OA-AL2b2 [FBbt_00053405]

Octopaminergic neuron of the AL2 cluster which innervates the ipsilateral and contralateral outer medulla (Busch et al., 2009; Eckstein et al., 2024; Nern et al., 2025. In the medulla, it is mainly presynaptic, sending output to around 150-200 columns of layer M1, with more synapses and more column coverage in the ipsilateral medulla (Nern et al., 2025. It has its soma ventral-medial to the antennal lobe and is a putative embryonic-born neuron (Schlegel et al., 2024; Dorkenwald et al., 2024. Its main process extends posteriodorsally from the soma, close to the esophageal foramen, then bifurcates in the posterior brain, projecting to both optic lobes (Busch et al., 2009; Dorkenwald et al., 2024; Schlegel et al., 2024; Nern et al., 2025. In the central brain, it receives input in the ipsilateral inferior and superior posterior slope, and the gnathal ganglion (Schlegel et al., 2024; Dorkenwald et al., 2024. There are two of these cells per hemisphere (Nern et al., 2025. (Dorkenwald et al., 2024, Busch et al., 2009)
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OA-AL2b2 OA-AL2b2 OA-AL2b2 OA-AL2b2

OA-AL2b2

ID: FBbt_00053405

Adult Nervous system Octopaminergic primary neuron

Octopaminergic neuron of the AL2 cluster which innervates the ipsilateral and contralateral outer medulla (Busch et al., 2009; Eckstein et al., 2024; Nern et al., 2025. In the medulla, it is mainly presynaptic, sending output to around 150-200 columns of layer M1, with more synapses and more column coverage in the ipsilateral medulla (Nern et al., 2025. It has its soma ventral-medial to the antennal lobe and is a putative embryonic-born neuron (Schlegel et al., 2024; Dorkenwald et al., 2024. Its main process extends posteriodorsally from the soma, close to the esophageal foramen, then bifurcates in the posterior brain, projecting to both optic lobes (Busch et al., 2009; Dorkenwald et al., 2024; Schlegel et al., 2024; Nern et al., 2025. In the central brain, it receives input in the ipsilateral inferior and superior posterior slope, and the gnathal ganglion (Schlegel et al., 2024; Dorkenwald et al., 2024. There are two of these cells per hemisphere (Nern et al., 2025. (Dorkenwald et al., 2024, Busch et al., 2009)

Neurotransmitter not confirmed by immunostaining by Busch et al., 2009. Identified in EM data in Nern et al., 2025 and Schlegel et al., 2024 and predicted to be octopaminergic.

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Classification

Relationships

Alternative Names

Synonym Scope Reference
OA-AL2b2 related synonym Bates et al., 2025, name_in_banc, Schlegel et al., 2024
MeVCMe1 related synonym Berg et al., 2025, Nern et al., 2025
OA-AL2b2 exact synonym Busch et al., 2009
aMe14b exact synonym Scheffer et al., 2020

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Image files aligned to MeVCMe1_L (MaleCNS:10255):

Image files aligned to MeVCMe1_L (MaleCNS:10107):

Image files aligned to OA-AL2b2:

Image files aligned to OA-AL2b2:

Image files aligned to OA-AL2b2:

Image files aligned to OA-AL2b2:

Image files aligned to MeVCMe1_L (JRC_OpticLobe:10255):

Image files aligned to MeVCMe1_R (JRC_OpticLobe:10222):

Image files aligned to MeVCMe1_R (JRC_OpticLobe:10428):

Image files aligned to MeVCMe1_L (MaleCNS:10107):

Graphs For

References