...Tobias Pauli; Makiko Seimiya; Jorge Blanco; Walter J. Gehring In Drosophila , the sine oculis ( so ) gene is important for the development of the entire visual system, including Bolwig's organ, compound eyes and ocelli. Together with twin of eyeless , eyeless , eyes absent and dachshund , so...

... oculis ( so ) and dachshund ( dac ) participate with these signaling molecules in a complex regulatory network that results in the initiation of eye development. Our analysis of functional relationships in the early eye disc indicates that hh and dpp play no role in regulating ey , but are required...