Rachel Dalley joined the Allen Institute's Brain Science accelerator in 2008 and is a Senior Manager in Neuroanatomy. She has contributed to large-scale efforts to map cellular diversity in the brain and now leads projects focused on neuronal morphology across species. Her current research examines how dendritic and axonal architecture varies across transcriptomically defined cell types and contributes to neuronal diversity. She leads a team that generates and analyzes Patch-seq morphologies from mouse, non-human primate, and human datasets, as well as whole-neuron morphologies that span the mouse brain. Her work connects morphology with transcriptomic, spatial, and functional datasets, supporting integrated analyses of brain cell types across species and scales. She also manages the morphology pipeline supporting this work and optimizes enhancer-based approaches for cell type-targeted labeling in whole-mouse-brain imaging. Rachel received a B.S. in Neuroscience from Washington State University.