FB2026_02 , released June 18, 2026
Allele: Dmel\Abd-BCst
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General Information
Symbol
Dmel\Abd-BCst
Species
D. melanogaster
Name
Corset
FlyBase ID
FBal0033311
Feature type
allele
Associated gene
Dmel\Abd-B
Associated Insertion(s)
Carried in Construct
Key Links
Allele class

loss of function allele

gain of function allele

Mutagen
Nature of the Allele
Allele class

gain of function allele

(Crosby et al., 1993)

loss of function allele

(Crosby et al., 1993)
Mutagen
diepoxybutane
(Crosby et al., 1993)
Progenitor genotype
Cytology
Description

44.5kb deletion from coordinates +92 to +136.5.

(Crosby et al., 1993)
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Variant Molecular Consequences
Associated Sequence Data
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
 
UniProtKB/Swiss-Prot
    UniProtKB/TrEMBL
      Expression Data
      Reporter Expression
      Additional Information
      Statement
      Reference
       
      Marker for
      Reflects expression of
      Reporter construct used in assay
      Human Disease Associations
      Disease Ontology (DO) Annotations
      Models Based on Experimental Evidence ( 0 )
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 0 )
      Disease
      Interaction
      References
      Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
       
      Disease-implicated variant(s)
       
      Phenotypic Data
      Phenotypic Class
      Phenotype Manifest In
      Detailed Description
      Statement
      Reference

      Lethality acts in the embryonic-larval stages. Homozygotes show A4-A7 transformed to A6, and are semi-sterile. Heterozygous males show a transformation of A4 to a segment primarily A5 in character, though with some A6 characteristics. These males show no A7. Heterozygous females appear normal. Abd-BCst/Df(3R)P9 or Abd-BCst/Df(3R)StP234 animals usually die prior to pupation. Escapers have phenotypes similar to the homozygotes, however the transformed segments are less clearly A6 in character, being intermediate between A5 and A6. Abd-BCst/Abd-BStP16 or Abd-BCst/Abd-BStP8 show a much more extreme transformation of A6-A7 to A5, including a large abdominal segment 7. In females this transformation can only be observed in A7, which is larger than normal, having a sternite which exhibits the A3-A6 bristle pattern.

      (Crosby et al., 1993)
      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Phenotype Manifest In
      Additional Comments
      Genetic Interactions
      Statement
      Reference
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (0)
      Notes on Origin
      Discoverer
      Comments
      Comments

      The phenotype of Abd-BCst/+ closely resembles that of Abd-BMcp-1/Abd-BMcp-1.

      (Crosby et al., 1993)
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (2)
      Reported As
      Symbol Synonym
      Abd-BCst
      Name Synonyms
      Corset
      (Crosby et al., 1993)
      Secondary FlyBase IDs
        References (1)