...-foxQ2 and anterior   head patterning genes. Expression is visualized by double ISH, using NBT/BCIP (blue) and TSA-Dylight550 (red). Regions of co-expression are outlined. Anterior is up in all images. (Aa-g) Co-expression of Tc-foxQ2 with Tc-wg is found only after full elongation (Af,g). (Ba-g...

... homolog Optix. Drosophila Gene network Head patterning Ocelli Optix The dorsal adult head of Drosophila derives from the dorsal-anterior region of the eye-antennal imaginal disc. In addition, this disc gives rise to the remaining head capsule, the eyes, the antennae and the maxillary...

... Segmentation Cell migration Cell death Head patterning Mouse Chick Transplantation The cranial neural crest is a pluripotent mesenchymal population that plays a critical role in construction of the vertebrate head. Arising at the junction between the neural plate and surface ectoderm ( Selleck...

... of expression: establishment of the intercalary segment in the embryonic head, patterning of the central part of the wing, and formation of a specific somatic muscle. col is also expressed in specific subsets of post-mitotic sensory neurons in the head and trunk, and in CNS neurons both in the brain...