FB2026_02 , released June 18, 2026
Allele: Dmel\DoaHD
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General Information
Symbol
Dmel\DoaHD
Species
D. melanogaster
Name
FlyBase ID
FBal0002719
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
DoaHD1, DoaHD2
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology

Polytene chromosomes normal.

Description

The copia{} element is inserted 177 nucleotides 3' to the first non-coding exon of Doa and 231 nucleotides 5' to the 55kD transcript's initiating AUG.

An uncharacterised 5kb transposable element in inserted within an intron.

Mutations Mapped to the Genome
Curation Data
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

DoaHD/DoaDem mutant flies show a mild female to male somatic sex transformation phenotype. Very slight asymmetry is seen and there are a few missing vaginal bristles.

DoaDem/DoaHD testes are filled with early stage germ cells.

Homozygous germline clones result in early germ cell over-proliferation in testes. The overproliferating cells have branched fusomes, indicating that they are spermatogonia.

DoaHD heterozygous adults show significantly reduced sensitity to paraquat.

In DoaHD/Doas2784 mutants where the DoaHD allele is from the mother blackened areas are seen on the wings. When the Doas2784 allele comes from the mother the mutants die at or prior to the pupal stage.

In DoaHD/Doa5 mutants where the DoaHD allele is from the mother there is a strong transformation of females towards males, with male colouration of tergites 5 and 6, male sex combs on the prothoracic leg, and a normal but rotated female genital plate. When the Doa5 allele comes from the mother there are no survivors.

Heterozygotes with Doa7 have ommatidia of varying size and disorganization of the interommatidial bristles. Random interruption of the normal lattice of pigment cells and random vacuolization of the retina and pigment cells are restored to at least normal levels (suppression of wa).

Crosses between DoaHD and Doa9 heterozygotes indicate that Doa is not an embryonic lethal, and is probably lethal during early larval stages. Rare DoaHD/Doa6 or DoaHD/Doa7 escapers of lethality are found at a frequency of approximately 0.5%. DoaHD/Doa6 escapers are more frequently female than male (ratio 4:1 ) and the male escapers are sterile despite having motile sperm.

Heterozygotes with Doa6 or Doa7 survive rarely and when they do, wa is darkened to nearly wild-type color; wsp55 reacts in the opposite manner, becoming nearly white; eyes of escapers have disarranged facets. Males of these heteroallelic combinations involving Doa6 are sterile despite having motile sperm; females and both sexes involving Doa7 are weakly fertile.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhanced by
Statement
Reference
Suppressed by
Suppressor of
Statement
Reference

Doa[+]/DoaHD is a suppressor | partially of lethal phenotype of Scer\GAL4da.PU, Srrm1GE25979

NOT Suppressor of
Statement
Reference

DoaHD/DoaDem is a non-suppressor of lethal phenotype of Scer\GAL4da.PU, Srrm1GE25979

Other
Phenotype Manifest In
NOT Enhanced by
Statement
Reference

Doa7/DoaHD has phenotype, non-enhanceable by Ras85De2F

Doa7/DoaHD has phenotype, non-enhanceable by gl2

Doa7/DoaHD has phenotype, non-enhanceable by gl60j

Doa7/DoaHD has phenotype, non-enhanceable by rl1

Doa7/DoaHD has phenotype, non-enhanceable by rlSem

Doa7/DoaHD has phenotype, non-enhanceable by sina1

DoaHD/DoaDem has phenotype, non-enhanceable by EgfrE1

DoaHD/DoaDem has phenotype, non-enhanceable by Ras85De2F

DoaHD/DoaDem has phenotype, non-enhanceable by gl2

DoaHD/DoaDem has phenotype, non-enhanceable by gl60j

DoaHD/DoaDem has phenotype, non-enhanceable by rl1

DoaHD/DoaDem has phenotype, non-enhanceable by rlSem

DoaHD/DoaDem has phenotype, non-enhanceable by sina1

Suppressed by
NOT suppressed by
Statement
Reference

Doa7/DoaHD has phenotype, non-suppressible by Ras85De2F

Doa7/DoaHD has phenotype, non-suppressible by gl2

Doa7/DoaHD has phenotype, non-suppressible by gl60j

Doa7/DoaHD has phenotype, non-suppressible by rl1

Doa7/DoaHD has phenotype, non-suppressible by rlSem

Doa7/DoaHD has phenotype, non-suppressible by sina1

DoaHD/DoaDem has phenotype, non-suppressible by EgfrE1

DoaHD/DoaDem has phenotype, non-suppressible by Ras85De2F

DoaHD/DoaDem has phenotype, non-suppressible by gl2

DoaHD/DoaDem has phenotype, non-suppressible by gl60j

DoaHD/DoaDem has phenotype, non-suppressible by rl1

DoaHD/DoaDem has phenotype, non-suppressible by rlSem

DoaHD/DoaDem has phenotype, non-suppressible by sina1

Enhancer of
Statement
Reference

Doa[+]/DoaHD is an enhancer of male genitalia phenotype of Scer\GAL4esg.PU, Srrm1GE25979

DoaHD is an enhancer of phenotype of wsp55

NOT Enhancer of
Statement
Reference

DoaHD is a non-enhancer of phenotype of wa57i11

DoaHD is a non-enhancer of phenotype of wa58l

DoaHD is a non-enhancer of phenotype of wa2

DoaHD is a non-enhancer of phenotype of wr

DoaHD is a non-enhancer of phenotype of wIR5

DoaHD is a non-enhancer of phenotype of y2

DoaHD is a non-enhancer of phenotype of wa3

DoaHD is a non-enhancer of phenotype of wsp81d

DoaHD is a non-enhancer of phenotype of wa59k1

DoaHD is a non-enhancer of phenotype of wsp2

DoaHD is a non-enhancer of phenotype of wE

DoaHD is a non-enhancer of phenotype of wIR3

DoaHD is a non-enhancer of phenotype of wec3

DoaHD is a non-enhancer of phenotype of wapl

DoaHD is a non-enhancer of phenotype of wIR2

DoaHD is a non-enhancer of phenotype of wsat

DoaHD is a non-enhancer of phenotype of wbl

DoaHD is a non-enhancer of phenotype of wBwx

DoaHD is a non-enhancer of phenotype of wa4

DoaHD is a non-enhancer of phenotype of wcol

DoaHD is a non-enhancer of phenotype of we2

DoaHD is a non-enhancer of phenotype of wIR1

DoaHD is a non-enhancer of phenotype of wco

DoaHD is a non-enhancer of phenotype of wi

DoaHD is a non-enhancer of phenotype of wIR4

DoaHD is a non-enhancer of phenotype of wIR6

DoaHD is a non-enhancer of phenotype of wmo

DoaHD is a non-enhancer of phenotype of wh

DoaHD is a non-enhancer of phenotype of wbf2

DoaHD is a non-enhancer of phenotype of wzm

DoaHD is a non-enhancer of phenotype of wbf

DoaHD is a non-enhancer of phenotype of we

Suppressor of
Statement
Reference

DoaHD is a suppressor of phenotype of waM

DoaHD is a suppressor of phenotype of waR84h

DoaHD is a suppressor of phenotype of wa

NOT Suppressor of
Statement
Reference

DoaHD is a non-suppressor of phenotype of wa57i11

DoaHD is a non-suppressor of phenotype of wa58l

DoaHD is a non-suppressor of phenotype of wsp2

DoaHD is a non-suppressor of phenotype of wE

DoaHD is a non-suppressor of phenotype of wec3

DoaHD is a non-suppressor of phenotype of wIR2

DoaHD is a non-suppressor of phenotype of wbl

DoaHD is a non-suppressor of phenotype of wcol

DoaHD is a non-suppressor of phenotype of we2

DoaHD is a non-suppressor of phenotype of wIR4

DoaHD is a non-suppressor of phenotype of wIR3

DoaHD is a non-suppressor of phenotype of wIR6

DoaHD is a non-suppressor of phenotype of wmo

DoaHD is a non-suppressor of phenotype of wBwx

DoaHD is a non-suppressor of phenotype of wa3

DoaHD is a non-suppressor of phenotype of wa4

DoaHD is a non-suppressor of phenotype of wapl

DoaHD is a non-suppressor of phenotype of wbf

DoaHD is a non-suppressor of phenotype of wbf2

DoaHD is a non-suppressor of phenotype of wIR1

DoaHD is a non-suppressor of phenotype of wco

DoaHD is a non-suppressor of phenotype of we

DoaHD is a non-suppressor of phenotype of wh

DoaHD is a non-suppressor of phenotype of wi

DoaHD is a non-suppressor of phenotype of wsat

DoaHD is a non-suppressor of phenotype of wzm

DoaHD is a non-suppressor of phenotype of y2

DoaHD is a non-suppressor of phenotype of wa2

DoaHD is a non-suppressor of phenotype of wr

DoaHD is a non-suppressor of phenotype of wIR5

DoaHD is a non-suppressor of phenotype of wsp81d

DoaHD is a non-suppressor of phenotype of wa59k1

Other
Additional Comments
Genetic Interactions
Statement
Reference

SRm160B103 strongly enhances the female to male somatic sex transformation phenotype seen in DoaHD/DoaDem mutant flies. The male genital arch and "claspers" are seen in XX individuals.

