FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term larval B-subperineurial glial cell ID (Ontology) FBbt:00001276 (Fly Anatomy)
Definition Large subperineural glial cell that sits over the posterior commissure just medial to the longitudinal connectives (Klambt and Goodman, 1991; Ito et al., 1995). It sends processes in three directions: medially to the midline, anteriorly and posteriorly (Ito et al., 1995). Unlike the A-subperineural glial cell, the B-subperineural glial cell is only found in abdominal neuromeres, and lies at approximately the center of the segment along the antero-posterior axis (Ito et al., 1995). It develops from neuroblast NB1-1 of the abdomen (Beckervordersandforth et al., 2008).[ FlyBase:FBrf0054242 FlyBase:FBrf0057603 FlyBase:FBrf0205499 FlyBase:FBrf0214261 ]
Also Known As"B glial cell of abdomen" ; "B-SPG" ; "B-subperineurial glial cell of abdomen"
Comment
Links to External Ontologies
VFB:FBbt_00001276
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Genes Insertions Constructs
 larval B-subperineurial glial cell (all annotations which use CV term, excluding "NOT" statements)
     larval B-subperineurial glial cell | ectopic
      --       --
     larval B-subperineurial glial cell | ectopic | heat sensitive
      --       --
     larval B-subperineurial glial cell | increased number
      --       --       --
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larval ventral nerve cord
 |__larval abdominal neuromere______________________
larval abdominal segment                            |
 |__larval abdominal neuromere______________________|
larval neuromere                                    |
 |__larval abdominal neuromere______________________|
larval central nervous system                       |
 |__embryonic/larval CNS subperineurial glial cell__|
abdominal neuromere                                 |
 |__larval abdominal neuromere______________________|
CNS subperineurial glial cell                       |
 |__embryonic/larval CNS subperineurial glial cell__|
ectodermal derivative                               |
 |__ventral ectoderm derivative_____________________|
embryonic/larval lateral glial cell                 |
 |__embryonic/larval CNS subperineurial glial cell__|
embryonic/larval subperineurial glial cell          |
 |__embryonic/larval CNS subperineurial glial cell__|
                                                    larval B-subperineurial glial cell  28 rec.
                                                     |__larval abdominal 1 B-subperineurial glial cell 1 rec.
                                                     |__larval abdominal 2 B-subperineurial glial cell
                                                     |__larval abdominal 3 B-subperineurial glial cell
                                                     |__larval abdominal 4 B-subperineurial glial cell
                                                     |__larval abdominal 5 B-subperineurial glial cell
                                                     |__larval abdominal 6 B-subperineurial glial cell
                                                     |__larval abdominal 7 B-subperineurial glial cell
                                                     |__larval abdominal 8 B-subperineurial glial cell
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Is a embryonic/larval CNS subperineurial glial cell
ventral ectoderm derivative
Develops from abdominal neuroblast NB1-1
Part of larval abdominal neuromere
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Synonyms
Secondary IDs
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VFB:FBbt_00001276