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Stochastic dynamics for adaptation and evolution of microorganisms

De Sylvie Méléard

Apparaît dans la collection : Mathematical Population Dynamics, Ecology and Evolution 2023 / Mathématiques pour la Dynamique des population, l'Ecologie et l'Evolution

Understanding the adaptation and evolution of populations is a huge challenge, in particular for microorganisms since it plays a main role in the virulence evolution or in bacterial antibiotics resistances. We propose a general stochastic model of population dynamics with clonal reproduction and mutations. Moreover the individuals compete for resources and exchange genes. We show that the horizontal gene transfer can have a major impact on the distribution of the successive mutational fixations, leading to dramatically different behaviors, from expected evolution scenarios to evolutionary suicide, including cyclic behaviours. We present different approaches to capture mathematically these scenarii.

Informations sur la vidéo

Date de captation 25/04/2023
Date de publication 10/05/2023
Institut CIRM
Licence CC BY NC ND
Langue Anglais
Audience Chercheurs, Doctorants
Réalisateur(s) Guillaume Hennenfent
Format MP4

Données de citation

DOI 10.24350/CIRM.V.20039703
Citer cette vidéo MELEARD, Sylvie (25/04/2023). Stochastic dynamics for adaptation and evolution of microorganisms. CIRM. Audiovisual resource. DOI: 10.24350/CIRM.V.20039703
URL https://dx.doi.org/10.24350/CIRM.V.20039703

Domaine(s)

Bibliographie

BILLIARD, Sylvain, COLLET, Pierre, FERRIÈRE, Régis, et al. Stochastic dynamics for adaptation and evolution of microorganisms. arXiv preprint arXiv:1610.00983, 2016. - https://arxiv.org/abs/1610.00983

Codes MSC

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