Spatially organized genomic and physiological heterogeneity of the olfactory bulb mitral cell layer
Paseltiner, D.; Loeffler, H.; Andonian, A.; Leberman, A.; Gould, T. J.; Castro, J. B.
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Sensory inputs to the dorsal vs ventral olfactory bulb derive from distinct receptor families, and drive distinct behaviors. To address whether second-order OB neurons and circuits exhibit matching heterogeneity for input-specific readout, we clustered spatial expression profiles of >2,000 genes from the mitral cell layer (MCL). We observed clear dorsal and ventral clusters, together with dorsoventral differences in mitral cell physiology. Bulbar circuits may therefore be tuned for zone-specific computation.
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