FB2026_02 , released June 18, 2026
Allele: Dmel\Desat27-11HD-low
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General Information
Symbol
Dmel\Desat27-11HD-low
Species
D. melanogaster
Name
FlyBase ID
FBal0095912
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
Z30
Key Links
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Encodes a functional copy of desat2.

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

Females produce 5,9-heptacosadiene as the predominant cuticular hydrocarbon.

Flies carrying the Z-type desat2Z allele in an M-type background have a higher 5,9-heptacosadiene to 7,11-heptacosadiene ratio than control desat2M flies (which carry the M-type allele of desat2 in an M-type background). However, the ratio is not as high as seen in natural populations of flies from Zimbabwe populations (which carry the naturally occurring desat27-11HD-low Z-type allele), indicating that there are likely other loci involved in cuticle hydrocarbon composition.

Females have a high ratio of 5,9 heptacosadiene/7,11 heptacosadiene (the "High" cuticular hydrocarbon (CH) type).

Changes the proportion of 7,11- heptacosadiene:5 ,9-heptacosadiene from high to low.

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
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer

Isolated from: Dominican Republic (Jaragua 3B) population, 1993. Associated with: In(3L)P.

Comments
Comments

Ancestral allele. The cosmopolitan desat25-9HD-low allele is derived from the ancestral desat27-11HD-low allele and has spread worldwide.

Prevalent in African and Caribbean populations.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (6)
Reported As
Symbol Synonym
7-11HDl
Desat27-11HD-low
desat27-11HD-low
Name Synonyms
Secondary FlyBase IDs
    References (6)