FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term larval gnathal ganglion ID (Ontology) FBbt:00100138 (Fly Anatomy)
Definition Region of the embryonic/larval central nervous system consisting of the neuromeres of the three gnathal segments; mandibular, maxillary and labial (Hartenstein et al., 2018). Compared to thoracic and abdominal neuromeres, the number and size of primary lineages are decreased in the labial neuromere, and decrease further in each successive anterior gnathal neuromere (Rickert et al., 2018). It is found in the subesophageal zone, between the tritocerebrum and the prothoracic neuromere (Hartenstein et al., 2018). It separates from the prothoracic neuromere during metamorphosis (Kendroud et al., 2018).[ FlyBase:FBrf0007733 FlyBase:FBrf0134489 FlyBase:FBrf0237251 FlyBase:FBrf0237252 FlyBase:FBrf0238045 FlyBase:FBrf0247585 ]
Also Known As"embryonic/larval gnathal ganglion" ; "embryonic/larval SOG" ; "embryonic/larval subesophageal ganglion" (for all, see Synonyms field below)
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VFB:FBbt_00100138
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 Alleles Split System Combinations Genes Insertions Constructs
 larval gnathal ganglion (all annotations which use CV term, excluding "NOT" statements)
     larval gnathal ganglion | embryonic stage 15
      --       --       --       --
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larval central nervous system
 |__larval subesophageal zone__
ganglion                       |
 |__gnathal ganglion___________|
subesophageal zone             |
 |__gnathal ganglion___________|
 |__larval subesophageal zone__|
                               larval gnathal ganglion  91 rec.
                                |__cell body rind of larval gnathal ganglion
                                |   |__cell body rind of larval labial neuromere
                                |   |__cell body rind of larval mandibular neuromere
                                |   |__cell body rind of larval maxillary neuromere
                                |__embryonic/larval subesophageal ganglion area 1
                                |__embryonic/larval subesophageal ganglion area 2
                                |__embryonic/larval subesophageal ganglion area 3
                                |__embryonic/larval subesophageal ganglion area 4
                                |__larval gnathal A-subperineurial glial cell
                                |__larval gnathal ganglion commissure
                                |   |__larval labial anterior commissure
                                |   |__larval labial posterior commissure(+)
                                |   |__larval labial posterior dorsal commissure
                                |   |__larval labial posterior intermediate commissure
                                |   |__larval mandibular posterior commissure
                                |   |__larval maxillary posterior commissure(+)
                                |   |__larval maxillary posterior dorsal commissure
                                |   |__larval maxillary posterior intermediate commissure
                                |   |__maxillary anterior commissure
                                |__larval gnathal neuromere 1 rec.
                                    |__larval labial neuromere(+)
                                    |__larval mandibular neuromere(+)
                                    |__larval maxillary neuromere(+)
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Is a gnathal ganglion
Part of larval subesophageal zone
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Synonyms
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larvalbrain_neuropil:389
larvalbrain_neuropil:567
VFB:FBbt_00100138