1. Department of Molecular Mechanisms of Phenotypic Plasticity Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique Université de Strasbourg Strasbourg France
2. Department of Developmental Biology Biozentrum Klein Flottbek University of Hamburg Hamburg Germany
3. RIKEN Center for Sustainable Resource Science Tsurumi Yokohama Japan
4. Institut de Biologie de l'Ecole Normale Supérieure CNRS UMR 8197–INSERM U 1024 Paris France