FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term proboscis ID (Ontology) FBbt:00004535 (Fly Anatomy)
Definition The trunk-like extension of adult head, forming a protrusible sucking proboscis for the ingestion of liquid food (pg 425 Miller et al., 1950; pg 383, Ferris et al., 1950).[ FlyBase:FBrf0007734 FlyBase:FBrf0007735 ]
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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
 proboscis (all annotations which use CV term, excluding "NOT" statements)
     proboscis | absent
      --
      --
     proboscis | cell autonomous | somatic clone
      --       --       --
     proboscis | ectopic | temperature conditional
      --       --
     proboscis | heat sensitive
      --       --
     proboscis | posterior | somatic clone
      --       --       --
     proboscis | progressive
      --       --
     proboscis | somatic clone
      --       --       --
     proboscis | temperature conditional
      --       --       --
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adult external head
 |__mouthpart____________________
ectodermal derivative            |
 |__ventral ectoderm derivative__|
multicellular structure          |
 |__mouthpart____________________|
 |__organism subdivision_________|
                                 proboscis  853 rec.
                                  |__adult pharynx 40 rec.
                                  |   |__adult cibarium(+) 33 rec.
                                  |   |__adult epipharynx
                                  |   |__adult hypopharynx(+) 14 rec.
                                  |__apodeme of rostrum-haustellum joint 7 rec.
                                  |   |__anterior arm of apodeme of rostrum-haustellum joint
                                  |   |__dorsal arm of apodeme of rostrum-haustellum joint
                                  |   |__ventroposterior arm of apodeme of rostrum-haustellum joint 4 rec.
                                  |__distiproboscis 425 rec.
                                  |   |__labellum(+) 416 rec.
                                  |__haustellum 62 rec.
                                  |   |__haustellum bristle
                                  |   |__labrum(+) 44 rec.
                                  |   |__mentum 3 rec.
                                  |   |__prementum 5 rec.
                                  |   |__proboscis muscle 5(+) 3 rec.
                                  |   |__proboscis muscle 8(+) 4 rec.
                                  |__proboscis joint
                                  |   |__head-rostrum joint
                                  |   |__rostrum-haustellum joint
                                  |__proboscis muscle 3 3 rec.
                                  |   |__muscle cell of proboscis muscle 3(+) 3 rec.
                                  |   |__proboscis muscle 3 lateral fiber(+)
                                  |   |__proboscis muscle 3 medial fiber(+)
                                  |__proboscis muscle 12 ventral
                                  |   |__muscle cell of proboscis muscle 12 ventral
                                  |__rostrum 325 rec.
                                      |__adult cibarium(+) 33 rec.
                                      |__adult maxillary structure
                                      |__apodeme of rostrum
                                      |__clypeus 13 rec.
                                      |__lacinia 3 rec.
                                      |__maxillary palp(+) 288 rec.
                                      |__proboscis muscle 4(+) 4 rec.
                                      |__proboscis muscle 10(+) 3 rec.
                                      |__proboscis muscle 11 dorsal(+) 4 rec.
                                      |__proboscis muscle 11 ventral(+)
                                      |__proboscis muscle 12 dorsal(+) 3 rec.
                                      |__proboscis muscle 13(+) 5 rec.
                                      |__salivary stylet 3 rec.
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Is a organism subdivision
ventral ectoderm derivative
Develops from labial disc
Part of mouthpart
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https://www.ento.csiro.au/biology/drosophila/melanogaster.html?proboscis
UBERON:6004535