FB2024_03 , released June 25, 2024
Allele: Dmel\aslmecD
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General Information
Symbol
Dmel\aslmecD
Species
D. melanogaster
Name
FlyBase ID
FBal0221154
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Mutagen
    Nature of the Allele
    Mutagen
    Progenitor genotype
    Cytology
    Description

    Nucleotide substitution: C1718T.

    Amino acid replacement: Q483term.

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

    C5604944T

    Reported nucleotide change:

    C1718T

    Amino acid change:

    Q483term | asl-PA

    Reported amino acid change:

    Q483term

    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 ( 1 )
    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

    aslmecD homozygous third instar larval brains do not display obvious changes in volume, as compared to controls.

    The 'remnant' centrioles (originally built from maternally deposited protein and inherited by the developing tissues, asl protein-negative) present in the testes of aslmecD homozygous mutant third instar larvae are not evenly distributed as centrioles in control flies but are located in four distinct cell populations: hub cells, male germline stem cells, proximal and distal germline cells.

    aslmecD homozygotes display abnormally long remnant centrioles in the male germline stem cells (but not in the adjacent hub cells) that grow progressively bigger as development proceeds (larvae 72 and 96 after egg laying, pharate adults). The centrioles are being lost from male germline stem cells over time. Remnant centrioles in the female germline stem cells in aslmecD homozygous pharate adults or in the larval wing disc cells are also longer compared to controls.

    aslmecD/Df(3R)ED5177 male third instar larvae also display abnormally long remnant centrioles in their germline stem cells compared to controls.

    Remnant centrioles in aslmecD male homozygote pupae or pharate adults display defects in nuclear attachment and/or axoneme formation and the nuclei of late stage spermatids are fragmented and dispersed.

    Mutant flies cannot stand on their legs, which are crossed, and their wings extend upwards.

    The basal body and sensory cilium are missing in the mechanosensory neurons of mutant flies.

    Spermatid tails are still formed in mutant males, but contain abnormal mitochondrial derivatives and the axonemes are completely absent. No basal bodies are found in the mutant spermatid cysts.

    "Maternally contributed" (MC) centrioles containing wild-type asl protein from the mother are stable in aslmecD testes, being present in stem cells at the tip of the testis, and remaining in the stem cells until late pupal stages. However, no daughter centrioles are found near these MC centrioles, in contrast to wild-type testes, where the mother centrioles are often associated with daughter centriole. The MC centrioles elongate in spermatocytes, as occurs in wild type and the recruitment of pericentriolar material by the MC centrioles is not impaired.

    External Data
    Interactions
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    Phenotypic Class
    Phenotype Manifest In
    Additional Comments
    Genetic Interactions
    Statement
    Reference

    mad2G6595, aslmecD double homozygous third instar larval brains display a strong decrease in volume, as compared to single mutants and wild-type controls.

    The remnant centrioles growing progressively longer as development proceeds (from larvae 72 and 96 hr after egg laying to pharate adults) phenotype observed in male germline stem cells of aslmecD homozygotes can be partially suppressed by expression of Cep97Ubi-p63E.T:Avic\GFP-EGFP,T:PACT-Plp but not that of either Cep97Ubi-p63E.T:Avic\GFP-EGFP or PlpPACT.Ubi-p63E.T:Avic\GFP-EGFP alone.

    Xenogenetic Interactions
    Statement
    Reference
    Complementation and Rescue Data
    Rescued by
    Comments
    Images (0)
    Mutant
    Wild-type
    Stocks (0)
    Notes on Origin
    Discoverer
    External Crossreferences and Linkouts ( 0 )
    Synonyms and Secondary IDs (3)
    Reported As
    Name Synonyms
    Secondary FlyBase IDs
      References (6)