FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\ed2B8
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General Information
Symbol
Dmel\ed2B8
Species
D. melanogaster
Name
FlyBase ID
FBal0150514
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Mutagen
    Nature of the Allele
    Mutagen
    Progenitor genotype
    Associated Insertion(s)
    Cytology
    Description
    Allele components
    Component
    Use(s)
    Inserted element
    Encoded product / tool
    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

    Embryonic lethal with ed2B8 at 29oC. Homozygous, ed2B8/Df(2L)ed1, ed2B8/edm1 and ed2B8/ed3C2 embryos show hyperplasia of the central nervous system. ed2B8/edts embryos grown at the restrictive temperature of 29oC show hyperplasia of the central nervous system, resulting in local bulging of the ventral nerve cord. The hyperplasia of the central nervous system seen in homozygous embryos is accompanied by loss of epidermal structures, including extensive loss of ventral and procephalic cuticle. The increase in the number of neurons is preceeded by an increase in the number of neuroblasts. ed2B8/edts animals shifted to the non-permissive temperature (29oC) for 3 days at the end of larval stage 2 and then shifted back to 18oC can survive to adulthood. These flies have extra macrochaetae, which are generally found next to macrochaetae that are normally present in wild-type flies. The density of microchaetae is also increased and the flies have a rough eye phenotype. The adult escapers show irregular thickening of wing vein 2 and/or slight notching of the distal wing margin.

    External Data
    Interactions
    Show genetic interaction network for Enhancers & Suppressors
    Phenotypic Class
    Suppressor of
    Statement
    Reference
    Phenotype Manifest In
    Enhancer of
    Statement
    Reference

    ed[+]/ed2B8 is an enhancer of eye phenotype of Scer\GAL4GMR.PF, fredRNAi.UAS

    Suppressor of
    Statement
    Reference
    Additional Comments
    Genetic Interactions
    Statement
    Reference

    The loss of neurons seen in embryos expressing Nint.G.Scer\UAS under the control of Scer\GAL4Kr.PM is suppressed by ed2B8/edts at 29oC.

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Fails to complement
    Comments
    Images (0)
    Mutant
    Wild-type
    Stocks (0)
    Notes on Origin
    Discoverer
    Comments
    Comments

    Excision of the P{lacW} insertion can completely revert the mutant phenotype.

    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (1)
    Reported As
    Symbol Synonym
    ed2B8
    Name Synonyms
    Secondary FlyBase IDs
      References (2)