FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\qvrEY04063
Open Close
General Information
Symbol
Dmel\qvrEY04063
Species
D. melanogaster
Name
FlyBase ID
FBal0161515
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
sssP1, qvrEY
Key Links
Genomic Maps

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

Insertion in the open reading frame.

Allele components
Component
Use(s)
Mutations Mapped to the Genome
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

qvrEY04063/qvrEY04063 males sleep significantly less than wild type during both day and night and have shorter sleep bout durations and increased bout numbers, as well as increases in sleep latency. Mutants display weak circadian activity rhythms under constant dark conditions.

Ethanolamine O-sulfate treatment (10mM in adult males, to inhibit GABAT) partially rescues nighttime sleep in qvrEY04063/qvrEY04063 mutants.

qvrEY04063 mutants display normal wing beat frequency and DLM firing rate. However, the DLM spiking pattern in these flies lacks regularity (as measured by the CV of inter-spike intervals).

Homozygous and qvrEY04063/qvrf01257 adults show a reduced amount of daily sleep compared to controls.

The spontaneous miniature excitatory junctional potential (mEJP) frequency is significantly increased in qvrEY04063 mutant larvae compared with wild-type controls.

The magnitude and kinetics of the Sh-dependent I[[A]] current in larval muscles is altered in qvrEY04063 mutants. The qvrEY04063 mutation significantly delayed the time to peak of I[[A]] at 10 mV and also decreased the I[[A]] current magnitude at every voltage greater than 20 mV.

Male and female homozygous flies show a severe reduction in both daytime and nighttime sleep compared to controls; the reduction is more than 85% for males and more than 80% for females. Approximately 9% of the mutant flies do not sleep at all. Despite the reduction in daily sleep, waking activity is not significantly elevated. The reduction in sleep is largely due to a sharp reduction in the duration of sleep bouts, but is also attributable in part to a significant reduction in the number of daily sleep bouts. Heterozygotes behave similarly to controls in their sleep behaviour.

qvrΔ40/qvrEY04063 flies show a severely reduced amount of daily sleep compared to control flies.

qvrEY04063/qvrf01257 flies have a 30% reduction in daily sleep relative to control qvrEY04063/+ flies.

Mechanical stimulation results in moderate reduction in the amount of sleep lost in qvrEY04063/qvrf01257 flies compared to controls. These flies show little or no rebound after the sleep deprivation.

Homozygous flies show weak locomotor activity circadian rhythms under constant darkness conditions.

Almost all qvrEY04063/qvrf01257 flies are rhythmic for circadian locomotor activity.

Homozygous flies show normal phototactic responses and perform as well as controls in a taste discrimination assay. Homozygotes do not show a bang sensitive phenotype, but they are somewhat uncoordinated.

Homozygotes have a shortened life span compared to controls.

Homozygous and qvrEY04063/qvr1 flies show ether-induced leg shaking.

qvrEY04063/qvr1 flies show a significant decrease in sleep relative to wild-type controls.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressed by
NOT suppressed by
NOT Enhancer of
Statement
Reference

qvr[+]/qvrEY04063 is a non-enhancer of abnormal sleep | dominant phenotype of nAChRα4rye

Other
Phenotype Manifest In
Suppressed by
Statement
Reference
Additional Comments
Genetic Interactions
Statement
Reference

Gabatf01602/Gabatf01602 partially suppresses sleep phenotypes seen in qvrEY04063/qvrEY04063 flies; in addition, double mutants show an increase in the fraction of long sleep episodes and reductions in nighttime sleep bout numbers (similar to Gabatf01602/Gabatf01602 single mutants); qvrEY04063/qvrEY04063 circadian rhythmicity is increased with the introduction of Gabatf01602/Gabatf01602. Stronger suppression of the short sleep phenotype in qvrEY04063/qvrEY04063 flies is seen with the introduction of GabatPL00338/GabatPL00338.

Expression of GabatScer\UAS.T:SV5\V5,T:Zzzz\His6 driven by Scer\GAL4Gabat-PL00338 or Scer\GAL4repo.PU (but not Scer\GAL4Gad1.3.098) in a qvrEY04063/qvrEY04063;Gabatf01602/Gabatf01602 double mutant background diminishes sleep to around 35% (sleep is also more fragmented and sleep latency increases, whereas sleep bout number is unchanged) of qvrEY04063/qvrEY04063;Gabatf01602/Gabatf01602 (partial rescue).

qvrEY04063/+ ; wakeGS17103/+ and qvrEY04063/+ ; Rdl1/+ double heterozygotes show no significant change in sleep latency compared to controls.

nAChRα4rye/+; qvrEY04063/+ flies show sleep duration comparable to that of nAChRα4rye/+ alone.

