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Fluorescence-based imaging of neurogenesis using transgenic expression of DsRed under the control of the doublecortin promoter. (A) A large number of neuronal precursors (red) are generated in the SVZ and migrate in toward the olfactory bulb along the RMS; (B) once neuroblasts (red) reach the granular cell layer of the olfactory bulb, they start to functionally integrate and have a more complex cellular morphology. Nuclei appear in blue. Scale bar = 10 μm.
