Extended Data Fig. 3: Schematic representation of the zebrafish retina before and after cell detachment from apical and basal tissue boundaries.
From: A nuclear jamming transition in vertebrate organogenesis

a, The zebrafish is a single-layered neuroepithelium with elongated cells connected to both the apical and basal tissue surfaces at 24 hpf. b, At approximately 40–42 hpf, majority of retinal cells detach from the tissue (apical and basal) boundaries and form a tissue with compact cells. This single-layered tissue eventually evolves into the different layers described in the main text (Fig. 3).