FB2026_02 , released June 18, 2026
Allele: Dmel\ss1
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General Information
Symbol
Dmel\ss1
Species
D. melanogaster
Name
FlyBase ID
FBal0016090
Feature type
allele
Associated gene
Dmel\ss
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
spontaneous
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

      Reduction in size of all bristles, 'spineless' phenotype.

      (Melnick et al., 1993)

      No effect on geotaxis as measured in a Hirsch-type geotaxis maze.

      (McMillan and McGuire, 1992)

      Bristles only a little larger than hairs; dorsocentrals least reduced; postscutellars erect. No effect on legs or aristae. Growth of bristles slows during development (Lees and Waddington, 1943). Dominant to aristapedia phenotype of all ssa alleles. RK1.

      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Phenotype Manifest In
      Enhanced by
      Statement
      Reference

      ss1 has phenotype, enhanceable by sta1

      (Melnick et al., 1993)
      NOT suppressed by
      Statement
      Reference

      ss1 has phenotype, non-suppressible by su(Hw)2

      (Lindsley and Grell, 1968)
      Additional Comments
      Genetic Interactions
      Statement
      Reference
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (1)
      Stocks (44)
      Notes on Origin
      Discoverer

      Bridges, 3rd Jan. 1914.

      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (1)
      Reported As
      Symbol Synonym
      ss1
      (Miller et al., 2020, Johnston and Desplan, 2014)
      Name Synonyms
      Secondary FlyBase IDs
        References (8)