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Differences in sex pheromone communication systems of closely related species : Spodoptera latifascia (Walker) and S. descoinsi Lalanne-Cassou and Silvain (Lepidoptera : Noctuidae) Inra
Monti, L.; Lalanne-Cassou, B.; Lucas, P.; Malosse, C.; Silvain, J.F..
S. latifascia and S. descoinsi are closely related species that occur sympatrically over limited areas in French Guiana. We examined allopatric populations, S. latifascia originating from Barbados and S. descoinsi from French Guiana. Studies on nocturnal activity cycles showed temporal partitioning of female calling behavior, male sexual activity, and mating behavior.S. descoinsi were sexually active in the first half of the scotophase whereas S. latifascia were sexually active in the second half. Seven compounds (Z9–14: Ac,Z9,E12–14: Ac,Z11–16: Ac,E9,E12–14: Ac,Z9–14: Ald,Z9,E11–14: Ac andZ11–14: Ac) were identified in females of both S. latifascia and S. descoinsi extracts.Z9–14: Ac was a main pheromone component for the two species. The major difference...
Tipo: Journal Article Palavras-chave: SPODOPTERA; LEPIDOPTERE; NOCTUIDAE; ACTIVITE SEXUELLE; ATTRACTION SEXUELLE; ISOLATION; PHEROMONE SEXUELLE; RYTHME D'ACTIVITE; ELECTROPHYSIOLOGIE; REPRODUCTION LEPIDOPTERA; NOCTUIDAE; SPODOPTERA LATIFASCIA; SPODOPTERA DESCOINSI; PHEROMONES; (Z)-9-TETRADECENYL ACETATE; (Z E)-9 12-TETRADECADIENYL ACETATE; SEXUAL ACTIVITY RHYTHMS; CROSS-ATTRACTION; ELECTROPHYSIOLOGY; REPRODUCTIVE ISOLATION.
Ano: 1995 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9600002138054208&uri=/notices/prodinra1/2010/11/
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Haldane's rule in Carabus : interspecific mating between C. punctatoauratus and C. splendens using experimental tests and molecular markers Inra
Brouat, C.; Meusnier, S.; Veyrier, R.; Streiff, R..
Carabus splendens Olivier and Carabus punctatoauratus Germar (Coleoptera: Carabidae: Carabini) are ground beetles found in sympatry in forests in the eastern Pyrénées. We investigated potential interspecific mating using crossing experiments under controlled laboratory conditions and paternity analyses based on microsatellite markers. We show that under laboratory conditions, interspecific mating produces viable and fertile offspring. Although hybrid males were sterile, females were fertile and thus reproductive isolation between the two species is far from complete. We discuss the results in relation to species integrity due to pre- or post-zygotic barriers, and compare them to a previous study quantifying hybridization between the two species in natural...
Tipo: Journal Article Palavras-chave: ACCOUPLEMENT INTERSPECIFIQUE; ISOLEMENT HYBRID; MATING SUCCESS; CARABIDS; BEETLES; CROSS-EXPERIMENT; REPRODUCTIVE ISOLATION; MICROSATELLITE LOCUS.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20085a2c7a4e&uri=/notices/prodinra1/2009/01/
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Variability in pheromone communication among different haplotype populations of Busseola fusca Inra
Felix, A.E.; Genestier, G.; Malosse, C.; Calatayud, P.-A.; Le Rü, B.; Silvain, J.-F.; Frerot, B..
The relationship between pheromone composition and mitochondrial haplotype clades was investigated by coupling DNA analyses with pheromone identification and male mate searching behavior among different geographic populations of Busseola fusca. The within-population variations in pheromone blend were as great as those observed between geographic populations, suggesting that the female sex pheromone blend was not the basis of reproductive isolation between the geographic clades. Furthermore, while data from wind tunnel experiments demonstrated that most of the tested males were sensitive to small variations in pheromone mixture, there was considerable within-population variability in the observed response. The study identified a new pheromone component,...
Tipo: Journal Article Palavras-chave: PHEROMONE; INSECTE; ADN; TECHNIQUE ANALYTIQUE; SPECTROMETRIE DE MASSE; CHROMATOGRAPHIE GAZEUSE; MITOCHONDRIE; INSECTE NUISIBLE; COMPORTEMENT ANIMAL LEPIDOPTERA; NOCTUIDAE; SPME; GC-MS; SYNTHETIC PHEROMONE; WIND TUNNEL; FIELD TRAPPING; REPRODUCTIVE ISOLATION; CLADE.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010b0720796&uri=/notices/prodinra1/2010/09/
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