FB2024_04 , released June 25, 2024
FB2024_04 , released June 25, 2024
CV Term Report
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General Information
Term gustatory receptor neuron of the labellum ID (Ontology) FBbt:00110887 (Fly Anatomy)
Definition Gustatory receptor neuron that innervates the adult labellum. It projects to distinct regions in the subesophageal zone, which include the anterior maxillary, posterior maxillary and labellar sensory centers, via specific terminal branches.[ FlyBase:FBrf0137194 FlyBase:FBrf0152351 FlyBase:FBrf0179508 FlyBase:FBrf0211916 FlyBase:FBrf0212834 ]
Comment The projections of sugar- and bitter-sensitive neurons are segregated in the subesophageal zone: sugar-sensitive neuron projections (identified by the expression of Gr5a) are more lateral and anterior than the bitter-sensitive projections (identified by the expression of Gr66a), divided into 2 connected zones either side of the midline, with the projection pattern of bitter-sensitive neurons occupying the central region (Wang et al., 2004). Carbon-dioxide-sensitive neurons from the medial taste pegs (identified in E409-GAL4 and NP107-GAL4) terminate in the AMS1 zone (Miyazaki and Ito, 2010). Bitter-sensitive neurons (identified with Gr32a-, Gr66a- and NV4-GAL4) terminate in PMS1-3 zones. Subsets of Gr66a-GAL4 positive neurons terminated in specific subareas of these zones Water-sensitive neurons (identified with NP1017-GAL4) and sugar-sensitive neurons (identified with Gr5a-GAL4) terminate in PMS4-5 zones (Miyazaki and Ito, 2010).
Links to Extrernal Ontologies
VFB:FBbt_00110887
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       2
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       4
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       2
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 Full annotation statements 
Relevant FlyBase reports
 Alleles  Genes Insertions Constructs
 gustatory receptor neuron of the labellum (all annotations which use CV term, excluding "NOT" statements)       2      1      8     13     16
Spanning Tree (Parents/Children)
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adult head
 |__adult labial sensory neuron______
nervous system                       |
 |__peripheral nervous system________|
gustatory receptor neuron            |
 |__adult gustatory receptor neuron__|
organ system subdivision             |
 |__peripheral nervous system________|
adult sensory neuron                 |
 |__adult labial sensory neuron______|
 |__adult gustatory receptor neuron__|
adult PNS neuron                     |
 |__adult labial sensory neuron______|
                                     gustatory receptor neuron of the labellum  60 rec.
                                      |__labellar taste bristle chemosensory neuron 31 rec.
                                      |   |__bitter-sensing neuron of labellar taste bristle(+) 8 rec.
                                      |   |__high salt-sensing neuron of labellar taste bristle(+) 6 rec.
                                      |   |__low salt-sensing neuron of labellar taste bristle(+) 3 rec.
                                      |   |__sugar-sensing neuron of labellar taste bristle(+) 4 rec.
                                      |   |__water-sensing neuron of labellar taste bristle 8 rec.
                                      |__labellar taste peg chemosensory neuron
                                          |__adult Ir56d neuron of labellar taste peg
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Is a adult labial sensory neuron
adult gustatory receptor neuron
Part of peripheral nervous system
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VFB:FBbt_00110887