FB2026_02 , released June 18, 2026
Allele: Dmel\Gr22eLL05566
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General Information
Symbol
Dmel\Gr22eLL05566
Species
D. melanogaster
Name
FlyBase ID
FBal0346699
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
Gr22e1
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Genomic Maps

Allele class
Mutagen
    Nature of the Allele
    Allele class
    Mutagen
    Progenitor genotype
    Associated Insertion(s)
    Cytology
    Description
    Allele components
    Component
    Use(s)
    Mutations Mapped to the Genome
    Curation Data
    Variant Molecular Consequences
    Associated Sequence Data
    DNA sequence
    Protein sequence
     
    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
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    Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
     
    Disease-implicated variant(s)
     
    Phenotypic Data
    Phenotypic Class
    Phenotype Manifest In
    Detailed Description
    Statement
    Reference

    Gr22eLL05566 mutant flies do not show significant changes in the expected avoidance response to food laced with acetic acid (5%), as compared to controls.

    Gr22eLL05566 mutants show significantly reduced S-b sensilla responsiveness to the bitter chemicals LOB, BER, DEN, STR and SOA, but not to CAF or UMB, as compared to controls; S-a sensilla show decreased responsiveness to DEN and STR, but not to LOB, BER, CAF, SOA or UMB, as compared to controls; and I-a and I-b sensilla show no changes in responsiveness to any of the chemicals, as compared to controls. This correlates with decreased food avoidance to LOB, BER and DEN in two-way choice assays, as compared to controls.

    The expression of Gr22eUAS.cSa under the control of Scer\GAL4Gr33a-GAL4 in Gr22eLL05566 mutants rescues their decreased S-b sensilla responsiveness to LOB, BER, DEN and STR, and even induces hyper-responsiveness to all four chemicals in both S-a and S-b sensilla, ectopic responsiveness to all four chemicals in I-b sensilla, and ectopic responsiveness only to STR in I-a sensilla.

    External Data
    Interactions
    Show genetic interaction network for Enhancers & Suppressors
    Phenotypic Class
    Enhanced by
    Statement
    Reference
    Suppressed by
    Enhancer of
    Statement
    Reference
    NOT Enhancer of
    Statement
    Reference
    NOT Suppressor of
    Statement
    Reference
    Other
    Phenotype Manifest In
    Suppressed by
    NOT Enhancer of
    Statement
    Reference
    NOT Suppressor of
    Statement
    Reference
    Other
    Additional Comments
    Genetic Interactions
    Statement
    Reference

    The expression of Gr59cUAS.cUa under the control of Scer\GAL4Gr33a-GAL4 in Gr22eLL05566 mutants rescues their decreased S-b sensilla responsiveness to the bitter chemicals LOB, BER, DEN and STR, and even induces hyper-responsiveness to LOB, BER, DEN in both S-a and S-b sensilla, and ectopic responsiveness to LOB, BER and DEN in I-b sensilla, but does not have an effect on responsiveness in I-a sensilla.

    The decreased responsiveness of S-a sensilla to LOB and DEN and the decreased responsiveness of S-b sensilla to LOB and DEN observed in Gr22eLL05566 mutants are partially suppressed by Gr59c1; the decreased responsiveness of S-b sensilla to BER is not affected by Gr59c1. The lack of responsiveness of I-a sensilla observed in Gr59c1 mutants is not suppressed by Gr22eLL05566.

    The decreased food avoidance to the bitter chemicals LOB, BER and DEN observed in Gr22eLL05566 mutants is enhanced by Gr59c1.

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Images (0)
    Mutant
    Wild-type
    Stocks (1)
    Notes on Origin
    Discoverer
    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (2)
    Reported As
    Name Synonyms
    Secondary FlyBase IDs
      References (6)