1. Section for Genetics and Evolutionary Biology (EVOGENE), Department of Biosciences University of Oslo Oslo Norway
2. Department of Life and Environmental Sciences Marche Polytechnic University Ancona Italy
3. Norwegian Institute for Nature Research Oslo Norway
4. Finnish Museum of Natural History University of Helsinki Finland
5. US Department of Energy Joint Genome Institute Lawrence Berkeley National Laboratory Berkeley California USA
6. Department of Plant and Microbial Biology University of California Berkeley Berkeley California USA
7. Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, INRAE GrandEst‐Nancy Champenoux France