ホヤの眼と耳はどうやって決まるか?-発生における等価群-

抄録

The cell fate determination in ascidian embryos is mediated by various cell interactions. Two sensory pigment cell precursors constitute an equivalence group, in which the ocellus (eye) pathway is the dominant fate. It is suggested that the unique cell interaction, which is called lateral inhibition, is involved in determination events of these equivalent cells. It is likely that the mode of specification which utilizes the lateral inhibition within equivalent cells plays a fundamental role during early embryogenesis in both invertebrates and vertebrates.