substage of embryonic stage embryonic cycle 14 FlyBase_development_CV The 14th mitotic cell cycle of embryogenesis. This is the first round of nuclear division to occur in a cellularized embryo, so this is the first round of cell division. Embryonic cycle 14 mitosis is asynchronous across the embryo, but occurs synchronously within discrete domains, known as mitotic domains. Temporal ordering number - 255. The asynchronous nature of cycle 14 divisions means that this is not very useful for annotating stage. If possible a standard embryonic stage should be used instead. FBdv:00005312 first blastoderm mitosis embryonic cycle