Annulate Lamellae Occur throughout the Embryo, Related to Figure 3
(A) Stitched Transmission electron micrographs (TEM) of an entire Drosophila syncytial blastoderm embryo in interphase, showing peripheral nuclei (arrowheads) and interior regions close to the yolk nuclei. AL occur close to cortical nuclei but also distant from dividing cortical nuclei (blue boxes).
(B–B″) Higher magnifications of the blue-boxed areas in (A), showing AL with NPCs on parallel membrane sheets (yellow boxes).