1. Department of Plant Systems Biology, VIB, B-9052 Ghent, Belgium
2. Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
3. Institut für Entwicklungsgenetik, Heinrich-Heine Universität Düsseldorf, D-40225 Duesseldorf, Germany
4. Institute of Plant Biology, Biological Research Centre, H-6701 Szeged, Hungary
5. Max-Planck-Institut für Züchtungsforschung, D-50829 Cologne, Germany
6. Royal Holloway, University of London, Centre for Systems and Synthetic Biology, TW20 0EX Egham, United Kingdom