FB2026_02 , released June 18, 2026
Allele: Dmel\Bpt1
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General Information
Symbol
Dmel\Bpt1
Species
D. melanogaster
Name
FlyBase ID
FBal0029056
Feature type
allele
Associated gene
Bpt
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
ethyl methanesulfonate
(Duus et al., 1992)
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
      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Phenotype Manifest In
      Other
      Statement
      Reference

      Bpt1, Nfa-g, wa has eye phenotype

      (Duus et al., 1992)

      Bpt1, Nfa-g, wa has larval brain phenotype

      (Duus et al., 1992)

      Bpt1, Nfa-g, wa has adult optic lobe phenotype

      (Duus et al., 1992)
      Additional Comments
      Genetic Interactions
      Statement
      Reference

      wa, Nfa-g; Bpt1 show neural degeneration in the eye and in the optic lobe of the adult brain that produces a dark, necrotic eye spot in the adult eye. Some individuals die as pharate adults: optic lobes of the brain are missing. A few individuals die suddenly during the first 24 hours after eclosion. The Bpt1 eye spot phenotype is only produced in individuals with a facet phenotype: a threshold of severity of the facet mutant phenotype is necessary to produce the Bpt1 eye spot phenotype.

      (Duus et al., 1992)
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (1)
      Notes on Origin
      Discoverer
      Comments
      Comments

      Incomplete penetrance; greater in females, and variable expressivity.

      (Duus et al., 1992)
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (1)
      Reported As
      Symbol Synonym
      Bpt1
      Name Synonyms
      Secondary FlyBase IDs
        References (1)