FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\dmt3999
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General Information
Symbol
Dmel\dmt3999
Species
D. melanogaster
Name
FlyBase ID
FBal0191491
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

A 10bp deletion that results in a frame shift, introducing 15 novel residues at the C-terminus followed by a stop codon.

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

Homozygous dmt3999 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing. Defects are also seen in the peripheral nervous system. Inhibiting apoptosis specifically in the trachea (through expression of BacA\p35 under the control of Scer\GAL4btl.PU) significantly rescues the trachea and salivary duct defects.

dmt3999/dmtI184 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing. Defects are also seen in the peripheral nervous system.

dmt589/dmt3999 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing.

dmt3999/Df(3R)GB104 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing. Defects are also seen in the peripheral nervous system.

In aul3999 embryos, the dorsal trunk and ventral branches of the tracheal system appear broken or fail to form at all.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Fails to complement
Comments

Global expression of dmtScer\UAS.cKa under the control of Scer\GAL4tub.PU significantly rescues the salivary duct and trachea gap phenotypes seen in homozygous dmt3999 mutant embryos. Trachea and duct-specific expression under the control of Scer\GAL4btl.PU rescues the defects in the duct and trachea. Expression in the peripheral nervous system (PNS) under the control of Scer\GAL4sens.PU or Scer\GAL4elav.PU rescues the PNS and salivary duct defects, but gaps are still observed in the trachea.

Global expression of dmtScer\UAS.N.T:Avic\GFP under the control of Scer\GAL4tub.PU significantly rescues the salivary duct and trachea gap phenotypes seen in homozygous dmt3999 mutant embryos. Trachea and duct-specific expression under the control of Scer\GAL4btl.PU rescues the defects in the duct and trachea. Expression in the peripheral nervous system (PNS) under the control of Scer\GAL4sens.PU or Scer\GAL4elav.PU rescues the PNS and salivary duct defects, but gaps are still observed in the trachea.

Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer

Selected as: a mutation that disrupts tracheal development when homozygous.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
aul3999
dmt3999
Name Synonyms
Secondary FlyBase IDs
    References (2)