<i>bantam</i> down regulates <i>omb</i> in the optic lobe.

<p>(<b>A, B</b>) The brains are positioned for lateral views. X-gal staining indicates <i>omb-lacZ</i> expression patterns in the optic lobe. eye disc (ed), optic lobe (op). (<b>A</b>) wild type brains; (<b>B</b>) over expression of <i>bantam</i> by the optic lobe driver, Mz1369-Gal4. (<b>C–D″</b>) A single focal plane of lateral view. <i>UAS</i>-CD8-GFP (green) is used to view expression of Gal4. Anti-β-galactosidase (red) is to view expression of <i>omb-lacZ</i>. Glia cells are viewed by anti-Repo (megenta). (<b>C–C″</b>) wild type; (<b>D–D″</b>) over expression of <i>bantam</i> and <i>UAS</i>-CD8-GFP by the optic lobe driver, Mz1369-Gal4. (<b>C–C″</b>) and (<b>D–D″</b>) are at a similar focal plane. Medulla glia cells are indicated by white arrows and medulla neuropile glial cells are indicated by yellow arrow heads. (<b>E–F″</b>) A single focal plane of a horizontal view is shown. (<b>E</b>) wild type brains; (<b>F–F″</b>) over expression of <i>bantam</i> and <i>UAS</i>-CD8-GFP by <i>ombC</i>-Gal4. Increased glial cells are noted by a dashed line. Scale bar: 50 µm.