Expression of either nAChRα3JF02750 or nAChRβ3JF01947 under the control of Scer\GAL4qvr.PW partially rescues the reduction in total amount of daily sleep which is seen in qvrEY04063 flies.

Expression of any one of nAChRα1JF03103, nAChRα2JF02643, nAChRα4JF03419, nAChRα5JF01963, nAChRα6JF01853, nAChRα7JF02570, nAChRβ1JF02158 or nAChRβ2JF02873 under the control of Scer\GAL4qvr.PW does not rescue the reduction in total amount of daily sleep which is seen in qvrEY04063 flies.

Xenogenetic Interactions
Statement
Reference

Expression of Mmus\Lynx1Scer\UAS.cWa under the control of Scer\GAL4qvr.PW partially rescues the reduced daily sleep seen in qvrEY04063 flies, without altering waking activity.

Complementation and Rescue Data
Comments

Restoring qvrScer\UAS.cWa specifically in adults (driven by Scer\GAL4elav.Switch.PO with RU486 feeding) partially rescues qvrEY04063/qvrEY04063 sleep phenotypes.

Expressing qvrScer\UAS.cWa driven by Scer\GAL4Gad1.3.098 or Scer\GAL4VGAT.PF significantly restores sleep to 80-90% (respectively) of wild type levels in qvrEY04063/qvrEY04063 flies; rescued sleep is due to both lengthened sleep bout duration and increased bout number and sleep latency is returned to wild type levels.

Expressing qvrScer\UAS.cWa driven by Scer\GAL4repo.PU or Scer\GAL4Gabat-PL00338 does not rescue sleep phenotypes (no significant changes in nighttime sleep, sleep bout duration or number, or sleep latency) in qvrEY04063/qvrEY04063 flies; when driven by Scer\GAL4repo.PU, there is a slight (significant) increase in day time sleep.

Expression of qvrScer\UAS.cWa under the control of Scer\GAL4qvr.PW completely rescues the reduced daily sleep seen in qvrEY04063 flies.

The amount of daily sleep returns to wild-type levels in qvrEY04063 mutant flies carrying both the Scer\GAL4qvr.PW driver and the qvrScer\UAS.cWa transgene.

Pan-neural expression of qvrScer\UAS.cWa under the control of the Scer\GAL4elav-C155 driver fully rescues the qvrEY04063 mutant sleep phenotype.

Expressing qvrScer\UAS.cWa in cholinergic neurons using Scer\GAL4Cha.7.4 results in strong rescue of the short-sleeping phenotype (but not the leg-shaking) of qvrEY04063 mutants.

Scer\GAL4VGlut.PS- or Scer\GAL4ple.PF-driven expression of qvrScer\UAS.cWa results in weak or no rescue of the qvrEY04063 mutant sleep phenotype.

The leg-shaking phenotype of qvrEY04063 mutants is rescued by Scer\GAL4elav-C155- or Scer\GAL4qvr.PW-driven expression of qvrScer\UAS.cWa.

Scer\GAL4VGlut.PS driven expression of qvrScer\UAS.cWa rescues the qvrEY04063 mutant leg-shaking phenotype.

Presynaptic expression of qvrScer\UAS.cWa driven by Scer\GAL4elav-C155 rescues the spontaneous miniature excitatory junctional potential (mEJP) frequency phenotype of qvrEY04063 mutants.

Expression of qvrScer\UAS.cWa driven by either Scer\GAL4how-24B or Scer\GAL4Cha.7.4 fails to rescue the spontaneous miniature excitatory junctional potential (mEJP) frequency phenotype of qvrEY04063 mutants.

Expression of qvrScer\UAS.cWa driven by Scer\GAL4how-24B rescues the Sh-dependent I[[A]] current kinetics and amplitude phenotypes of qvrEY04063 mutants.

Expression of qvrScer\UAS.cWa driven by Scer\GAL4elav-C155 fails to rescue the Sh-dependent I[[A]] current kinetics and amplitude phenotypes of qvrEY04063 mutants.

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

Precise excision of the insertion in qvrEY04063 restores the daily sleep amount to wild-type levels.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (7)
References (16)