Recherche avancée
Affichage des résultats 3221 à 3240 sur 8965 au total
-
Can we do more with less ? Qualitative discrete-event models of ecological systems and their formal analysis
-
Multimorbidity Patterns and Periodontal Diseases in a French Hospital-Based Dental School: A Retrospective Cross-Sectional Study
Blandine Robert, Maxime Bonjour, Brigitte Grosgogeat, Kerstin Gritsch
-
A revisited version of the disputatio for pharmacological training: An educational study
Louise Carton, Perle Totoson, Edouard-Jules Laforgue, Jean-Marc Pelerin, Thomas Portier-Feunteun, Sabine Mainbourg, Dominique Deplanque, Luc Zimmer, Silvy Laporte, Régis Bordet, Guillaume Grenet, Samuel Legeay
-
Preoperative 11C-Methionine PET-MRI in Pediatric Infratentorial Tumors
Pierre-Aurélien Beuriat, Anthime Flaus, Aurélie Portefaix, Alexandru Szathmari, Marc Janier, Marc Hermier, Sylvie Lorthois-Ninou, Christian Scheiber, Sibel Isal, Nicolas Costes, Inés Mérida, Sophie Lancelot, Alexandre Vasiljevic, Pierre Leblond, Cécile Faure-Conter, Clarisse Saunier, Behrouz Kassaï, Matthieu Vinchon, Federico Di Rocco, Carmine Mottolese
-
Dating the origin of a viral domestication event in parasitoid wasps attacking Diptera
Benjamin Guinet, Jonathan Vogel, Nabila Kacem Haddj El Mrabet, Ralph S Peters, Jan Hrcek, Mattew L Buffington, Julien Varaldi
-
Soutenance HDR Laure Ségurel
How are species adapting to their environment: Positive selection, balancing selection, and gut microbiota
-
Retraite du laboratoire / Lab retreat
-
Conférence ALPHY - AIEM 2025
La conférence ALPHY - AIEM 2025, co-organisée par le LBBE, aura lieu du 3 au 5 février 2025 à La Rotonde de l'INSA de Lyon.
-
Phylogenetic relatedness rather than aquatic habitat fosters horizontal transfer of transposable elements in animals
Héloïse Muller, Rosina Savisaar, Jean Peccoud, Sylvain Charlat, Clément Gilbert
-
Comparative transcriptomics in serial organs uncovers early and pan-organ developmental changes associated with organ-specific morphological adaptation
Marie Sémon, Marion Mouginot, Manon Peltier, Claudine Corneloup, Philippe Veber, Laurent Guéguen, Sophie Pantalacci
-
Brucellosis dynamics in Alpine ibex: all caused by females?
Sébastien Lambert, Emmanuelle Gilot-Fromont, Carole Toïgo, Pascal Marchand, Clément Calenge, Elodie Petit, Jean-Pierre Ganière, Bruno Garin-Bastuji, Dominique Gauthier, Jean-Michel Gaillard, Sophie Rossi, Anne Thébault
-
Genome Streamlining: Effect of Mutation Rate and Population Size on Genome Size Reduction
Juliette Luiselli, Jonathan Rouzaud-Cornabas, Nicolas Lartillot, Guillaume Beslon
-
Parametric and nonparametric population pharmacokinetic analysis of fluconazole in critically ill patients and dosing simulations for Candida infections
Elodie Matusik, Olivia Vassal, Anne Conrad, Tristan Ferry, Aurélien Millet, Damien Dupont, Lola Grandjean, Jérôme Guitton, Sandrine Roux, Anne-Lise Bienvenu, Julien Bohé, Arnaud Friggeri, Sylvain Goutelle
-
Allostery and Evolution: A Molecular Journey Through the Structural and Dynamical Landscape of an Enzyme Super Family
Sandrine Coquille, Caroline Simões Pereira, Jennifer Roche, Gianluca Santoni, Sylvain Engilberge, Céline Brochier-Armanet, Eric Girard, Fabio Sterpone, Dominique Madern
-
Up-regulation of avian uncoupling protein in cold-acclimated and hyperthyroid ducklings prevents reactive oxygen species production by skeletal muscle mitochondria
Benjamin Rey, Damien Roussel, Caroline Romestaing, Maud Belouze, Jean-Louis Rouanet, Dominique Desplanches, Brigitte Sibille, Stéphane Servais, Claude Duchamp
-
Développement d’approches métabolomiques pour étudier la contribution des symbiotes à l’exploitation et à la spécialisation de niche de Bemisia tabaci, insecte invasif ravageur de cultures
Federica Calevro, Isabelle Rahioui, Laurence Mouton
-
Hétérogénéité de transmission de la brucellose chez le Bouquetin des Alpes
Sébastien Lambert, Emmanuelle Gilot-Fromont, Pauline Freycon, Anne Thébault, Yvette Game, Carole Toïgo, Elodie Petit, Marie-Noëlle Barthe, Gaël Reynaud, Maryne Jaÿ, Bruno Garin-Bastuji, Claire Ponsart, Jean Hars, Sophie Rossi
-
Simulating evolutionary scenarios to test whether they can induce reductive evolution
Bérénice Batut, Mathilde Dumond, Gabriel Marais, Guillaume Beslon, Carole Knibbe
-
Host phylogeny and diet drive the structure of mammalian microbial communities at different phylogenetic scales
Bacterial communities (microbiota) living in Mammal guts are composed of thousands of bacterial species that are essential for host physiology, immunity and diet. It has been shown that host phylogeny (genetics and immune system of the host) and diet are the two major factors driving the composition of gut microbiota. However, major questions remain: (i) the relative contribution of host phylogeny and diet at short and long time scales is highly debated and the two processes are not well characterized, (ii) host phylogeny may drive the composition through co-evolution with bacterial lineages or through niche selection, with closely-related hosts retaining similar bacteria from the environment. Here, we show that host phylogeny and diet are for the most part independent processes and do not drive the bacterial composition at the same taxonomic scale. Diet determines what lineage is present or not at deep bacterial phylogenetic levels through gain or loss of lineages creating nested communities. Host phylogeny, however, selects the lineages at finer scales through true turnover of lineages, consistent with a more stringent selection of tolerated antigens. Finally, it appears that co-speciation between hosts and bacterial lineages plays a minor role in driving the correlation between community composition and host phylogeny, suggesting that environmental filtering by host genetics is the dominant process at selecting bacterial lineages. Our results shed light on the long-timescale evolutionary dynamic of gut bacterial communities, which are multi-layered phylogenetic structures shaped very differently by host phylogeny and diet.
-
Gathering, updating, and calibrating phylogenies for The Open Tree of Life
The Open Tree of Life project is a collaborative effort to synthesize, share, and update a comprehensive phylogeny of all 2.3 million named species. We have completed a draft synthesis of a single tree from hundreds of phylogenetic estimates using taxonomy as a scaffold. This synthesis is not static but rather will be continually revised as new data become available. This undertaking requires development of both novel infrastructure and analysis tools. I will discuss three components of this project: Phylesystem, an open database and web application for community curation of phylogenies using a git-based datastore, PhyScraper, a pipeline to continually update phylogenetic estimates as new data is generated, and FastDate, an algorithm to rapidly generate maximum a posteriori estimates of time-calibrated trees, even for phylogenies with hundreds or thousands of tips. Together, these developments reduce impediments to accessing, analyzing and reusing the phylogenetic information which is essential to biological research today.