FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\pydBG02748
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General Information
Symbol
Dmel\pydBG02748
Species
D. melanogaster
Name
FlyBase ID
FBal0194118
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Nature of the Allele
Progenitor genotype
Associated Insertion(s)
Cytology
Description
Allele components
Component
Use(s)
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

pydBG02748 embryos display defects in tracheal development including dorsal branch fusion problems, ectopic terminal cells, a lack of fusion cells, and ganglionic branch outgrowth defects. The dorsal branch phenotype is not fully penetrant; 2% of embryos show wild-type tracheal systems, 17% show defects in 1 metamere, 43% show defects in 2-4 metameres and 40% show defects in >5 metameres. Fusion defects are occasionally observed in the lateral trunk, although the penetrance of this is lower than for the dorsal branch.

pydBG02748/Df(3R)p-XT103 transheterozygotes show the same tracheal phenotypes as pydBG02748 homozygotes.

The dorsal branches of pydBG02748 embryos show large loops of intercellular adherens junctions, indicating that cell intercalation is not complete. These intercalation defects are not fully penetrant. Ganglionic branches also show defective cell intercalation.

External Data
Interactions
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Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Partially rescued by
Comments

Expression of either pydScer\UAS.T:Avic\GFP-EGFP or pydScer\UAS.cJa under the control of Scer\GAL4btl.PS partially rescues the tracheal phenotype of pydBG02748 embryos. pydBG02748>pydScer\UAS.T:Avic\GFP-EGFP expression provides full rescue of the tracheal cell intercalation phenotype.

Images (0)
Mutant
Wild-type
Stocks (0)
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External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (3)