FB2024_03 , released June 25, 2024
Allele: Dmel\dsx23
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General Information
Symbol
Dmel\dsx23
Species
D. melanogaster
Name
FlyBase ID
FBal0003176
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
dsxd+r3
Key Links
Mutagen
Nature of the Allele
Caused by aberration
Cytology
Description

Produces a shortened transcript.

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

P1 neurons are present in both XX and XY dsx23/Df(3R)dsx15 animals (these neurons are normally only found in male brains in the wild type).

dsx23 mutants appear intersexual externally. Mutant males exhibit a decrease in male-specific serotonergic neurons, while females display ectopic serotonergic neurons. These neurons are differentially patterned depending on the sex of the mutant. In dsx23 females, a single cluster of three to four serotonergic neurons develops either ventrally or dorsally. In males, both clusters develop but contain 50% fewer neurons than wild-type males.

dsx1/dsx23 mutant gonads are masculinised with respect to hub formation (germline stem cell niche formation).

dsx1/dsx23 mutant embryonic gonads appear fully masculinised.

In the somatic gonad, stage 15 male dsx1/dsx23 mutant embryos are indistinguishable from wild-type males. In contrast, the gonads of stage 15 female dsx1/dsx23 mutant embryos exhibit a completely masculinized phenotype, in which male-specific somatic gonadal precursors are clearly present.

Both the male and female genital primordia develop in XX genital discs.

XY males show courtship sluggishness when compared to wild type siblings. Aging does not improve the courtship performance. Song pulses are similar to those of dsx+ males, though number and duration of song bouts are much reduced. No sine-song bouts whatsoever are generated by dsx mutants. In elicitation and rejection tests, dsx haplo-X mutants demonstrate an attractiveness that cannot be explained by general enfeeblement, such as inability to reject courtship advances.

XX dsx23/Df(3R)dsx15 flies do not show any male-specific courtship when paired with mature virgin females. 100% of XY dsx23/Df(3R)dsx15 flies show male-specific courtship when paired with mature virgin females. XY dsx23/Df(3R)dsx15 flies have a reduced courtship index (compared to control males) when paired with immature male flies. XY dsx23/Df(3R)dsx15 flies have an essentially normal courtship song compared to control XY flies.

Sex specific neuroblasts fail to undergo any postembryonic divisions in male or female larval nervous systems.

Dorsal musculature does not undergo sexual transformation.

When crossed to Df(3R)dsx2D progeny are viable and display the dsx phenotype.

Homozygotes are intersexual. Adults have roughened eyes and deformed legs.

External Data
Interactions
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Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
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Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer

Revertant.

Comments
Comments

Rank order for subnormal courtship in dsx alleles is dsx1 < dsx16 < dsx15 < dsx23.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
References (21)