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Artykuły w czasopismach na temat "Barrières au flux de gènes"
SOUROU, Bienvenue Nawan KUIGA, Kifouli ADEOTI, Gustave DJEDATIN, Farid BABA- MOUSSA, Fatiou TOUKOUROU i Christine OUINSAVI. "Analyse de la diversité génétique moléculaire de Haematostaphis barteri (Prune rouge) à l’aide des marqueurs RAPD". Annales de l’Université de Parakou - Série Sciences Naturelles et Agronomie 10, nr 1 (30.06.2020): 41–54. http://dx.doi.org/10.56109/aup-sna.v10i1.42.
Pełny tekst źródłaBöhm, Johann, i Jocelyn Laporte. "La myopathie à agrégats tubulaires et le syndrome de Stormorken". médecine/sciences 34 (listopad 2018): 26–31. http://dx.doi.org/10.1051/medsci/201834s208.
Pełny tekst źródłaLidah Yehili, Justin, Simon-Pierre N’Guetta Assanvo, Michel Gnagne, Géraldine Blanc, Maguy Rodier-Goud, André Clément-Demange, Marc Seguin i Mondeil Fanjavola. "Flux de gènes dans un verger à graines d’hévéas sauvages (Hevea brasiliensis Müll. Arg.)". Cahiers Agricultures 16, nr 3 (maj 2007): 177–84. http://dx.doi.org/10.1684/agr.2007.0101.
Pełny tekst źródłaCarre, Denis. "Volume des échanges, nature technologique des produits et efficacité économique des secteurs industriels français". Recherches économiques de Louvain 51, nr 1 (marzec 1985): 51–70. http://dx.doi.org/10.1017/s0770451800082440.
Pełny tekst źródłaGibert, Jean-Michel. "L’évolution à petite échelle". Biologie Aujourd’hui 216, nr 1-2 (2022): 41–47. http://dx.doi.org/10.1051/jbio/2022008.
Pełny tekst źródłaJouffe, Yves, Diego Carvajal i Alejandra Lazo. "Prends soin du métro. Le contrôle-soin, forme émergente des régulations et menaces souterraines". urbe. Revista Brasileira de Gestão Urbana 7, nr 2 (sierpień 2015): 167–81. http://dx.doi.org/10.1590/2175-3369.007.002.se02.
Pełny tekst źródłaRosental, Paul-André. "Migrations, souveraineté, droits sociaux: Protéger et expulser les étrangers en Europe du XIXesiècle à nos jours". Annales. Histoire, Sciences Sociales 66, nr 2 (czerwiec 2011): 335–73. http://dx.doi.org/10.1017/s0395264900005977.
Pełny tekst źródłaBARTOLI (Michel) i DEMESURE-MUSCH (Brigitte). "Plus d'un siècle d'intervention humaine dans les flux des gènes des pins à crochets et sapins français." Revue Forestière Française, nr 6 (2003): 543. http://dx.doi.org/10.4267/2042/5212.
Pełny tekst źródłaBéji, Kamel, i Anaïs Pellerin. "Intégration socioprofessionnelle des immigrants récents au Québec : le rôle de l’information et des réseaux sociaux". Articles 65, nr 4 (9.02.2011): 562–83. http://dx.doi.org/10.7202/045586ar.
Pełny tekst źródłaHERPIN, P., M. DAMON, J. F. HOCQUETTE, F. MÉDALE, L. MOSONI, G. STÉPIEN, C. WRUTNIAK-CABELLO i G. CABELLO. "Implication des mitochondries dans la biologie musculaire : un rôle clé au cours du développement, de la croissance et de la fonte musculaire". INRAE Productions Animales 19, nr 4 (13.09.2006): 245–63. http://dx.doi.org/10.20870/productions-animales.2006.19.4.3493.
Pełny tekst źródłaRozprawy doktorskie na temat "Barrières au flux de gènes"
Burban, Ewen. "Approche génomique de la détection des barrières au flux de gènes". Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENB007.
