FB2026_02 , released June 18, 2026
Allele: Dmel\tllunspecified
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General Information
Symbol
Dmel\tllunspecified
Species
D. melanogaster
Name
FlyBase ID
FBal0046589
Feature type
allele
Associated gene
Dmel\tll
Associated Insertion(s)
Carried in Construct
Also Known As
unspecified
Key Links
Allele class
Mutagen
    Nature of the Allele
    Allele class
    Mutagen
    Progenitor genotype
    Cytology
    Description

    FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.

    (FlyBase Curators, 2025-)
    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

        The number of Rh5 photoreceptors in the Bolwig's organ of mutants at the end of embryogenesis is largely unchanged relative to wild type. However, the number of Rh6 photoreceptors is dramatically increased to 20-25 instead of the normal number of 8-10.

        (Sprecher et al., 2007)

        Embryos exhibit gap defects.

        (Moore et al., 1998)

        Embryos have an abnormal head skeleton and lack A8 and telson structures.

        (Strecker et al., 1992)
        External Data
        Interactions
        Show genetic interaction network for Enhancers & Suppressors
        Phenotypic Class
        Phenotype Manifest In
        Additional Comments
        Genetic Interactions
        Statement
        Reference

        The terminal regions of kniunspecified tllunspecified double mutants develop a single large denticle band. Triple mutant kniunspecified gtunspecified tllunspecified embryos develop a lawn of denticles which extends from the terminal into the abdominal region of the embryo.

        (Bronner and Jäckle, 1991)
        Xenogenetic Interactions
        Statement
        Reference
        Complementation and Rescue Data
        Comments
        Images (0)
        Mutant
        Wild-type
        Stocks (0)
        Notes on Origin
        Discoverer
        Comments
        Comments

        3 mutants are isolated.

        (Moore et al., 1998)
        External Crossreferences and Linkouts ( 0 )
        Synonyms and Secondary IDs (2)
        Reported As
        Symbol Synonym
        tllunspecified
        unspecified
        (Strecker et al., 1992, Bronner and Jäckle, 1991)
        Name Synonyms
        Secondary FlyBase IDs
          References (7)