FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term embryonic/larval peritracheal cell ID (Ontology) FBbt:00006017 (Fly Anatomy)
Definition Cell located at the branch points of the embryonic or larval trachea. It is part of a bilaterally-symmetrical, segmentally-repeated cluster of three cells that are connected by cytoplasmic processes (Laneve et al., 2013). These clusters are found in six abdominal segments, one to three thoracic segments and the head region (Laneve et al., 2013). One cell per cluster is a non-neuronal peptidergic cell (PM cell), which shows a complex morphology and extends several cytoplasmic processes. The PM cell is located on the main dorsal trunk trachea and the non-peptidergic cells (PMa cells) are located on the transverse tracheal connective (O'Brien and Taghert, 1998; Laneve et al., 2013).[ FlyBase:FBrf0057603 FlyBase:FBrf0100681 FlyBase:FBrf0158877 FlyBase:FBrf0220777 ]
Also Known As"embryonic/larval PT cell" ; "larval peritracheal cell"
CommentThese three-cell clusters can be identified by expression of gcm (Laneve et al., 2013).
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
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 embryonic/larval peritracheal cell (all annotations which use CV term, excluding "NOT" statements)
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larva
 |__larval tracheal system__
tracheal system             |
 |__larval tracheal system__|
 |__peritracheal cell_______|
somatic cell                |
 |__peritracheal cell_______|
                            embryonic/larval peritracheal cell  14 rec.
                             |__embryonic/larval peritracheal PM cell 4 rec.
                             |__embryonic/larval peritracheal PMa cell
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Is a peritracheal cell
Part of larval tracheal system
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