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General Information
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| Term |
T4 neuron |
ID (Ontology) |
FBbt:00003731 (Fly Anatomy) |
| Definition |
T neuron with its cell body posterior to the lobula plate and a cell body fiber that projects through the lobula plate and via the second optic chiasma, with little or no arborization, to medulla layer 10 (Fischbach and Dittrich, 1989; Shinomiya et al., 2019). It forms a fine arborization in medulla layers M9 and M10 and its axon then doubles back across the second optic chiasma to form bleb-type arborizations in a single layer of the lobula plate (Fischbach and Dittrich, 1989; Shinomiya et al., 2019). It is a cholinergic neuron (Mauss et al., 2014; Shinomiya et al., 2014). There are a large number of these cells, which are generated from neuroblasts that amplify by symmetric division (type III) before generating the T4 (and T5) neurons (Mora et al., 2018).[ FlyBase:FBrf0049410 FlyBase:FBrf0222324 FlyBase:FBrf0224060 FlyBase:FBrf0225094 FlyBase:FBrf0238554 FlyBase:FBrf0243899 ] |
| Also Known As |
"T neuron T4" ; "T4" |
| Comment |
Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB. The neurotransmitter was assessed with a split-GAL4 strategy using a Chat-DBD allele (FBal0198074) (Mauss et al., 2014) and single-cell transcript profiling (Shinomiya et al., 2014). |
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Links to Extrernal Ontologies
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VFB:FBbt_00003731
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Annotations
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Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
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| Data Class | Field | Records |
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| Alleles (FBal) | PHENOTYPE_MANIFEST_IN | 3 | | Insertions (FBti) | EXPRESSION_STAGE_TISSUE_POSITION | 2 | | Insertions (FBti) | PHENOTYPE_MANIFEST_IN | 1 | | Constructs (FBtp) | PHENOTYPE_MANIFEST_IN | 1 |
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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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| Full annotation statements | Relevant FlyBase reports |
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| Alleles | | Genes | Insertions | Constructs |
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T4 neuron (all annotations which use CV term, excluding "NOT" statements) | 6 | 10 | 3 | 3 | 28 | T4 neuron | adult stage | 2 | -- | -- | 1 | -- | T4 neuron | somatic clone | third instar larval stage | 2 | -- | -- | -- | 1 |
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Relationships