High-throughput sequencing of single neuron projections reveals spatial organization in the olfactory cortex.
Cell
; 185(22): 4117-4134.e28, 2022 10 27.
Article
em En
| MEDLINE
| ID: mdl-36306734
ABSTRACT
In most sensory modalities, neuronal connectivity reflects behaviorally relevant stimulus features, such as spatial location, orientation, and sound frequency. By contrast, the prevailing view in the olfactory cortex, based on the reconstruction of dozens of neurons, is that connectivity is random. Here, we used high-throughput sequencing-based neuroanatomical techniques to analyze the projections of 5,309 mouse olfactory bulb and 30,433 piriform cortex output neurons at single-cell resolution. Surprisingly, statistical analysis of this much larger dataset revealed that the olfactory cortex connectivity is spatially structured. Single olfactory bulb neurons targeting a particular location along the anterior-posterior axis of piriform cortex also project to matched, functionally distinct, extra-piriform targets. Moreover, single neurons from the targeted piriform locus also project to the same matched extra-piriform targets, forming triadic circuit motifs. Thus, as in other sensory modalities, olfactory information is routed at early stages of processing to functionally diverse targets in a coordinated manner.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Condutos Olfatórios
/
Córtex Olfatório
Limite:
Animals
Idioma:
En
Revista:
Cell
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos