FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term embryonic/larval carpet glial cell ID (Ontology) FBbt:00100529 (Fly Anatomy)
Definition Very large glial cell of the basal embryonic/larval eye disc that also extends through the optic stalk (Edwards and Meinertzhagen, 2010). There are two per eye disc, each covering approximately half of the differentiated part of the disc, with their nuclei generally being found at the posterior end of the imaginal disc, but always posterior to the differentiating neurons (Silies et al., 2007). The glial substrate formed by the carpet glia separates the basal-most migrating glia from the more apical ones (Silies et al., 2007). These cells migrate inwards to give rise to the adult carpet glial cells.[ FlyBase:FBrf0201162 FlyBase:FBrf0210316 FlyBase:FBrf0218414 ]
CommentCategorized as a retinal basal glial cell in accordance with Tsao et al. (2016) - FBrf0233599 and Chang et al. (2018) - FBrf0239891, since they first appear in the optic stalk, like other retinal basal glia (Choi et al., 1994).
Links to External Ontologies
VFB:FBbt_00100529
Annotations
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Direct annotations: records annotated with this exact term (child terms are NOT included)
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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Relevant FlyBase reports
 Alleles Insertions Constructs
 embryonic/larval carpet glial cell (all annotations which use CV term, excluding "NOT" statements)
     embryonic/larval carpet glial cell | heat sensitive
      --
     embryonic/larval carpet glial cell | somatic clone
      --
     embryonic/larval carpet glial cell | third instar larval stage
      --
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larval glial cell
 |__glial cell of eye-antennal disc_________________
embryonic/larval lateral glial cell                 |
 |__embryonic/larval PNS subperineurial glial cell__|
embryonic/larval subperineurial glial cell          |
 |__embryonic/larval PNS subperineurial glial cell__|
PNS subperineurial glial cell                       |
 |__embryonic/larval PNS subperineurial glial cell__|
larval PNS glial cell                               |
 |__larval retinal basal glial cell_________________|
 |__embryonic/larval PNS subperineurial glial cell__|
                                                    embryonic/larval carpet glial cell  21 rec.
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Is a larval retinal basal glial cell
embryonic/larval PNS subperineurial glial cell
glial cell of eye-antennal disc
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VFB:FBbt_00100529