Exploring the interplay between mutualism and parasitism at micro- and macro-evolutionary scales

Interactions between organisms affect gene and ecosystem diversity. Given that most species are constantly challenged by both mutualistic and parasitic microorganisms, we propose that mutualism and parasitism could influence each other. Here, using plants as a model we will combine our complementary expertise to test the hypothesis that parasitism and mutualism impact the evolution of each other. To do this, we first propose to identify genes involved in parasitism or mutualism using genetic approaches (GWAS, selection scans) and to compare their evolution within species of two deeply divergent clades of land plants, angiosperms and liverworts, including in species which have lost mutualism (e.g. Arabidopsis thaliana and Marchantia polymorpha). Then, through phylogenomic approaches across the entire embryophyte phylogeny, we will finely describe the evolution of these genes and infer selective processes to understand how selection can manage the interplay between mutualism and parasitism.

Marchantia, Phylogenomics, Genome Wide Association Study, Mutualism, Parasitism

Partenaires du projet

Delaux Pierre-Marc
(UMR5546) Castanet-Tolosan France
Philippe Hervé
Station d’Ecologie Théorique et Expérimentale (UMR5321) France
Crédit photo : Libre de droits

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