Gene network evolution.

When we undertook genome scans of tetraploid A. arenosa, we found that many of the genes showing evidence of selection are known to interact as proteins and/or function together in pathways or networks. How such interacting networks of proteins co-evolve or affect one anothers' evolutionary trajectories in natural populations and how this might affect their adaptive potential remains an intriguing question in evolutionary biology. Does co-evolution constrain them, or does it open new potential? In what ways to signals of selection perpetuate across gene networks? We are interested in using our sampling of >300 resequenced A. arenosa genomes from throughout the range to study the evolution of gene networks.