FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\pzg66
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General Information
Symbol
Dmel\pzg66
Species
D. melanogaster
Name
FlyBase ID
FBal0265712
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Nature of the Allele
Associated Insertion(s)
Cytology
Description

Imprecise excision of the progenitor insertion, resulting in a 7083bp deletion within the inserted P{SUPor-P} element and a deletion of 839bp of pzg sequences, including the transcription and translation start sites. A 3' part of the original P{SUPor-P} insertion remains.

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

A deletion resulting from the imprecise excision of P{SUPor-P}KG04911 which removes7083 bp within the P-element and 839 bp of pzg sequences.

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

Homozygous embryos show normal development. Homozygous larvae show a developmental delay and are smaller and thinner than wild-type larvae. The mutant larvae show an almost linear mortality rate with age, and none of them survive more than 150 hours. They moult only once during this time, reaching the second instar stage, but then there is no further increase in size. The addition of 20-hydroxyecdysone to the diet results in almost 90% of mutants surviving to to the second instar and nearly all of them reach the third instar.

Homozygous first and second instar larvae show significantly reduced mouth-hook contractions per time interval relative to controls. They are able to take up food, as assayed by the presence of coloured yeast in the gut in a feeding assay. Homozygous larvae are more sluggish than control larvae and remain dispersed on the plates in the feeding assay, in contrast to wild-type larvae which reach the central food source more quickly.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhancer of
Statement
Reference
Phenotype Manifest In
Enhancer of
Statement
Reference

pzg66/pzg[+] is an enhancer of melanotic mass | adult stage phenotype of hopTum

pzg66/pzg[+] is an enhancer of lamellocyte | larval stage | increased number phenotype of hopTum

Additional Comments
Genetic Interactions
Statement
Reference

The penetrance of the melanotic mass phenotype seen in hopTum/+ females is enhanced if they also carry one copy of pzg66.

The incidence of lamellocytes as a percentage of the total hemocytes in hemolymph preparations is increased in hopTum/+ ; pzg66/+ larvae compared to hopTum/+ larvae.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments

Expression of pzgScer\UAS.cKa under the control of Scer\GAL4da.G32 rescues the lethality of homozygous pzg66 larvae, in a dose-dependent manner.

Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (2)