FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\wun2N14
Open Close
General Information
Symbol
Dmel\wun2N14
Species
D. melanogaster
Name
FlyBase ID
FBal0177109
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Amino acid replacement: W111term.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

G9416675A

Amino acid change:

W111term | wun2-PA; W7term | wun2-PB

Reported amino acid change:

W111term

Comment:

G to A nucleotide change at the second or third position of the wild type Trp codon leads to a nonsense mutation (exact site of mutation unspecified). The mutation was annotated at the second base of the codon.

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

Embryos derived from wun2N14/Df(2R)w45-19g females and wild type males have approximately 2 germ cells in stage 15/16 embryos (compared to approximately 21 in wild type).

Embryos derived from females carrying wun2N14 germline clones and wild type males contain only one germ cell on average in stage 15/16 embryos (compared to approximately 20 in wild type).

Embryos from wun2N14/Df(2R)w45-19g mothers form normal numbers of pole cells which migrate normally up to stage 10. However, by stage 11, the numbers of poles cells are dramatically reduced. Any remaining pole cells remain associated with the surface of the midgut, and in subsequent development, few or no pole cells are incorporated into the gonads. These animals develop into morphologically normal animals. However, 80% of the resulting adult females are agametic.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

The pole cell death phenotype of embryos from wun2N14/Df(2R)w45-19g mothers is partially suppressed by zygotic wunCE/Df(2R)w45-19g, although proper migration of the pole cells is not rescued in these embryos (Note wunCE/Df(2R)w45-19g vs wunCE/+ embryos not indpendently scoreable, but in a 1:1 population of each, 50% had a less severe cell death phenotype than wun+ embryos from wun2N14/Df(2R)w45-19g mothers. These were assumed to be wunCE/Df(2R)w45-19g rather than wunCE/+).

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer

Isolated in an EMS screen to identify maternal mutations causing defects in pole cell development.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (5)