FB2026_02 , released June 18, 2026
Allele: Dmel\crmswa
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General Information
Symbol
Dmel\crmswa
Species
D. melanogaster
Name
FlyBase ID
FBal0001840
Feature type
allele
Associated gene
Dmel\crm
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
2-chloroethyl methanesulfonate
(Fahmy and Fahmy, 1959)
Progenitor genotype
Cytology
Description
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

      Antennae are very swollen and deformed. Aristae are abnormal. Eyes are slightly pear shaped. Wings are upheld to various degrees and are frequently incised on the inner margins. Small additional sex combs are present on the 2nd tarsal segments of the forelegs in most males. Males are late in eclosion, fertile and rather inviable. Females are sterile. Eye colour: browner than normal. Body colour: slightly more melanised than normal.

      (Fahmy and Fahmy, 1959)

      Antennae swollen and deformed; aristae abnormal; eyes slightly rough, pear shaped, and browner than normal; wings often upheld and frequently incised on the inner margins; small extra sex combs on second tarsal segments of forelegs of most males. Male emerges late. Body colour: dark. RK2.

      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

      Allelism inferred from missing-bristle phenotype of escapers; could be allelic to l(1)3Bf instead.

      Images (0)
      Mutant
      Wild-type
      Stocks (0)
      Notes on Origin
      Discoverer

      Fahmy, 1956.

      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (2)
      Reported As
      Symbol Synonym
      crmswa
      swa
      (Fahmy and Fahmy, 1959)
      Name Synonyms
      Secondary FlyBase IDs
        References (2)