axon & photoreceptor cell R2
axon & photoreceptor cell R3
axon & photoreceptor cell R4
axon & photoreceptor cell R5
In Sgf11e01308 larvae, many R2-R5 axons fail to terminate in the lamina and instead project into the medulla. Additionally, glial cells fail to migrate from the dorsal and ventral glial precursor cell areas to form their characteristic layers along the lamina.
GluRIIASP16, Sgf11e01308 has abnormal neurophysiology | larval stage phenotype
Excision of the PBac{RB} element restores viability.