larval Jaam3 neuron FBbt_00111658

larval Jaam3 neuron

ID: FBbt_00111658

Interneuron of the larval ventral nerve cord (Heckscher et al., 2015 that is late-born in the NB5-2 Notch OFF primary hemilineage (Mark et al., 2021. The primary neurite extends into the neuropil forming one arbor that extends anteriorly (Heckscher et al., 2015. One neurite crosses the midline and forms a broad arbor that extends anteriolaterally and overlaps with the dendrites of the A08e1 local neuron, to which it outputs (Heckscher et al., 2015. It also forms substantial synapses to Jaam1 (Heckscher et al., 2015. It receives strong input from dorsal proprioceptive multidendritic neurons and the dorsal bipolar neuron (dbp) (Heckscher et al., 2015. There is one of these neuron per hemineuromere (Heckscher et al., 2015. (Heckscher et al., 2015, Mark et al., 2021)

These neurons were identified in two EM reconstructions: one of the full CNS of a 6h old first instar larva, and another of abdominal segment 3 of a 12-24h old first instar larva. Only bilateral connections are reported. The number of identified input synapses in A1 was the following (number in brackets left/right): from dbp (9/11), from ddaD/ddaE/dda1 (35/40). The number of identified output synapses was the following (number in brackets left/right): to Jaam1 (19/18), to A08e1 (12/18). It is still not known if the pattern of connections is the same in the other abdominal segments (Heckscher et al., 2015. HMD3 and A12c3 synonyms from catmaid.