About the Authors
Institute of Molecular Life Sciences (IMLS), University of Zurich, Zurich, Switzerland
Centre de Génétique et de Physiologie Moléculaire et Cellulaire, Université Claude Bernard Lyon I, Villeurbanne, France
Institute of Evolutionary Biology and Environmental Studies (IEES), University of Zurich, Zurich, Switzerland
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: CFL NR BL. Performed the experiments: NR RD GAO CFL. Analyzed the data: NR CFL RD BL HCB. Wrote the paper: CFL NR BL.