larval LT2/LT3 motor neuron [FBbt_00110264]

Larval motor neuron that develops from NB2-2 and innervates the lateral transverse muscles 2 and 3 via type Ib boutons (Landgraf et al., 1997; Schmid et al, 1999; Hoang and Chiba, 2001; Kim et al., 2009; Wang et al., 2022). It arborizes in the ipsilateral neuropil, and its axon fasciculates with the ipsilateral segmental nerve, innervating muscles of the same segment as its soma (Landgraf et al., 1997; Schmid et al, 1999; Hoang and Chiba, 2001; Kim et al., 2009).
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larval LT2/LT3 motor neuron

ID: FBbt_00110264

Larva Motor neuron lineage 10 NB2-2 primary neuron

Larval motor neuron that develops from NB2-2 and innervates the lateral transverse muscles 2 and 3 via type Ib boutons (Landgraf et al., 1997; Schmid et al, 1999; Hoang and Chiba, 2001; Kim et al., 2009; Wang et al., 2022). It arborizes in the ipsilateral neuropil, and its axon fasciculates with the ipsilateral segmental nerve, innervating muscles of the same segment as its soma (Landgraf et al., 1997; Schmid et al, 1999; Hoang and Chiba, 2001; Kim et al., 2009).

Identified only as LT2-innervating in Landgraf et al. (1997), subsequent studies find only one LT2 neuron other than the LT1 neuron, which also innervates LT3 and has similar (ipsilateral and SNa) morphology (Hoang and Chiba, 2001; Kim et al., 2009; Wang et al., 2022). (A different) Wang et al. (2022) - FBrf0254149 claim that the NB3-3 motor neuron innervates 23/24 (LT2/3) but do not show innervation.

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
MSI1,2 broad synonym Schmid et al., 1999
MN-LT2 exact synonym Landgraf et al., 1997
MN22/23-Ib exact synonym Hoang and Chiba, 2001
LT2/LT3 motor neuron exact synonym Zarin et al., 2019