Search results for "etique"
showing 10 items of 95 documents
Dynamiques de populations en milieu hétérogène : modèles et estimation de paramètres
2017
Prod 2017-344i SPE équipe EA GESTAD INRA; National audience; Cet exposé traite de (i) la modélisation de dynamiques de populations dans des paysages hétérogènes, (ii) la modélisation des paysages eux-mêmes, (iii) l'estimation des paramètres de ces modèles à partir de données d'abondance ou de données génétiques. Nous nous concentrerons sur deux grandes classes de modèles de dynamique des populations : les modèles individu-centrés basés sur des équations différentielles stochastiques, et les modèles de réaction-diffusion. Après une introduction du lien entre ces approches, 5 illustrations issues des projets sont présentées: - modélisation de paysages hétérogènes fragmentés, via l’outil MULTI…
Genesys : a model of the influence of cropping system on gene escape from herbicide tolerant rapeseed crops to rape volunteers I. Temporal evolution …
2001
International audience
Heterogeneous cell density and genetic structure of bacterial pools associated with various microenvironments as determined by enumeration and DNA fi…
2000
International audience
Eight microsatellite markers isolated from common ragweed (Ambrosia artemisiifolia L.) and cross-amplification with herbarium specimens
2009
; Eight microsatellite markers were developed for population genetic analyses of the common ragweed, Ambrosia artemisiifolia. Markers were tested for amplification with three populations (two recent populations from France and North America, and one historical population from herbarium specimens). These loci revealed a high level of genetic variability (5-19 alleles per locus; expected heterozygosity, 0.48-0.92). No significant deviation from Hardy-Weinberg equilibrium and no linkage disequilibrium were observed. The data thus demonstrate their utility as efficient genetic markers for determining the genetic diversity, population differentiation, and gene flow among invasive, native, and h…
Copia-like retrotransposons in the genus Setaria : sequence heterogeneity, species distribution and chromosomal organization
2003
International audience
Constituants volatils du vin jaune: identification d'acétals dérivés du glycérol
1979
National audience
Genotypic diversity of Sinorhizobium (formerly Rhizobium) meliloti strains isolated directly from a soil and from nodules of alfalfa (Medicago sativa…
1998
32 ref.; International audience
Agro-environmental impact of the cultivation of herbicide tolerant genetically modified rapeseed varieties
2001
Identification of Traits Implicated in the Rhizosphere Competence of Fluorescent Pseudomonads: Description of a Strategy Based on Population and Mode…
2009
E-book; International audience; The lack of consistency of the beneficial effects of inoculated fluorescent pseudomonads has often been related to their bad survival in the rhizosphere. In this review, we describe the strategy followed over the last decade to study traits involved in the rhizosphere competence of these bacteria. The diversity of indigenous populations associated with plant roots was first compared to that of populations associated with uncultivated soils in order to identify traits that discriminate these populations. The involvement of these bacterial traits in the rhizosphere competence was then assessed by comparing the competitiveness of a wild-type strain to that of mu…
Obtention d'anticorps monoclonaux polyvalents utilisables pour la détection ELISA du Plum pox virus (PPV) en utilisant un peptide synthétique représe…
2005
National audience