Pełny tekst źródłaCharacterizing the mechanisms that underlie reproductive isolation between diverging lineages is central in understanding the speciation process. As populations evolve, they gradually develop reproductive isolation (RI) by passing through intermediate steps, often referred to as the "gray zone of speciation". This isolation is marked by the emergence of genomic regions acting as barriers to local gene flow, distinct from the rest of the genome. Detecting these barrier loci involves identifying outlier loci with specific signatures. However, other processes can create similar patterns, which challenges barrier loci detection. In my thesis, I developed a new tool, RIDGE - Reproductive Isolation Detection using Genomic Polymorphisms, a novel free and portable tool tailored for this purpose in a comparative framework. RIDGE utilizes an Approximate Bayesian Computation model-averaging approach based on a random forest to accommodate diverse scenarios of lineage divergence. It considers heterogeneity in migration rate, linked selection, and recombination, estimates barrier proportion and conducts locus-scale tests for gene flow barriers. Simulations and analyses of published datasets in crow species pairs demonstrate RIDGE's efficacy in detecting ongoing migration and identifying barrier loci, even for recent divergence times. Furthermore, the contribution of summary statistics varies depending on the dataset, highlighting the complexity of gene flow barrier genomic signals and the interest of combining several statistics. Subsequently, I applied RIDGE to wild/domestic pairs in maize (an outcrosser), and foxtail millet (a selfer), both domesticated around 9,000 years ago. Gene flow between forms has been reported in these two systems. Consistently, models with ongoing migration and heterogeneity in migration rate were clearly dominant over other models. RIDGE also demonstrated its ability to distinguish between barrier loci and domestication loci (that experienced selective sweeps within the domestic forms). The perspectives of this work include applying RIDGE to multiple population/species pairs encompassing a large spectrum of divergence to determine the genomic pattern of RI during speciation, to test the snowball theory formulated by Orr in 1995 or to determine the nature of speciation genes
Latouche-Hallé, Céline. "Flux de gènes et structure génétique de Dicorynia guianensis en forêt tropicale humide". Paris 11, 2004. http://www.theses.fr/2004PA112003.
Pełny tekst źródłaDicorynia guianensis is a canopy tree, endemic to the tropical rain forest of French Guiana. All adult trees within a continuous area of 40 ha (n=157), 375 saplings, and 246 progenies from 22 mature trees, were sampled and genotyped with 6 microsatellite loci and one PCR-RFLP cpDNA combination. Level of nuclear intrapopulation diversity was lower than temperate forest trees, as other tropical species. For both genomes, genetic differentiation was more pronounced between spatial aggregates than between cohorts. Spatial structure was larger for chloroplast than nuclear markers indicating a strong asymmetry between pollen and seed flow. Moreover, the species was able to maintain high levels of intrapopulation diversity for chloroplast genome. An avoidance of fixation of haplotypes is expected in recently formed aggregates for a colonizing species or in non-equilibrium situations where aggregates are subject to rapid extinction-recolonization dynamics. At the population level, the species was mostly outcrossing but there was marked variation among individuals. One tree exhibited mixed mating confirming that the self-incompatibility barriers could be relaxed. Male mating success was only moderately related to distance between trees within the study area. It was, however, related to the diameter of the stem and to the visual assessment of flowering intensity. The majority (66%) of pollen came from outside the study stand. These data suggest that the fine-scale spatial genetic structure is mainly the consequence of restricted seed dispersal, and that pollen flow has limited impact. The mating behavior of D. Guianensis is a combination of long distance pollen flow and occasional selfing
Raufaste, Nathalie. "Barrières au flux génique et sélection dans une zone hybride : étude théorique et expérimentale chez la souris domestique". Montpellier 2, 2001. http://www.theses.fr/2001MON20145.
Pełny tekst źródłaCartaud, François. "Modélisation des écoulements dans les interfaces des barrières d'étanchéité composites des installations de stockage de déchets". Paris, ENMP, 2004. http://www.theses.fr/2004ENMP1229.
