Research and Development department, Cellectis, 8 rue de la Croix Jarry, Paris 75013, France. philippe.duchateau@cellectis.com.|Research and Development department, Cellectis, 8 rue de la Croix Jarry, Paris 75013, France. philippe.duchateau@cellectis.com.|Research and Development department, Cellectis, 8 rue de la Croix Jarry, Paris 75013, France. philippe.duchateau@cellectis.com.|Research and Development department, Cellectis, 8 rue de la Croix Jarry, Paris 75013, France. philippe.duchateau@cellectis.com.|Research and Development department, Cellectis, 8 rue de la Croix Jarry, Paris 75013, France. philippe.duchateau@cellectis.com.|Research and Development department, Cellectis, 8 rue de la Croix Jarry, Paris 75013, France. philippe.duchateau@cellectis.com.|Drosophila RNAi Screening Center, Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA. stephanie_mohr@hms.harvard.edu.