Fig. 2
From: The homeodomain transcription factor Orthopedia is involved in development of the Drosophila hindgut
Expression of Otp during embryonic development. Laser confocal images of Drosophila embryos labeled with an anti-Otp antibody (green). Stages were determined according to Campos-Ortega and Hartenstein (1997) [1] as indicated in the figure. a-c Lateral views of embryos, the anterior ends are to the left. In c the expression border in the ventral nerve cord is shown by an arrowhead. d Ventral view of the embryonic nerve cord, segments T1-A2 are labeled and the border of the nervous system expression is again indicated by an arrowhead. e Dorsal view of an embryonic brain stained with anti-Otp (green) and anti-Nrt antibodies (red) to visualize the primary neurons, the Otp expression domains are labelled P1 (protocerebrum), P2 (protocerebrum) and D1 (deutocerebrum). The supraesoghageal commissure is indicated by an arrowhead