FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\sovEA42
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General Information
Symbol
Dmel\sovEA42
Species
D. melanogaster
Name
FlyBase ID
FBal0356465
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

G to A mutation at position 8140 relative to the first transcription start site of sov. This introduces a stop codon in place of amino acid residue Trp1437.

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

G6764462A

Amino acid change:

W1437term | sov-PA; W1437term | sov-PB; W1437term | sov-PC

Reported amino acid change:

W1437term

Comment:

Nonsense mutation (TGG to TAG) at Trp 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

The ovaries of sov2/sovEA42 transheterozygous females show a range of phenotypes, including abnormal numbers of spectrosomes in the germarium, degenerate tissue characterized by small, nub-like ovaries comprising dysmorphic germaria, ovarian tumors and empty ovarioles.

sovEA42 female germline clones do not produce vitellogenic egg chambers or mature eggs.

Homozygous females produce small ovaries that contain few egg cysts and disorganised ovarioles. The egg cysts that develop have aberrant morphology, including abnormal numbers of nurse cells and patches of necrotic cells.

Lethality acts at the embryonic and larval stages. abnormal oogenesis

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

Df(1)sov female germline clones do not produce vitellogenic egg chambers or mature eggs, which is rescued by Dp(1;3)DC486.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Fails to complement
Rescued by
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer

Lefevre.

In contrast to FBrf0080470, which suggested that the 'EA42' chromosome carries separable mutations in adjacent female-sterile and lethal loci, rescue of both the female sterility and lethality of the 'EA42' chromosome by duplications and a transgene containing sov suggests that the female sterility and lethality of the chromosome map to the same locus.

Separable from: sov4.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (5)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
  • FBal0046509
  • FBal0007068
References (4)