Expression of a CG10576-related gene. (A) At late gastrula stages, the ectodermal expression of 2G4 is enhanced on the dorsal side (d. ecto) [v. ecto, ventral ectoderm; Side view]. (B) At neural plate stages, 2G4 is expressed diffusely throughout the neural plate, PPE and dorsal epidermis [Antero-lateral view]. (C) 2G4 is expressed throughout the neural tube, retina, PPE, cranial neural crest and epidermis [Anterior view]. (D) At tail bud stages, 2G4 is intensely expressed in the retina, diencephalon (di), hindbrain, placodes (olf, L, oto), branchial arches and weakly in the nephric mesoderm [Side view]. (E) At larval stages, the neural tube expression expands to the dorsal spinal cord, and nephric mesoderm staining is prominent [Side view]. Transverse sections at hindbrain (F) and spinal (G) levels demonstrate neural (hb, sc), branchial arch, otocyst, epidermal and nephric mesoderm expression.