3 papers
q-bio.PE2026
Environment heterogeneity creates fast amplifiers of natural selection in graph-structured populations
Cecilia Fruet, Arthur Alexandre, Alia Abbara +2
Complex spatial structure, with partially isolated subpopulations, and environment heterogeneity, such as gradients in nutrients, oxygen, and drugs, both shape the evolution of nat…
q-bio.PE2025
Impact of complex spatial population structure on early and long-term adaptation in rugged fitness landscapes
Richard Servajean, Arthur Alexandre, Anne-Florence Bitbol
We investigate the exploration of rugged fitness landscapes by spatially structured populations with demes on the nodes of a graph, connected by migrations. In the rare migration r…
q-bio.PE2024
Bridging Wright-Fisher and Moran models
Arthur Alexandre, Alia Abbara, Cecilia Fruet +2
The Wright-Fisher model and the Moran model are both widely used in population genetics. They describe the time evolution of the frequency of an allele in a well-mixed population w…