Team PI : GOURBIERE Sébastien
1. What are the -omic determinants of antiviral resistance in unicellular phytoplanktonic organisms, and what impact do those determinants have on the eco-evolutionary dynamics of their interactions in variable abiotic contexts ?
2. What are the contributions of top-down and bottom-up regulatory factors to the invasion dynamics of phytophagous insects ?
3. What are the ecological and genomic determinants of transposable elements dynamics, and how can they contribute to plant adaptation to environmental changes ?
Our work on phytoplankton-virus interactions is being developed through the ANR projects 'PHYTOMICS' and 'ELVIRA', along with the support of the i) Occitanie area and the EUR ‘TULIP-GS’ to R. Rousseau's PhD (2022-2025) and of the ii) UPVD that is funding C. Baux's PhD (2024-2027). Studies on invasion dynamics were funded by the CNRS (MITI) for the 'CTRL-INVASION' project and from the Occitanie region for J.L. Zitoun's PhD (2019-2022). Research on the eco-genomic dynamics of transposable elements has also been supported by the CNRS (MITI) that has funded the 'EPIDEOMICS' project.
Keywords: algae-virus interactions, plant-insect interactions, biological invasion, transposable elements, modelling, dynamical systems, differential equations, individual based models
Reasearch topics
Characterizing the plasticity and evolutionary potential of populations is essential to our understanding of species diversity and distribution, and to anticipate their responses to environmental changes. Such a fundamental knowledge is therefore deeply needed to design public policies aimed at preserving biodiversity, its services and our means of subsistence. The exponentiation of '-omics' approaches is revealing in ever greater details the mechanisms of interaction between genes, non-genes and the regulation of genome expression that determine the ability of organisms to respond to changes in their environment. A major scientific challenge then lies in integrating our knowledge of the molecular mechanisms involved in acclimatation and adaptation with our understanding of the eco-evolutionary dynamics of natural populations. We aim to contribute to this challenge in an intrinsically interdisciplinary way, by proposing 'Eco-genomic' theories bringing together molecular, demographic and evolutionary processes within models that can establish proofs of concept and/or be directly confronted with experimental data. To this end, we are developing different types of dynamical models to answer questions relating to the ecology and evolution of interactions between hosts, parasites and their abiotic environments;1. What are the -omic determinants of antiviral resistance in unicellular phytoplanktonic organisms, and what impact do those determinants have on the eco-evolutionary dynamics of their interactions in variable abiotic contexts ?
2. What are the contributions of top-down and bottom-up regulatory factors to the invasion dynamics of phytophagous insects ?
3. What are the ecological and genomic determinants of transposable elements dynamics, and how can they contribute to plant adaptation to environmental changes ?
Our work on phytoplankton-virus interactions is being developed through the ANR projects 'PHYTOMICS' and 'ELVIRA', along with the support of the i) Occitanie area and the EUR ‘TULIP-GS’ to R. Rousseau's PhD (2022-2025) and of the ii) UPVD that is funding C. Baux's PhD (2024-2027). Studies on invasion dynamics were funded by the CNRS (MITI) for the 'CTRL-INVASION' project and from the Occitanie region for J.L. Zitoun's PhD (2019-2022). Research on the eco-genomic dynamics of transposable elements has also been supported by the CNRS (MITI) that has funded the 'EPIDEOMICS' project.
Keywords: algae-virus interactions, plant-insect interactions, biological invasion, transposable elements, modelling, dynamical systems, differential equations, individual based models
Keywords: algae-virus interactions, plant-insect interactions, biological invasion, transposable elements, modeling, dynamic systems, differential equations, individual-centered model
Funded projects
- ANR PHYTOMICS (2022 - 2027) : Interactions phytoplankton-virus: des bases moléculaires de la résistance aux virus à leurs dynamiques éco-évolutives. Coordinateur : Sébastien Gourbiere (UPVD/CNRS, Perpignan), Partenaires : Gwenael Piganeau (CNRS, Banyuls sur mer) et Didier STIEN (SU/CNRS, Banyuls sur Mer).
- ANR ELVIRA (2022 - 2026) : Ecogénomique des interactions phytoplancton-virus en réponse aux variations des facteurs abiotiques (salinité et phosphate). Coordinatrice : Gwenael Piganeau (CNRS, Banyuls sur mer), Partenaires : Sébastien Gourbiere (UPVD/CNRS, Perpignan) et Elisa Schaum (HU, Hambourg).
- MITI EPIDEOMICS (2021-2023) : Modélisation Epidémio-Génomique des interactions algues-virus. Coordinateur : Sébastien Gourbiere (UPVD/CNRS, Perpignan), Partenaires : Sheree Yau (CNRS, Banyuls sur mer), Rémy Merret (UPVD/CNRS, Perpignan), Martin Rosalie (UPVD/CNRS, Perpignan), Arnaud Casteigts (UB, Bordeaux), Dominique Pontier (UCBL, Lyon).
- MITI CTRL-INVASION (2020-2022) : Invasion biologique et ressource hétérogène : de la modélisation à la gestion ‘Eco-Bio-Sociale’. Coordinateur : Sébastien Gourbiere (UPVD/CNRS, Perpignan), Partenaires : Joris Bertrand (UPVD/CNRS, Perpignan), Martin Rosalie (UPVD/CNRS, Perpignan), Arnaud Casteigts (UB, Bordeaux), Guillaume Lacquement (UPVD/CNRS, Perpignan).
- CONACYT (2016-2019). Modélisation intégrative des dynamiques hôtes-parasites ; de l’écologie parasitaire à l’écologie du génome. Coordinateur : Sébastien Gourbiere (UPVD/CNRS, Perpignan).
- CONACYT (2016-2019). ‘Diseño de estrategias de control vectorial de enfermedades de importancia nacional basadas en la ecología de los vectores’. Coordinateur : Etienne Waleckx (IRD, Montpellier), Partenaire : Gourbiere (UPVD/CNRS, Perpignan).
- Projet Fédération de Recherche en Écologie & Environnement UPVD (2024) : Dynamiques Salariales et Sociales/Sociétales dans le territoire des Pyrénées-Orientales (DySSPO). Modélisation globale de données et obtention d'un système d'équations différentielles. Coordinateurs : Vincent Lignon (UPVD, Perpignan) et Martin Rosalie (UPVD/CNRS, Perpignan).
- Projet Fédération de Recherche en Écologie & Environnement UPVD (2022) : Analyse de la dynamique d’Ostreococcus en co-évolution avec des virus. Modélisation individus-centrés à l'aide de l'algorithme de Gillespie. Coordinateur : Martin Rosalie (UPVD/CNRS, Perpignan), Partenaires : Sébastien Gourbière (UPVD/CNRS, Perpignan), Assalé Adjé (UPVD, Perpignan) et David Defour (UPVD, Perpignan).
Members
Past members
- Jean-Loup Zitoun (2019 - 2024)
- Alheli Flores Ferrer (2016 - 2019)
Publications
- Articles
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- Communications
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- Thèse et HDR
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Updated : June 20, 2025