New aspects of structure and development experimental brain research series. Genes involved in forebrain development in the zebrafish. A novel role for zebrafish zic2a during forebrain development. Fgf19 regulated by hh signaling is required for zebrafish. We show that zic2a is required for the correct formation of the ad prethalamus and preoptic area, and identify an early requirement for zic2a in the pt primordium that involves maintenance of arx transcription. Please use this form to recommend updates to the information in zfin. Fgf16 is required for specification of gabaergic neurons and oligodendrocytes in the zebrafish forebrain. Pdf fgf16 is required for specification of gabaergic. Training program, university of wisconsin, madison, usa received for publication 2 november 2007. Hardcopies of the 4th edition of the zebrafish book can be obtained for a nominal fee from the zebrafish international resource center, 5274 university of oregon, eugene, or 97403 usa. We appreciate as much detail as possible and references as appropriate.