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Registros recuperados: 8
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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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Accounting for biological variability and sampling scale: a multi-scale approach to building epidemic models Inra
Soubeyrand, S.; Thébaud, G.; Chadoeuf, J..
When one considers the fine-scale spread of an epidemic, one usually knows the sources of biological variability and their qualitative effect on the epidemic process. The force of infection on a susceptible unit depends on the locations and the strengths of the infectious units, and on the environmental and intrinsic factors affecting infectivity and/or susceptibility. The infection probability for the susceptible unit can then be modelled as a function of these factors. Thus, one can build a conceptual model at the fine scale. However, the epidemic is generally observed at a larger scale and one has to build a model adapted to this larger scale. But how can the sources of variation identified at the fine scale be integrated into the model at the larger...
Tipo: Journal Article Palavras-chave: DISPERSION DU POLLEN; DISPERSION STOCHASTIQUE MIXED MODELS; DISEASE SPREAD; INFERENCE; PATTERN; MULTI-SCALE MODELLING; PROPAGULE DISPERSAL; STOCHASTIC DISPERSAL; DISEASE TRANSMISSION; POLLEN DISPERSAL.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200754ac47a0&uri=/notices/prodinra1/2010/11/
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Assortative mating and differential male mating success in an ash hybrid zone population Inra
Gérard, P.R.; Klein, E.K.; Austerlitz, F.; Fernandez-Manjarrés, J.F.; Frascaria-Lacoste, N..
Background: The structure and evolution of hybrid zones depend mainly on the relativeimportance of dispersal and local adaptation, and on the strength of assortative mating. Here, we study the influence of dispersal, temporal isolation, variability in phenotypic traits and parasite attacks on the male mating success of two parental species and hybrids by real-time pollen flow analysis. We focus on a hybrid zone population between the two closely related ash species Fraxinusexcelsior L. (common ash) and F. angustifolia Vahl (narrow-leaved ash), which is composed ofindividuals of the two species and several hybrid types. This population is structured by flowering time: the F. excelsior individuals flower later than the F. angustifolia individuals, and the...
Tipo: Journal Article Palavras-chave: DISPERSION DU POLLEN; MODELE GENETIQUE; PHENOTYPE; FACTEUR TEMPS FRAXINUS EXCELSIOR; FRAXINUS ANGUSTIFOLIA.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007bb351de5&uri=/notices/prodinra1/2007/05/
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Crop-to-wild gene flow, introgression and possible fitness effects of transgenes Inra
Jenczewski, E.; Ronfort, J.; Chèvre, A.M..
Tipo: Journal Article Palavras-chave: FLUX DE GENE; INTROGRESSION; TRANSFERT DE GENE; PLANTE TRANSGENIQUE; DISPERSION DU POLLEN; RECOMBINAISON GENETIQUE; COMPATIBILITE.
Ano: 2003 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0300006768096731&uri=/notices/prodinra1/2009/12/
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Life at the margins: the mating system of Mediterranean conifers Inra
Restoux, G.; Silva, D.E.; Sagnard, F.; Klein, E.; Fady, B..
Tipo: Meeting Paper Palavras-chave: DISPERSION DU POLLEN; ISOZYME; DIVERSITE GENETIQUE MIXED MATING; MATING SYSTEM; SELFING; DENSITY; ADAPTIVE POTENTIAL.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008bef677ba&uri=/notices/prodinra1/2008/08/
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Low level of pollen-mediated gene flow from cultivated to wild grapevine: consequences for the evolution of the endangered subspecies Vitis vinifera L. subsp. silvestris Inra
Di Vecchi-Staraz, M.; Laucou, V.; Bruno, G.; Lacombe, T.; Gerber, S.; Bourse, T.; Boselli, M.; This, P..
A parentage and a paternity-based approach were tested for estimation of pollen-mediated gene flow in wild grapevine (Vitis vinifera L. subsp. silvestris), a wind-pollinated species occurring in Mediterranean Europe and southwestern Asia. For this purpose, 305 seedlings collected in 2 years at 2 locations in France from 4 wild female individuals and 417 wild individuals prospected from France and Italy were analyzed using 20 highly polymorphic microsatellite loci. Their profiles were compared with a database consisting of 3203 accessions from the Institut National de la Recherche Agronomique Vassal collection including cultivars, rootstocks, interspecific hybrids, and other wild individuals. Paternity was assigned for 202 (66.2%) of the 305 seedlings,...
Tipo: Journal Article Palavras-chave: ANALYSE DE PATERNITÉ; DISPERSION DU POLLEN; PLANTE TRANSGÉNIQUE; VIGNE SAUVAGE; MICROSATELLITE; EXTRACTION D'ADN PATERNITY ANALYSIS; POLLEN DISPERSAL; ROOTSTOCK; SEEDLING; TRANSGENIC PLANT; TRUE-TO-TYPE.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20097040a34d&uri=/notices/prodinra1/2009/03/
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Mesoscale dispersal of pollen and implications for gene flow Inra
Brunet, Y.; Dupont, S.; Delage, S.; De Luca, M.; Tulet, P.; Pinty, J.-P.; Lac, C.; Escobar, J.; Foueillassar, X..
Tipo: Meeting Paper Palavras-chave:  MODELE MESO-NH; ECHELLE REGIONALE; MESURES AEROPORTEES; DISPERSION DU POLLEN; COUCHE LIMITE ATMOSPHERIQUE.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009aa18180e&uri=/notices/prodinra1/2011/05/
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Pollen flow in the wildservice tree, Sorbus torminalis (L.) Crantz. IV. Whole inter-individual variance of male fecundity estimated jointly with the dispersal kernel Inra
Klein, E.K.; Dessasis, N.; Oddou-Muratorio, S..
Interindividual variance of male reproductive success (MRS) contributes to genetic drift, which in turn interacts with selection and migration to determine the short-term response of populations to rapid changes in their environment. Individual relative MRS can be estimated through paternity analysis and can be further dissected into fecundity and spatial components. Existing methods to achieve this decomposition either rely on the strong assumption of a random distribution of pollen donors (TwoGener) or estimate only the part of the variance of male fecundity that is explained by few covariates. We developed here a method to estimate jointly the whole variance of male fecundity and the pollen dispersal curve from the genotypic information of sampled seeds...
Tipo: Journal Article Palavras-chave: POLLEN; DISPERSION DU POLLEN; APPROCHE BAYESIENNE; MIGRATION GENETIQUE; FECONDITE BAYESIAN APPROACH; LONG-DISTANCE DISPERSAL; MATING SYSTEM; MICROSATELLITE MARKERS; POLLEN DISPERSAL; GENETIC DRIFT; FOREST TREE.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200811045a0a&uri=/notices/prodinra1/2010/11/
Registros recuperados: 8
Primeira ... 1 ... Última
 

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