TY  - JOUR
A1  - Hensgen, Ronja
A1  - England, Laura
A1  - Homberg, Uwe
A1  - Pfeiffer, Keram
T1  - Neuroarchitecture of the central complex in the brain of the honeybee: Neuronal cell types
T2  - Journal of Comparative Neurology
N2  - The central complex (CX) in the insect brain is a higher order integration center that controls a number of behaviors, most prominently goal directed locomotion. The CX comprises the protocerebral bridge (PB), the upper division of the central body (CBU), the lower division of the central body (CBL), and the paired noduli (NO). Although spatial orientation has been extensively studied in honeybees at the behavioral level, most electrophysiological and anatomical analyses have been carried out in other insect species, leaving the morphology and physiology of neurons that constitute the CX in the honeybee mostly enigmatic. The goal of this study was to morphologically identify neuronal cell types of the CX in the honeybee Apis mellifera. By performing iontophoretic dye injections into the CX, we traced 16 subtypes of neuron that connect a subdivision of the CX with other regions in the bee's central brain, and eight subtypes that mainly interconnect different subdivisions of the CX. They establish extensive connections between the CX and the lateral complex, the superior protocerebrum and the posterior protocerebrum. Characterized neuron classes and subtypes are morphologically similar to those described in other insects, suggesting considerable conservation in the neural network relevant for orientation.
KW  - RRID: AB_2337244
KW  - RRID: AB_2315425
KW  - central complex
KW  - insect brain
KW  - neuroanatomy
KW  - sky compass
KW  - Apis mellifera
Y1  - 2021
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/21556
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-215566
VL  - 529
ER  -