FB2024_03 , released June 25, 2024
Allele: Dmel\dar13232
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General Information
Symbol
Dmel\dar13232
Species
D. melanogaster
Name
FlyBase ID
FBal0258677
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

dar13232 contains a premature stop codon so that only a fragment of the N-terminal half of the protein can be produced, without the nuclear localization signal and zinc finger domains.

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
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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

dar13232/dar13232 larval dendritic arborizing neurons display loss of the multipolar layout of dendrites, with many becoming bipolar, and some Class I dendritic arborizing neurons becoming unipolar. Axon targeting and terminal branching is unaffected.

dar13232/dar13232 larval es neurons not do not show a significant change in morphology as compared to wild type.

dar13232 engenders a decrease in the percentage of multi-compartmental Golgi in dendrites of larval dendritic arborization neurons without affecting the Golgi in the soma and branch points.

In dar13232 mutants, major dendrites of class IV da neurons are either missing or shortened, consequently resulting in a reduced dendritic arbor. In contrast, the axonal growth of these neurons is normal. Dendrites of class I da neurons are also severely shortened.

dar13232/dar13010 mutants, generated by crossing dar13232 germline clones with dar13010 mutants show the same phenotype as dar13232 zygotic mutants, that is, the dendrites are reduced but the axons are normal. Dendritic defects are visible as early as 16-17 hours after egg laying and become more pronounced in 18-19 hours after egg laying, suggesting these mutants exhibit reduced outgrowth of dendrites.

Single neurons homozygous for dar13232, generated through MARCM, exhibit severely reduced dendritic arbors, supporting the notion that dar1 functions cell-autonomously. Dendrites are dramatically reduced in all four classes of da neurons (class I-ddaD and ddaE, class II-ddaB, class III-ddaA, and class IV-ddaC). In contrast, there is no significant defect in axonal growth in these mutants.

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

Expression of nudEScer\UAS.A under the control of Scer\GAL4unspecified partially rescues the increased number of bipolar dendritic arborizing neurons seen in dar13232/dar13232 mutant clones.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Rescued by
Comments

The presence of dar1+tYa rescues the dendrite defects in both class IV and class I neurons mutant for dar13232.

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Mutant
Wild-type
Stocks (1)
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Synonyms and Secondary IDs (1)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (4)