I work on the evolution of interspecific interactions (plants/phytophages, phytophagous insects/bacterial symbionts) and their role in the diversification of life. Since joining INRAe, I have developed a research program on aphids (Hemiptera: Aphididae). They are not only fascinating biological models in evolutionary biology due to the complexity of their life cycles and their specialization with respect to their host plants, but also an agronomically important group, as they include species responsible for significant damage to crops and ornamental plants.

My work aims, through targeted phylogenetic studies on a few groups, to highlight the role of adaptation to host plants as well as that of bacterial symbionts in the evolution and diversification of aphids. To this end, I work at different taxonomic scales (from the family level up to species complexes) that reflect various timescales.