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General Information
Symbol
Dmel\btlLG18
Species
D. melanogaster
Name
FlyBase ID
FBal0030666
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Nature of the Allele
Mutations Mapped to the Genome
 
Type
Location
Additional Notes
References
Associated Sequence Data
DNA sequence
Protein sequence
 
 
Progenitor genotype
Cytology
Nature of the lesion
Statement
Reference
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 )
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference
btlLG18 homozygous clones in the dorsal air sac primordium grow and divide normally but never contribute to the tip of the primordium.
Tracheal pits form, but tracheal cells do not undergo significant migration, and remain clustered at the site of the tracheal pit. Posterior pair of midline glia cells begin to migrate anteriorly, but fail to reach posterior commisure. This phenotype only evident in midline glia cells, even though btl expressed in several midline cell types.
External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference
stumps09904b/btlLG18 double heterozygotes did not show any tracheal defects.
btlLG18 bnl00857 double mutants exhibit a tracheal phenotype similar to either mutant alone.
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
Comments
Comments
Isolated on basis of lethality over Df(3L)fz-GF3b and Df(3L)fz-GS1a. Phenotype of homozygote indistinguishable from phenotype of heterozygote with Df(3L)fz-GF3b or Df(3L)fz-GS1a. The btl alleles form a phenotypic series with respect to the tracheal phenotype. In decreasing order of severity, btlLG18 = btlLG19 > btlH82Δ3 > btlH82Δ11 > btl6-81Δ1.
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (8)