6 citations · 7 across the 3 of their papers we have counts for
4 papers · 1 filter
Hydrodynamic flow in the gut hinders the fixation of beneficial mutants but accelerates their invasion
Arthur Alexandre, Claude Loverdo, Anne-Florence Bitbol
Gut bacteria experience a spatially structured environment with hydrodynamic flow. Using a branching-process approach, we show that beneficial mutants arising randomly upon divisio…
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…
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…
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…