FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\arrunspecified
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General Information
Symbol
Dmel\arrunspecified
Species
D. melanogaster
Name
FlyBase ID
FBal0086714
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
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.

    Mutations Mapped to the Genome
    Curation Data
    Type
    Location
    Additional Notes
    References
    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
    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

    Heterozygous embryos derived from homozygous female germline clones show normal accumulation of glycogen at all stages.

    The anterior en-expressing cells in each segment incorrectly adopt a denticle fate in zygotic arr mutants. Embryos lacking both maternal and zygotic arr function are indistinguishable from wg null mutants. No smooth cuticle is produced in these embryos. arr null mutant cells do not survive as well as their wild-type sister cells when twin spot clones are made. Mutant clones in the dorsal leg show no tissue polarity defects.

    arrunspecified mutant embryos have additional denticle bands anterior and posterior to the normal denticle bands, especially in the ventral midline. The phenotype is stronger at 18oC.

    External Data
    Interactions
    Show genetic interaction network for Enhancers & Suppressors
    Phenotypic Class
    Phenotype Manifest In
    Suppressed by
    Additional Comments
    Genetic Interactions
    Statement
    Reference

    Smooth cuticle is restored in alternate segments to arrunspecified embryos lacking maternal and zygotic arr function when dshScer\UAS.cAa is expressed in these embryos under the control of Scer\GAL4prd.RG1. Overexpression of wg has no effect on the phenotype of embryos lacking maternal and zygotic arr function.

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Fails to complement
    Partially rescued by
    Comments
    Images (0)
    Mutant
    Wild-type
    Stocks (0)
    Notes on Origin
    Discoverer
    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (1)
    Reported As
    Symbol Synonym
    arrunspecified
    Name Synonyms
    Secondary FlyBase IDs
      References (7)