet and exchange their research and *** is also a venue where topical issues facing the science of zoology,such as the biodiversity crisis,the teaching of zoology and ethics can be *** Congresses were resurrected in 2000 in Athens and held again in Beijing in *** an age of increasing reductionism and complex information management,having a general meeting of zoologists to discuss the whole animal is of vital service to our science.

关键词： biodiversity Congress teaching

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Ontogeny of Drosophila melanogaster female sex-appeal and cuticular hydrocarbons

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Integrative Zoology 2010年第3期5卷 272-282页

作者： Marisa ARIENTI Claude ANTONY Claude WICKER-THOMAS jean-Paul DELBECQUE jean-marc jallon University of Paris South 11 Center of Neurosciences of Paris SouthOrsayFrance Department of Biology Autonoma Metropolitan University-XochimilcoMexico DFMexico EMBL HeidelbergGermany LEGS CNRSGif sur YvetteFrance University of Bordeaux 1 Center of Integrative and Cognitive NeurosciencesTalenceFrance

The chemical communication system in Drosophila melanogaster Meigen,1830 plays a major role in courtship and consists of the male-specific cis-Vaccenyl acetate and sex-specific contact pheromones,cuticular hydrocarbons(CHC),which build up during ontogeny(first 4 days).They replace longer CHCs,common to both sexes and present only after the imaginal eclosion.A detailed quantitative description of the evolution of cuticular unsaturated hydrocarbons with age is presented here for males and females of different *** strains,which have been bred in well controlled *** appear in both sexes at around 12 h,before female *** present paper argues that this is likely linked to the switching on of a new set of ***,which is more abundant in females than in males during this critical period,might control this *** behavioral studies show that whereas female of all ages trigger early mature male courtship steps like wing vibration,only females older than 1 day trigger late courtship steps like attempted *** supports the hypothesis that late male courtship steps might be triggered by the CHCs,which build up after this age,especially female-specific(Z,Z)-7,11-and(Z,Z)-5,9-dienes.

关键词： contact pheromones Drosophila melanogaster ecdysone control ontogeny sex differences

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What is an ant colony odour, how it is produced and modulates behavior changes

What is an ant colony odour, how it is produced and modulate...

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Biological Consequences of Global Change 4th International Symposium of Integrative Zoology

作者： jean-marc jallon Christophe LUCAS Dang Bha PHO Dominique FRESNEAU Marla SOKOLOWSKI CNPS Universite de Paris Sud 11Orsay CedexFrance Department of Ecology and Evolution Universite de LausanneLausanneFrance LEEC Universite de Paris Nord 13ParisFrance Department of Biology University of TorontoCanada

＜正＞Cuticular hydrocarbons（HC）play a number of roles in insects from water-proofing,thermal insulation,protection from predators,to chemical communication,reproduction isolation,and kin and species recognition.A growing body of experimental evidence suggests that insect HC play an important role in social insect nestmate *** detailed analysis of cuticular hydrocarbon composition has

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