1. Department of Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Plön, Germany
2. New Zealand Institute for Advanced Study, Massey University at Albany, Auckland, New Zealand
3. Department of Microbial Population Biology, Max Planck Institute for Evolutionary Biology, Plön, Germany
4. Laboratoire des Interactions Plantes-Microorganismes (LIPM), Université de Toulouse, INRA, CNRS, Castanet-Tolosan, France
5. School of Natural and Computational Sciences, Massey University at Albany, Auckland, New Zealand
6. Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI ParisTech), CNRS UMR 8231, PSL Research University, Paris, France