Tm5a [FBbt_00110072]

ID: FBbt_00110072

Adult Cholinergic Nervous system Visual system

Transmedullary Tm5 neuron that is centered on a single yellow column in the medulla and arborizes in the M3, M6 and M8 layers, reaching some neighboring columns laterally (Kind et al., 2021. It selectively receives input from the R7 (and not R8) photoreceptor of its central column (Kind et al., 2021. Its axon terminates in lobula layer 5B after a characteristic reversal of direction (Kind et al., 2021. It provides input to the lobula intrinsic neuron Li4 via many synapses, and also to the lobula tangential neuron LT11 (Lin et al., 2016. It is a cholinergic neuron (Karuppudurai et al., 2014. (Karuppudurai et al., 2014, Kind et al., 2021, Fischbach and Dittrich, 1989, Gao et al., 2008, Lin et al., 2016)

Connectivity in the medulla inferred from EM reconstructions (Gao et al., 2008; Kind et al., 2021. The neurotransmitter was assessed by immunohistochemistry (Karuppudurai et al., 2014. Connectivity in the lobula was assessed by GRASP and double-labeling EM (Lin et al., 2016.

Classification

receives synaptic input from neuron: photoreceptor cell R7 of yellow ommatidium
receives synaptic input in region: medulla layer M8, yellow optic column
sends synaptic output to cell: lobula intrinsic neuron Li4, lobula tangential neuron LT11
sends synaptic output to region: lobula layer 5B

Synonym	Scope	Reference
Tm5a	related synonym	Berg et al., 2025, Bates et al., 2025, Nern et al., 2025, Schlegel et al., 2024, name_in_male-cns
Tm5a	exact synonym	Özel et al., 2021

Image files aligned to Tm5a_L (MaleCNS:176652):

Image files aligned to Tm5a_R (MaleCNS:122392):

Image files aligned to Tm5a_L (MaleCNS:26765):

Image files aligned to Tm5a_R (MaleCNS:99658):

Image files aligned to Tm5a_L (MaleCNS:84953):

Image files aligned to Tm5a:

Image files aligned to Tm5a_R (JRC_OpticLobe:121958):

Image files aligned to Tm5a_L (MaleCNS:176652):

Image files aligned to Tm5a_L (MaleCNS:26765):

Image files aligned to Tm5a_R (MaleCNS:99658):