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Registros recuperados: 6
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Characterization and PCR multiplexing of polymorphic microsatellite loci for the locust Locusta migratoria Inra
Chapuis, M.-P.; Loiseau, A.; Michalakis, Y.; Lecoq, M..
Because of the scarcity of polymorphic genetic markers available in locust species, only a few population genetics studies have been carried out on this taxon. We isolated and characterized 11 polymorphic microsatellite loci in the pest locust Locusta migratoria capito, and described experimental conditions for polymerase chain reaction (PCR) multiplexing and simultaneously genotyping these loci. The number of alleles per locus ranged from six to 25, and the expected heterozygosity ranged from 0.431 to 0.957. Results of cross-taxon amplification tests are reported in six other Locusta migratoria subspecies, six species of the Oedipodinae subfamily and two other pest locust species
Tipo: Journal Article Palavras-chave: CRIQUET MIGRATEUR; POLYMORPHISME; MARQUEUR GENETIQUE LOCUST; LOCUSTA MIGRATORIA; MICROSATELLITES; NULL ALLELES; ORTHOPTERA; PEST.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200769fce925&uri=/notices/prodinra1/2007/08/
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Characterization and PCR multiplexing of polymorphic microsatellite loci for the locust Locusta migratoria (vol 5, pg 554, 2005) - corrigendum Inra
Chapuis, M.P.; Loiseau, A.; Michalakis, Y.; Lecoq, M.; Estoup, A..
Because of the scarcity of polymorphic genetic markers available in locust species, only a few population genetics studies have been carried out on this taxon. We isolated and characterized 11 polymorphic microsatellite loci in the pest locust Locusta migratoria capito, and described experimental conditions for polymerase chain reaction (PCR) multiplexing and simultaneously genotyping these loci. The number of alleles per locus ranged from six to 25, and the expected heterozygosity ranged from 0.431 to 0.957. Results of cross-taxon amplification tests are reported in six other Locusta migratoria subspecies, six species of the Oedipodinae subfamily and two other pest locust species
Tipo: Journal Article Palavras-chave: CRIQUET MIGRATEUR; POLYMORPHISME; MARQUEUR GENETIQUE LOCUST; LOCUSTA MIGRATORIA; MICROSATELLITES; NULL ALLELES; ORTHOPTERA; PEST.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011bec98eb7&uri=/notices/prodinra1/2011/06/
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Do outbreaks affect genetic population structure? A worldwide survey in Locusta migratoria, a pest of plagued by microsatellite null alleles Inra
Chapuis, M.P.; Lecoq, M.; Michalakis, A.; Loiseau, A.; Sword, A.; Piry, S.; Estoup, A..
An understanding of the role of factors intrinsic to a species’ life history in structuring contemporary genetic variation is a fundamental, but understudied, aspect of evolutionary biology. Here, we assessed the influence of the propensity to outbreak in shaping worldwide genetic variation in Locusta migratoria, a cosmopolitan pest well known for its expression of density-dependent phase polyphenism. We scored 14 microsatellites in nine subspecies from 25 populations distributed over most of the species’ range in regions that vary in the historical frequency and extent of their outbreaks. We rejected the hypothesis that L. migratoria consists of two genetically distinct clusters adapted to habitats either rarely (nonoutbreaking) or cyclically...
Tipo: Journal Article Palavras-chave: CRIQUET MIGRATEUR COMPUTER SIMULATION; LIFE-HISTORY EVOLUTION; LOCUST; PHASE POLYPHENISM; SPATIAL DYNAMICS; SUBSPECIES.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201030b8d97e&uri=/notices/prodinra1/2010/12/
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Genetic variation for parental effects on the propensity to gregarise in Locusta migratoria Inra
Chapuis, M.P.; Estoup, A.; Augé-Sabatier, A.; Foucart, A.; Lecoq, M.; Michalakis, Y..
Background: Environmental parental effects can have important ecological and evolutionary consequences, yet little is known about genetic variation among populations in the plastic responses of offspring phenotypes to parental environmental conditions. This type of variation may lead to rapid phenotypic divergence among populations and facilitate speciation. With respect to density-dependent phenotypic plasticity, locust species (Orthoptera: family Acrididae), exhibit spectacular developmental and behavioural shifts in response to population density, called phase change. Given the significance of phase change in locust outbreaks and control, its triggering processes have been widely investigated. Whereas crowding within the lifetime of both offspring and...
Tipo: Journal Article Palavras-chave: CRIQUET MIGRATEUR.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010c566ffaa&uri=/notices/prodinra1/2010/12/
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Outbreaks, gene flow and effective population size in the migratory locust Locusta migratoria: a regional scale comparative survey Inra
Chapuis, M.P.; Loiseau, A.; Michalakis, Y.; Lecoq, M.; Franc, A.; Estoup, A..
The potential effect of population outbreaks on within and between genetic variation of populations in pest species has rarely been assessed. In this study, we compare patterns of genetic variation in different sets of historically frequently outbreaking and rarely outbreaking populations of an agricultural pest of major importance, the migratory locust, Locusta migratoria. We analyse genetic variation within and between 24 populations at 14 microsatellites in Western Europe, where only ancient and low-intensity outbreaks have been reported (non-outbreaking populations), and in Madagascar and Northern China, where frequent and intense outbreak events have been recorded over the last century (outbreaking populations). Our comparative survey shows that (i)...
Tipo: Journal Article Palavras-chave: CRIQUET MIGRATEUR; LOCUSTA MIGRATORIA.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010d7360fb0&uri=/notices/prodinra1/2010/12/
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Parental crowding influences life-history traits in Locusta migratoria females Inra
Chapuis, M.P.; Crespin, L.; Estoup, A.; Augé-Sabatier, A.; Foucart, A.; Lecoq, M.; Michalakis, Y..
Parental environments could play an important role in controlling insect outbreaks, provided they influence changes in physiological, developmental or behavioural life-history traits related to fluctuations in population density. However, the potential implication of parental influence in density-related changes in life-history traits remains unclear in many insects that exhibit fluctuating population dynamics, particularly locusts. In this study, we report a laboratory experiment, which enabled us to characterize the life-history trait modifications induced by parental crowding of female individuals from a frequently outbreaking population of Locusta migratoria (Linnaeus) (Orthoptera: Acrididae). We found that a rearing history of crowding led to reduced...
Tipo: Journal Article Palavras-chave: CRIQUET CONTROLLED LABORATORY EXPERIMENT; CROWDING; DENSITY-DEPENDENT POLYPHENISM; LIFE-HISTORY; LOCUST; OFFSPRING QUALITY; PARENTAL EFFECTS; OUTBREAK; PEST; REPRODUCTIVE TIMING.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20102d27fcfe&uri=/notices/prodinra1/2010/12/
Registros recuperados: 6
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