Figure 3

Gene expression during midline cell development. Representative MidExDB images from multiple stages of embryonic development are shown for (A) sim, (B) DAT, (C) CG11902, and (D) CG6225. The sim and DAT genes are expressed in midline cells derived from sim⁺ mesectodermal cells, whereas CG11902 and CG6225 are expressed in midline accessory cells. CG11902 is expressed in medial most-cell body glia (MM-CBG) and CG6225 is expressed in channel glia (CG). Ventral and sagittal views are shown at either low (12.5×) or high (50×) magnification. Below each image is a description of its expression, both for the AP data and for the confocal data. Stage 16 ventral views of DAT show its midline localization.