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Registros recuperados: 18
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A first step for modelling pollen dispersal at the landscape level: determining the shape of dispersal functions at long-distance. The case of oilseed rape Inra
Devaux, C.; Klein, E.K.; Lavigne, C..
Tipo: Conference Paper Palavras-chave: DISPERSION DU POLLEN; PLANTE OLEAGINEUSE; MODELISATION; DISSEMINATION; POLLUTION GENETIQUE POLLEN DISPERSAL; GENE FLOW; MODELLING; TRANSGEN POLLUTION.
Ano: 2003 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20076db224fc&uri=/notices/prodinra1/2007/06/
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Bridging the gap between ecophysiological and genetic knowledge to assess the adaptive potential of European beech Inra
Kramer, K.; Buiteveld, J.; Forstreuter, M.; Geburek, T.; Leonardi, S.; Menozzi, P.; Povillon, F.; Schelhaas, M.J.; Teissier du Cros, E.; Vendramin, G.G.; van der Werf, D.C..
In this study we aimed to combine knowledge of the ecophysiology and genetics of European beech to assess the potential of this species to adapt to environmental change. Therefore, we performed field and experimental studies on the genetic and ecophysiological functioning of beech. This information was integrated through a coupled genetic–ecophysiological model for individual trees that was parameterized with information derived from our own studies or from the literature. Using the model, we evaluated the adaptive response of beech stands in two ways: firstly, through sensitivity analyses (of initial genetic diversity, pollen dispersal distance, heritability of selected phenotypic traits, and forest management, representing disturbances) and secondly,...
Tipo: Journal Article Palavras-chave: ADAPTIVE POTENTIAL; ECOPHYSIOLOGY; GENETICS; FOREST MANAGEMENT; FORGEM; GENE FLOW; MODELISATION; CLIMATE CHANGE; ECOLOGICAL DIVERSITY; POLLEN DISPERSAL.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008e670cd7c&uri=/notices/prodinra1/2008/08/
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Changes in mating system and social structure of the ant Petalomyrmex phylax are associated with range expansion in Cameroon Inra
Dalecky, A.; Debout, G.; Estoup, A.; McKey, D.B.; Kjellberg, F..
Past climate shifts have led to major oscillations in species distributions. Hence historical contingencies and selective processes occurring during such phases may be determinants for understanding the forces that have shaped extant phenotypes. In the plant-ant Petalomyrmex phylax (Formicinae), we observed spatial variation in number of queens in mature colonies, from several queens (high polygyny) in the median part of its distribution to a moderate number of queens (weak polygyny) or even only a single queen (monogyny) in the southwestern most populations. This variation did not correlate with indicators of variation in current nest site availability and colony turnover, the supposedly determinant selective forces acting on gyny in ants. We show here...
Tipo: Journal Article Palavras-chave: FOURMI; INSECTE SOCIAL DNA MICROSATELLITES; FORMICINAE; GENE FLOW; INBREEDING; MONOGYNY; POLYGYNY; RANGE EXPANSION.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200856dd4d6&uri=/notices/prodinra1/2008/06/
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Contemporary seed and pollen dispersal abilities of silver fir (Abies alba Mill.)at range margins Inra
Oddou-Muratorio, S.; Amm, A.; Burczyk, J.; Chybicki, I.J.; Lewandowski, A.; Litkowiec, M.; Pichot, C.; Klein, E..
Tipo: Conference Paper Palavras-chave: GENE FLOW; MICROSATELLITE MARKER; GENETIC DIVERSITY; CLIMATE CHANGE; PARENTAGE ANALYSIS; POLLEN DISPERSAL; SEED DISPERSAL; SELFING.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201087f4c0da&uri=/notices/prodinra1/2010/06/
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Effect of cropping systems on species dynamics and gene flow at the landscape level. A modelling approach Inra
Colbach, N..
