FB2024_03 , released June 25, 2024
FB2024_03 , released June 25, 2024
CV Term Report
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General Information
Term larval A27j neuron ID (Ontology) FBbt:00111666 (Fly Anatomy)
Definition Neuron of the larval abdominal neuromere that is part of lineage 27. Its primary neurite extends from the dorsolateral edge of the ventral nerve cord medially, and then follows the midline ventrally. It receives substantial input from the ipsilateral A02a, A27e, contralateral A31k neuron, dorsal multidendritic neuron dda1, ddaD (Schneider-Mizell et al., 2016). It has strong outputs to the larval A27e (axo-axonic connection) and ipsilateral A1-7 dorsal motor neuron (Schneider-Mizell et al., 2016). It is a GABAergic neuron (Schneider-Mizell et al., 2016). It may be involved in avoidance behavior (Vogelstein et al., 2014).[ FlyBase:FBrf0224808 FlyBase:FBrf0231328 ]
Comment These neurons were identified in a EM reconstruction of a volume that includes the posterior half of abdominal segment 2 and abdominal segment 3, of a 12-24h old first instar larva. The number of connections was estimated from the publication figures. The number of input synapses was the following (number in brackets left/right where available; ipsi- and contralateral connections separated by comma): from A02a (15/10), A27e (15), A31k (10/8), dda1 (21), ddaD (21), ddaE (7). The number of output synapses was the following: to A27e (18), A1-7 dorsal motor neuron (12/25) (Schneider-Mizell et al., 2016). This is one of three types of neuron that express R25B07, it is not clear which is/are responsible for turning and crawling behavior (Vogelstein et al., 2014).
Links to Extrernal Ontologies
VFB:FBbt_00111666
Annotations
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
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 Alleles Insertions Constructs
 larval A27j neuron (all annotations which use CV term, excluding "NOT" statements)       1      3      2
Spanning Tree (Parents/Children)
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embryonic/larval neuron
 |__larval premotor neuron_______________
 |__larval GABAergic neuron______________|
embryonic/larval central nervous system  |
 |__larval interneuron___________________|
neuron                                   |
 |__abdominal neuron_____________________|
interneuron                              |
 |__larval interneuron___________________|
 |__primary interneuron__________________|
GABAergic neuron                         |
 |__larval GABAergic neuron______________|
sensory system neuron                    |
 |__proprioceptive system neuron_________|
primary neuron                           |
 |__primary interneuron__________________|
premotor neuron                          |
 |__larval premotor neuron_______________|
proprioceptive system                    |
 |__proprioceptive system neuron_________|
larval CNS neuron                        |
 |__larval interneuron___________________|
                                         larval A27j neuron  6 rec.
                                          |__larval abdominal 1 A27j neuron
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Is a abdominal neuron
larval premotor neuron
larval interneuron
proprioceptive system neuron
primary interneuron
larval GABAergic neuron
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VFB:FBbt_00111666