FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term histoblast ID (Ontology) FBbt:00001789 (Fly Anatomy)
Definition A progenitor cell found in the larval epidermis that produces the adult external abdomen. These cells are part of the larval epidermis, secrete cuticle and contribute to larval epithelial patterning. They can be distinguished from the larval epidermal cells due to their small size and the fact that they remain diploid (Martinez Arias, 1993).[ FlyBase:FBrf0064786 ]
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      23
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      15
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      12
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Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 histoblast (all annotations which use CV term, excluding "NOT" statements)      25      9      1     18     17
     histoblast | male limited       2       --       --       --       1
     histoblast | somatic clone       8       --       --       --       8
Spanning Tree (Parents/Children)
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developing material anatomical entity
 |__somatic precursor cell______
ectodermal derivative           |
 |__dorsal ectoderm derivative__|
somatic cell                    |
 |__somatic precursor cell______|
                                histoblast  70 rec.
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Is a somatic precursor cell
dorsal ectoderm derivative
Develops from abdominal histoblast primordium
Part of histoblast nest
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Synonyms
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CL:0000373