Tipo: Conference Paper Palavras-chave: CROPPING SYSTEM; GENE FLOW; GMO; LANDSCAPE; MODEL; POPULATION DYNAMICS.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200868dc4e79&uri=/notices/prodinra1/2011/06/
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Effect of the interactions between gene flow and selection on local adaptation: a case study in common beech (Fagus sylvatica L.) Inra
Bontemps, A.; Lefèvre, F.; Oddou-Muratorio, S..
Tipo: Conference Paper Palavras-chave: GENE FLOW; LOCAL ADAPTATION; CLIMATE CHANGE; MATING MODEL; SELECTION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20108640ebca&uri=/notices/prodinra1/2010/06/
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Genetic structure and functioning of alien ship rat populations from a Corsican micro-insular complex Inra
Abdelkrim, J.; Pascal, M.; Samadi, S..
The detrimental effects of the introduced ship rat on bird species on the Lavezzi Mediterranean archipelago has led to the decision to eradicate the rodent from the main island, Lavezzu (73 ha), as well as from several neighbouring islets. A genetic study using eight microsatellite markers has revealed some of the dynamics of this rat population. First, it has been shown that the rat population was genetically stable (no departure from Hardy-Weinberg equilibrium and no linkage disequilibrium) and as suggested by paleontological data, established for a long time. This information is encouraging in term of viability of the eradication campaign in the long term, even if rare immigration events cannot be excluded. Second, this study shows that rats are likely...
Tipo: Journal Article Palavras-chave: INVASION BIOLOGIQUE; ESPECE INVASIVE; ERADICATION; POPULATION ANIMALE; MICROSATELLITE; ILE; MILIEU INSULAIRE SHIP RAT; BIOLOGICAL INVASION; ISLANDS; GENE FLOW; MICROSATELLITES.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20093edb7feb&uri=/notices/prodinra1/2010/11/
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Genetic structure and gene flow in French populations of two Ostrinia taxa: host races or sibling species? Inra
Malausa, T.; Dalecky, A.; Ponsard, S.; Audiot, P.; Streiff, R.; Chaval, Y.; Bourguet, D..
Most models of ecological speciation concern phytophagous insects in which speciation is thought to be driven by host shifts and subsequent adaptations of populations. Despite the ever-increasing number of studies, the current evolutionary status of most models remains incompletely resolved, as estimates of gene flow between taxa remain extremely rare. We studied the population genetics of two taxa of the Ostrinia genus — one feeding mainly on maize and the other on mugwort and hop — occurring in sympatry throughout France. The actual level of divergence of these taxa was unknown because the genetic structure of populations had been investigated over a limited geographical area and the magnitude of gene flow between populations had not been estimated. We...
Tipo: Journal Article Palavras-chave: PYRALE DU MAIS; APPROCHE BAYESIENNE; SPECIATION BAYESIAN APPROACHES; ECOLOGICAL SPECIATION; EUROPEAN CORN BORER; GENE FLOW; HOST RACE; HYBRIDIZATION; MICROSATELLITE; SYMPATRIC SPECIATION.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008363d5674&uri=/notices/prodinra1/2008/05/
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Genetic variation, mating patterns and gene flow in a Pinus pinaster Aiton clonal seed orchard Inra
Fernandes, L.; Rocheta, M.; Cordeiro, J.; Pereira, S.; Gerber, S.; Oliveira, M.M.; Ribeiro, M.M..
L'apparentement entre parents, la variation de fertilité entre clones et la pollution pollinique font dévier le gain génétique réalisé et la diversité génétique des valeurs attendues en verger à graines de clones à pollinisation libre, en particulier pour une espèce à pollinisation anémophile comme Pinus pinaster Aiton.Ce travail étudie la variation génétique, le système de reproduction et la contamination du pollen d'un verger à graines de clones (VGC) de P. pinaster, en génotypant les 60 clones du VGC et les graines récoltées sur 21 arbres-mères pour trois marqueurs microsatellites nucléaires.La diversité attendue s'est révélée similaire mais l'hétérozygotie observée a diminué de 20 % chez les descendants par rapport aux parents. Le taux...
