FB2026_02 , released June 18, 2026
Allele: Dmel\sno1
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General Information
Symbol
Dmel\sno1
Species
D. melanogaster
Name
FlyBase ID
FBal0015914
Feature type
allele
Associated gene
Dmel\sno
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
ethyl methanesulfonate
(Lefevre and Peterson, 1972)
Progenitor genotype
Cytology

Polytene chromosomes normal.

(Lefevre and Peterson, 1972)
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

      At the permissive temperature males exhibit strongly notched wings, thickened Confluens-like wing veins, prominent deltas at the junctions of the longitudinal wings veins with the margin, extra hairs on the thorax and legs, shortened tarsal joints and roughened, shiny, somewhat mottled eyes. All macrochaetes are thin and delicate. At 29oC pupae fail to emerge from the pupal case. Not suppressed by: Dp(1;2)51b. Mutants still die at the restrictive temperature.

      (Lefevre and Peterson, 1972)

      temperature-sensitive lethal;

      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Other
      Statement
      Reference

      Nfa-g, sno1 has lethal phenotype

      (Lefevre and Peterson, 1972)

      Nspl-1, sno1 has lethal phenotype

      (Lefevre and Peterson, 1972)
      Phenotype Manifest In
      Additional Comments
      Genetic Interactions
      Statement
      Reference

      Partially suppressed by Dp(1;2)51b. Mutants exhibit near wild type phenotype: small deltas remain, there is some thoracic hairiness and the eyes are not completely smooth. Partially suppressed by Dp(1;2;Y)w+. Males carrying Nfa-g and sno1 show an exaggerated phenotype: have difficulty in eclosion and survive only briefly. Combination with Nspl-1 is less drastic.

      (Lefevre and Peterson, 1972)
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (0)
      Notes on Origin
      Discoverer

      Lefevre, May 1971.

      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (3)
      Reported As
      Symbol Synonym
      g-l
      (Lefevre and Peterson, 1972)
      sno1
      sno71e
      Name Synonyms
      Secondary FlyBase IDs
        References (3)