SRm160GE25979 strongly enhances the female to male somatic sex transformation phenotype seen in DoaHD/DoaDem mutant flies. The male genital arch and "claspers" are seen in XX individuals.

DoaHD/DoaDem does not suppress the lethality seen when SRm160GE25979 is expressed under the control of Scer\GAL4da.PU.

DoaHD/DoaDem almost completely suppresses the smooth, glassy eye seen when SRm160GE25979 is expressed under the control of Scer\GAL4GMR.PU. The ommatidial disruption is partially suppressed: the various cell types and layers are all identifiable albeit somewhat perturbed. Although differentiation pigment cells are observed and cone cells secrete a cornea of normal appearance, the pigment and photoreceptor cells fail to elongate to form a normal retina. There is a reduction in the levels of apoptosis (caspase activation).

One copy of DoaHD partially suppresses the lethality seen when SRm160GE25979 is expressed under the control of Scer\GAL4da.PU. The viable escapers do not display any cuticular phenotypes.

One copy of DoaHD enhances the loss of external genitalia phenotype seen in males expressing SRm160GE25979 under the control of Scer\GAL4esg.PU.

Very few animals survive when SRm160GE25979 is expressed under the control of Scer\GAL4esg.PU in a DoaHD/DoaDem mutant background, but those that do survive completely lack genitalia and analia and die shortly following eclosion.

Expression of bamScer\UAS.P\T.T:Avic\GFP under the control of either Scer\GAL4bam.T:Hsim\VP16 or Scer\GAL4vas.2.6 promotes the differentiation of spermatogonia to spermatocytes in DoaDem/DoaHD testes.

DoaHD Ef1γGE29510/DoaDem flies show a number of defects, including ectopic wing venation, failure of either of the crossveins to attach (particularly the posterior crossvein in males), aberrantly formed crossveins, occasional eye roughness, curved wings and rarely, partial rotation of the female genitalia.

DoaHD in combination with E(gl)3Cunspecified results in flies with normal eyes, wings and bristles. No suppression of wa is seen in these flies.

Rare DoaHD/Doa6 or DoaHD/Doa7 escapers show extreme suppression of the wa phenotype, such that eyes, Malpighian tubules, ocelli and testes are essentially wild-type in colour. They have disordered eye facets and scutellar bristles are often missing or abnormal. Male escapers carrying wsp55 have bleach-white eyes.

Xenogenetic Interactions
Statement
Reference

Expression of either Hsap\CLK2Scer\UAS.cZa or Mmus\Clk2Scer\UAS.cZa under the control of Scer\GAL4bam.T:Hsim\VP16 partially rescues the sterility of DoaDem/DoaHD males.

Expression of Hsap\CLK2K192A.Scer\UAS under the control of Scer\GAL4bam.T:Hsim\VP16 is unable to promote the differentiation of spermatogonia in DoaDem/DoaHD testes.

Expression of Hsap\CLK2C274Y.Scer\UAS under the control of Scer\GAL4bam.T:Hsim\VP16 is able to promote the differentiation of spermatogonia in DoaDem/DoaHD testes.

Complementation and Rescue Data
Comments

Expression of either Doa69.long3'UTR.Scer\UAS or DoaScer\UAS.PS under the control of Scer\GAL4bam.T:Hsim\VP16 almost completely rescues the sterility of DoaDem/DoaHD males.

Expression of either Doa139-511.Scer\UAS.PS.T:Zzzz\FLAG or DoaScer\UAS.PK under the control of Scer\GAL4bam.T:Hsim\VP16 partially rescues the sterility of DoaDem/DoaHD males.

Expression of Doa1-138.Scer\UAS.PS.T:Zzzz\FLAG under the control of Scer\GAL4bam.T:Hsim\VP16 fails to rescue the sterility of DoaDem/DoaHD males.

Expression of either DoaC275Y.Scer\UAS.PS.T:Zzzz\FLAG or DoaK193A.Scer\UAS.PS.T:Zzzz\FLAG under the control of Scer\GAL4bam.T:Hsim\VP16 is unable to promote the differentiation of spermatogonia in DoaDem/DoaHD testes.

Images (0)
Mutant
Wild-type
Stocks (2)
Notes on Origin
Discoverer

The "HD1" and "HD2" alleles have an insertion in an identical location. They both potentially originate from a single event during mass crosses.

Comments
Comments

Does not interact with gypsy induced alleles at several loci (f1, y2 and ct6).

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (6)
References (13)