Tipo: Journal Article Palavras-chave: VARIATION GENETIQUE; SYSTEME DE REPRODUCTION; FLUX DE GENES; MICROSATELLITES; PIN MARITIME; VERGER A GRAINES DE CLONES; MARQUEUR GENETIC VARIATION; MATING SYSTEM; GENE FLOW; SIMPLE SEQUENCE REPEATS; MARITIME PINE.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200892079bd0&uri=/notices/prodinra1/2009/11/
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Influence of climate change on the natural distribution of tree species Inra
Fady, B..
Tipo: Meeting Paper Palavras-chave: CLIMATE CHANGE; FOREST ECOSYSTEM; ACCLIMATIZATION; SEED DISPERSAL; SPATIAL DISTRIBUTION; GENETIC RESOURCES; GENE FLOW.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008240b3608&uri=/notices/prodinra1/2008/09/
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Interaction between environmental heterogeneity and gene flow in the adaptive trajectory of a continuous tree population. Poster Inra
Alleaume-Benharira, M.; Oddou-Muratorio, S.; Lefèvre, F..
Tipo: Meeting Paper Palavras-chave: GENETIC MARKER; MEDITERRANEAN CLIMATE; GENE FLOW.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201083b8b835&uri=/notices/prodinra1/2010/06/
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Introduced forest tree species: some genetic and ecological consequences Inra
Fady, B..
Tipo: Conference Paper Palavras-chave: DERIVE GENETIQUE GENETIC RESOURCE; HYBRIDIZATION; SUSTAINABLE MANAGEMENT; GENE FLOW.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20082265db0b&uri=/notices/prodinra1/2008/06/
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Local adaptation occurs along altitudinal gradient despite the existence of gene flow in the alpine plant species Festuca eskia Inra
Turpin, H.; Hazard, L..
1. Alpine plant species are particularly vulnerable to climate change. Therefore, estimating the adaptive potential of alpine species is of vital importance for determining their future viability. In alpine plants, adaptive potential depends on (i) altitudinal genetic differentiation among populations, combined with gene flow along an altitudinal gradient; (ii) phenotypic plasticity for the traits under selection and (iii) co-gradient variation between genetic and environmental influences on these traits.2. The adaptive potential of Festuca eskia Ramond (Poaceae), a perennial alpine grass common in the Pyrenean Mountains, was examined in this study. A reciprocal transplant experiment involving 180 individuals along three altitudinal gradients (from 1500 to...
Tipo: Journal Article Palavras-chave: ALTITUDINAL GRADIENT; CLIMATE CHANGE; CO-GRADIENT VARIATION; GENE FLOW; LOCAL ADAPTATION; PHENOTYPIC PLASTICITY; RECOPROCAL TRANSPLANTATION.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200921ab31f8&uri=/notices/prodinra1/2010/06/
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Phylogeography of north african atlas cedar (cedrus atlantica, pinaceae): combined molecular and fossil data reveal a complex quaternary history Inra
Terrab, A.; Hampe, A.; Lepais, O.; Talavera, S.; Vela, E.; Stuessy, T. F..
Northwest Africa is a major hotspot of plant biodiversity, but very little is known about the Quaternary range dynamics of plant species in this region. Here we investigate the range-wide population structure and phylogeography of Atlas cedar (Cedrus atlantica), an emblematic forest tree endemic to Morocco and Algeria. We genotyped 261 individuals from 11 populations using AFLP markers. Data were analyzed using both conventional FST-based techniques and Bayesian clustering. Overall population differentiation was high (FST = 0.25). Two major groups of populations were identified, one distributed through the Rif and Middle Atlas mountains in Morocco and the other through the Algerian Tell Atlas and Aurès mountains as well as the Middle Atlas. Combined...
