FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult ensheathing glial cell ID (Ontology) FBbt:00100504 (Fly Anatomy)
Definition Glial cell of the adult central nervous system that elaborates along the outer surface of its associated neuropil. Glia of this class may also surround neuropil bundles such as commissures or tracts. There are over 1000 of these in the adult central nervous system, some of which are descendants of larval ensheathing glia (Pogodalla et al., 2021).[ FlyBase:FBrf0206543 FlyBase:FBrf0234767 FlyBase:FBrf0251788 ]
Also Known As "adult EG" ; "adult ensheathing neuropil associated glial cell" ; "adult fibrous lamellar neuropil associated glial cell" (for all, see Synonyms field below)
Comment
Links to External Ontologies
VFB:FBbt_00100504
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      22
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       7
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      14
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes  Insertions Constructs
 adult ensheathing glial cell (all annotations which use CV term, excluding "NOT" statements)      23      2     17      8     43
     adult ensheathing glial cell | conditional       3       --       --       --       3
     adult ensheathing glial cell | heat sensitive       2       --       --       --       1
     adult ensheathing glial cell | P-stage       8       --       --       1      3
     adult ensheathing glial cell | P-stage | increased number       3       --       --       --       2
     adult ensheathing glial cell | P-stage | somatic clone       1       --       --       --       --
Spanning Tree (Parents/Children)
Only view relationship:
neuropil glial cell
 |__ensheathing glial cell_____
 |__adult neuropil glial cell__|
adult CNS glial cell           |
 |__adult neuropil glial cell__|
                               adult ensheathing glial cell  171 rec.
                                |__adult central brain ensheathing glial cell 2 rec.
                                |   |__adult central brain synaptic neuropil ensheathing glial cell(+)
                                |   |__adult central brain tract neuropil ensheathing glial cell
                                |__adult optic lobe ensheathing glial cell 85 rec.
                                |   |__adult lamina marginal glial cell 34 rec.
                                |   |__adult lobula complex ensheathing glial cell
                                |   |__adult medulla ensheathing glial cell(+) 2 rec.
                                |   |__adult optic chiasma glial cell(+) 50 rec.
                                |__adult synaptic neuropil ensheathing glial cell 30 rec.
                                |   |__adult central brain synaptic neuropil ensheathing glial cell(+)
                                |   |__adult distal medulla ensheathing glial cell
                                |   |__adult inner optic chiasma giant glial cell 24 rec.
                                |   |__adult serpentine medulla ensheathing glial cell 1 rec.
                                |__adult tract neuropil ensheathing glial cell 14 rec.
                                    |__adult central brain tract neuropil ensheathing glial cell
                                    |__adult outer optic chiasma giant glial cell 8 rec.
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Is a ensheathing glial cell
adult neuropil glial cell
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Synonyms
  • "adult EG" EXACT[ FlyBase:FBrf0234767 ]
    "adult ensheathing neuropil associated glial cell" EXACT
    "adult fibrous lamellar neuropil associated glial cell" EXACT
    "adult neuropil ensheathing glial cell" EXACT
    "secondary ensheathing glia" NARROW[ FlyBase:FBrf0229106 ]
    "sEG" NARROW[ FlyBase:FBrf0229106 ]
Secondary IDs
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VFB:FBbt_00100504