1. Department of Developmental Biology Centre for Organismal Studies (COS) Heidelberg Heidelberg Germany
2. The Barcelona Institute of Science and Technology Centre for Genomic Regulation (CRG) Barcelona Spain
3. Flow Cytometry Core Facility European Molecular Biology Laboratory (EMBL) Heidelberg Germany
4. Developmental Biology Erlangen‐Nürnberg University Erlangen Germany
5. Universitat Pompeu Fabra (UPF) Barcelona Spain