FB2026_03 , released September 17, 2026
CV Term Report
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Term Johnston organ neuron ID (Ontology) FBbt:00100000 (Fly Anatomy)
Definition Scolopidial (mechanosensory) neuron of Johnston's organ (JO). Its axon innervates the ipsilateral antennal mechanosensory and motor center (AMMC). A small number of fibers also innervate the contralateral AMMC via the commissure of JON. Subset of JO neurons extend into the ventral region of the ventrolateral protocerebrum and posterior part of the subesophageal ganglion. They are cholinergic and a subset are glutamatergic (Ishikawa et al., 2017).[ FlyBase:FBrf0083230 FlyBase:FBrf0194812 FlyBase:FBrf0236066 ]
Also Known As"Johnston's organ neuron" ; "JON"
CommentBelieved to be cholinergic on the basis of expression of a (ChAT)-lacZ fusion gene (Kitamoto et al., 1995).
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VFB:FBbt_00100000
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Genes  Insertions Constructs
 Johnston organ neuron (all annotations which use CV term, excluding "NOT" statements)
     Johnston organ neuron | adult stage
      --       --
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Vocabulary search 
sensory organ cell
 |__adult antennal sensory neuron__
chordotonal neuron                 |
 |__adult chordotonal neuron_______|
cholinergic neuron                 |
 |__adult cholinergic neuron_______|
adult neuron                       |
 |__adult cholinergic neuron_______|
adult mechanosensory neuron        |
 |__adult chordotonal neuron_______|
adult sensory neuron               |
 |__adult antennal sensory neuron__|
adult PNS neuron                   |
 |__adult antennal sensory neuron__|
 |__adult chordotonal neuron_______|
                                   Johnston organ neuron  134 rec.
                                    |__grooming behavior Johnston organ neuron
                                    |__Johnston organ neuron activated by antennal displacement 10 rec.
                                    |   |__Johnston organ neuron tonically activated by arista deflection(+) 3 rec.
                                    |   |__sound activated Johnston organ neuron 4 rec.
                                    |__Johnston organ neuron inhibited by antennal displacement
                                    |__multiple zone Johnston organ neuron 15 rec.
                                    |   |__Johnston organ neuron DA
                                    |   |__zone C/E Johnston organ neuron(+) 15 rec.
                                    |__zone A Johnston organ neuron 18 rec.
                                    |   |__Johnston organ neuron AA/AP/AV1/AV2
                                    |   |__Johnston organ neuron AA/AP/AV2
                                    |   |__Johnston organ neuron AA/AP/AV2/AD
                                    |   |__Johnston organ neuron AA/AV1/AD
                                    |   |__Johnston organ neuron AA/AV1/AV2
                                    |   |__Johnston organ neuron AA/AV2
                                    |   |__Johnston organ neuron AA/AV2/AD
                                    |   |__Johnston organ neuron AP/AD
                                    |   |__Johnston organ neuron AP/AV1/AD
                                    |   |__Johnston organ neuron AP/AV1/AV2
                                    |   |__Johnston organ neuron AP/AV2
                                    |   |__Johnston organ neuron AP/AV2/AD
                                    |   |__Johnston organ neuron AV1
                                    |   |__Johnston organ neuron AV1/AD
                                    |   |__Johnston organ neuron AV1/AV2
                                    |   |__Johnston organ neuron AV2
                                    |   |__Johnston organ neuron AV2/AD
                                    |   |__Johnston organ neuron DA
                                    |   |__zone A Johnston organ neuron type 1(+)
                                    |   |__zone A Johnston organ neuron type 2
                                    |   |__zone A Johnston organ neuron type 3
                                    |__zone B Johnston organ neuron 9 rec.
                                    |   |__Johnston organ neuron b1
                                    |   |__Johnston organ neuron DA
                                    |   |__zone B Johnston organ neuron type 1
                                    |   |__zone B Johnston organ neuron type 2
                                    |   |__zone B Johnston organ neuron type 3
                                    |   |__zone B Johnston organ neuron type 4
                                    |__zone C Johnston organ neuron 27 rec.
                                    |   |__Johnston organ neuron CA
                                    |   |__Johnston organ neuron CL
                                    |   |__Johnston organ neuron CM
                                    |   |__zone C/E Johnston organ neuron(+) 15 rec.
                                    |__zone D Johnston organ neuron 4 rec.
                                    |   |__Johnston organ neuron DA
                                    |   |__Johnston organ neuron DP
                                    |__zone E Johnston organ neuron 27 rec.
                                    |   |__Johnston organ neuron e1
                                    |   |__Johnston organ neuron e2
                                    |   |__Johnston organ neuron EDC
                                    |   |__Johnston organ neuron EDM
                                    |   |__Johnston organ neuron EDP(+)
                                    |   |__Johnston organ neuron EV
                                    |   |__Johnston organ neuron EVL
                                    |   |__Johnston organ neuron EVM
                                    |   |__Johnston organ neuron EVP
                                    |   |__zone C/E Johnston organ neuron(+) 15 rec.
                                    |__zone F Johnston organ neuron 9 rec.
                                        |__Johnston organ neuron FDA
                                        |__Johnston organ neuron FDL
                                        |__Johnston organ neuron FDP
                                        |__Johnston organ neuron FVA
                                        |__Johnston organ neuron FVL
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Is a adult antennal sensory neuron
adult cholinergic neuron
adult chordotonal neuron
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VFB:FBbt_00100000