Pełny tekst źródłaComposite liner at the bottom of waste landfill is based, in France, on a geomembrane overlapping a compacted clay liner. Defects exist in geomembranes and leachates, provided by water percolation through the waste, then flow in the interface between the two components of the lining system. The present work consisted in analysis, quantification and modelling of the leakage process in the interface. The experimental study has been carried out on a one-meter scale device in laboratory and allowed to assess the role of normal stress on the flow rate in interface. The case where a geotextile is present beneath the geomembrane has been also studied. The modelling allows to take into account more accurately the geometry of the interface and ensures a better quantification of leachate flow rates than using existing methods
Chaix, Gilles. "Etude des flux de gènes dans un verger à graines d'Eucalyptus grandis à Madagascar". Phd thesis, Ecole nationale superieure agronomique de montpellier - AGRO M, 2002. http://tel.archives-ouvertes.fr/tel-01071377.
Pełny tekst źródłaChaix, Gilles. "Etudes des flux de gènes dans un verger à graines d'Eucalyptus grandis à Madagascar". Montpellier, ENSA, 2002. http://www.theses.fr/2002ENSA0030.
Pełny tekst źródłaDesaint, Stéphane. "Description des populations bactériennes telluriques dégradant le carbofuran : diversité génétique et flux de gènes". Dijon, 2000. http://www.theses.fr/2000DIJOS065.
Pełny tekst źródłaVigouroux, Yves. "Betteraves transgéniques et betteraves adventices : étude des flux de gènes et de leurs conséquences". Dijon, 2000. http://www.theses.fr/2000DIJOS087.
Pełny tekst źródłaFaure, Matthieu. "Génétique des barrières semi-perméables au flux génique dans la zone d’hybridation des moules Mytilus edulis et M. Galloprovincialis". Montpellier 2, 2007. http://www.theses.fr/2007MON20225.
Pełny tekst źródłaGhesquière, Alain. "Diversité génétique de l'espèce sauvage de riz, Oryza longistaminata A. Chev. Et Roehr, et dynamique des flux géniques au sein du groupe Sativa en Afrique". Paris 11, 1988. http://www.theses.fr/1988PA112380.
Pełny tekst źródłaA genetic evaluation of the wild perennial rice Oryza longistaminata was conducted on a living collection representing the ecogeographical variability of this species in Africa. The description of the breeding system according to populations’ types confirmed that 0. Longistaminata was an allogamous species, but partial selfcompatible plants occurring in weedy populations could arise from introgressions with cultivated rices. The analysis of isozyme polymorphism on 20 loci pointed out that electrophoretic evidences of introgressions were restricted to particular and without rhizomes forms called Obake; these plants were supposed to be hybrid derivatives from indica varieties of O. Sativa. A genetic model based on a complementary set of letal genes was previously reported to assume the reproductive isolation between O. Longistaminata and the others rice species but back cross progenies did not fit with theoretical expectations and suggested penetrance effects of genes involved in reproductive barrier; besides, the heredity of rhizomatous habit presumed a close connection between the reproductive barrier and rhizomes expression. Electrophoretically detectable events indicated that interspecific hybridizations were subjected to genetic modifications including transposable elements and led to set up a comprehensive model to assume experimental data as a whole. The mechanisms of introgressions dynamic were cleared up and the Obake state was interpreted as a syndrome of cumulative deleterious effects. The evolutive significance of interspecific relationships within the Sativa group was inferred from the effects of the migration process in Africa of the wild rices; consequently, the results emphasized the major contribution of perennial forms for introducing genetic variability in cultivated rices. The basis of an efficient utilisation in plant breeding of genetic ressources provided by 0. Longistaminata were considered
Części książek na temat "Barrières au flux de gènes"
Patin, Étienne. "Population(s) humaine(s) : barrières, flux et brassages". W Civilisations : questionner l'identité et la diversité, 313–43. Odile Jacob, 2021. http://dx.doi.org/10.3917/oj.piren.2021.01.0313.
Pełny tekst źródłaFAILLE, Arnaud. "Faune souterraine et biogéographie". W La biogéographie, 159–80. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9060.ch6.
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