FB2026_03 , released September 17, 2026
Allele: Dmel\twg1
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General Information
Symbol
Dmel\twg1
Species
D. melanogaster
Name
FlyBase ID
FBal0017296
Feature type
allele
Associated gene
twg
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

      Almost all external features are abnormal. Eyes are large, abnormally shaped and slightly rough. Wings vary from almost completely normal to small deformed structures with very abnormal venation. Macrochaetae are frequently waved or bent. Tergites are often notched in the mid-dorsal line. Genitalia are deformed and positioned abnormally on the tip of the abdomen. Male viability and fertility are reduced.

      (Fahmy and Fahmy, 1959)

      RK2. External genitalia abnormally positioned on extreme tip of abdomen. Tergites often notched at mid-dorsal line. Eyes large, abnormally shaped and slightly rough. Wings vary from almost normal to small, deformed structures with very abnormal venation. Bristles frequently waved or bent. Male viability and fertility subnormal.

      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
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (2)
      Reported As
      Symbol Synonym
      twg
      (Fahmy and Fahmy, 1959)
      twg1
      Name Synonyms
      Secondary FlyBase IDs
        References (1)