Tipo: Journal Article Palavras-chave: FLUX DE GÈNES; QUATERNAIRE; FOSSILE; ÈRE GLACIAIRE; PHYLOGEOGRAPHIE; MARQUEUR ALGERIA; AFLP; DIVERSITY; GENE FLOW; GLACIAL REFUGIA; MOROCCO; NONMETRIC MULTIDIMENSIONAL SCALING ANALYSIS; POPULATION DIVERGENCE; RANGE CONTRACTION; STRUCTURE PROGRAM.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009c31932a7&uri=/notices/prodinra1/2009/07/
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Postglacial range expansion and its genetic imprints in Abies alba (Mill.). A synthesis from palaeobotanic and genetic data Inra
Liepelt, S.; Cheddadi, R.; de Beaulieu, J.L.; Fady, B.; Gömöry, D.; Hussendörfer, E.; Konnert, M.; Litt, T.; Longauer, R.; Terhürne-Berson, R.; Ziegenhagen, B..
Tipo: Journal Article Palavras-chave: CENTRAL EUROPE; MULTIPLE REFUGIA; PALYNOLOGY; HISTORY; MACROREMAINS; DNA MARKERS; ALLOZYMES; GENETIC DIVERSITY; BIOGEOGRAPHY; GENE FLOW.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20082655a12d&uri=/notices/prodinra1/2009/01/
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Primer note: A new set of highly polymorphic nuclear microsatellite markers for Nothofagus nervosa and related South American species Inra
Marchelli, P.; Caron, H.; Azpilicueta, M. M.; Gallo, L. A..
Nothofagus is the main component of southern South American temperate forests. Overexploitation in the past has led to the loss of 40% of the original distribution range. Genetic diversity as well as biological processes shaping the distribution of the genetic variation (e.g. gene flow) constitutes basic knowledge for the implementation of conservation measures and for the definition of Evolutionary Significant Units. Nuclear microsatellites are the marker of choice for gene flow and fine-scale genetic structure studies. We enlarged a previous set of microsatellites (SSRs) for South American Nothofagus species, with special concern to Nothofagus nervosa (Phil.) Dim. et Mil. Five new SSRs are presented with allele numbers up to 12 in a single population....
Tipo: Journal Article Palavras-chave: STRUCTURE GENETIQUE; POLYMORPHISME; ALLÈLE; AMPLIFICATION DE GÈNES NOTHOFAGUS; MICROSATELLITES; SOUTH AMERICA; GENE FLOW; FINE-SCALE GENETIC STRUCTURE.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200933c58e92&uri=/notices/prodinra1/2009/03/
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Spatial vs. temporal effects on demographic and genetic structures: the roles of dispersal, masting and differential mortality on patterns of recruitment in Fagus sylvatica Inra
Oddou-Muratorio, S.; Klein, E.; Vendramin, G.G.; Fady, B..
Trees’ long lifespan, long-distance dispersal abilities and high year-to-year variability in fecundity are thought to have pervasive consequences for the demographic and genetic structure of recruited seedlings. However, we still lack experimental studies quantifying the respective roles of spatial processes such as restricted seed and pollen dispersal and temporal processes such as mast seeding on patterns of regeneration. Dynamics of European beech (Fagus sylvatica) seedling recruitment was monitored in three plots from 2004 to 2006. Six polymorphic microsatellite genetic markers were used to characterize seedlings and their potential parents in a 7.2-ha stand. These seedlings were shown to result from 12 years of recruitment, with one predominant year...
Tipo: Journal Article Palavras-chave: GENE FLOW; MICROSATELLITE; SPATIAL GENETIC STRUCTURE; MATING MODEL; FOREST TREE; POLLEN DISPERSAL.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011d865b3d9&uri=/notices/prodinra1/2011/05/
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Variable patterns of contemporary gene flow in beech (Fagus sylvatical L.) across Europe Inra
Chybicki, I.J.; Oddou-Muratorio, S.; Ziehe, M.; Buiteveld, J.; Trojankiewicz, M.; Vornam, B.; Koelevijn, H.P.; Burczyk, J..
Tipo: Conference Paper Palavras-chave: GENE FLOW; MICROSATELLITE MARKER; CLIMATE CHANGE; PARENTAGE ANALYSIS; POLLEN DISPERSAL; SEED DISPERSAL.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010772d3749&uri=/notices/prodinra1/2010/06/
Registros recuperados: 18
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