FB2025_01 , released February 20, 2025
Allele: Dmel\pigeonP1
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General Information
Symbol
Dmel\pigeonP1
Species
D. melanogaster
Name
FlyBase ID
FBal0011653
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
lio1
Key Links
Genomic Maps

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

The P{etau-lacZ}drlP3.765 insertion in drlP3.765 is inserted at the same nucleotide as the P{lacW}pigeonP1 insertion.

P{lacW} is inserted approximately 800bp 3' to the pigeon transcription unit, in an opposite orientation. The insertion site is 6bp distal to that of P{etau-lacZ}drlP3.765 (also transcribed in the opposite direction to the pigeon and drl transcription units).

Insertion of P{lacW} between pigeon and drl.

Allele components
Component
Use(s)
Inserted element
Encoded product / tool
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

Mutant animals show decreased 1 hour memory that is further reduced by aging.

After presentation of electric shock with a first odour, P{lacW}pigeonP1 flies show a wild-type response to a second, different odour.

Mutant flies show some pupal lethality, indicating a developmental defect as well as a learning and memory defect for the P{lacW}pigeonP1 chromosome.

Shows mutant learning and 3 hour retention scores.

Sensory and motor systems (olfactory acuity and shock reactivity) required for the classical conditioning experiments are normal indicating that the mutation disrupts learning/memory specifically.

Flies exhibit defective initial learning levels, thereafter mutant memory decays as wild type.

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

pigeon[+]/pigeonP1 is an enhancer of eye phenotype of DrefUAS.cSa

Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Not rescued by
Comments

Mutant learning and memory phenotypes can be rescued by pigeonhs.PB. Gross anatomy of mushroom bodies and central complex is normal in pigeonP1 mutants. FlyBase curator comment: In a subsequent publication (Bolwig et al., 2002, Neuron 34: 667) the authors describe how repeat of these rescue experiments failed to reproduce the rescue of the adult learning defect of pigeonP1 by FBtp0006269.

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

Isolation: in a screen for three-hour memory deficits after classical conditioning of an olfactory avoidance response.

Comments
Comments

P{lacW}pigeonP1 is inserted 800 bp downstream of the pigeon transcription unit, perhaps in the 5'UTR of drl. In fact, the P{etau-lacZ} in drlP3.765, is inserted 6 bp away from the pigeonP1 allele. The P{lacW} insertion in the pigeonP1 mutant could therefore be causing an additional drl phenotype.

In contradiction to the result published in FBrf0083785, the pigeon transcript in adult heads is not affected in size or abundance in pigeonP1;drlP1 mutants.

The pigeonP1 mutation disrupts expression of the pigeon transcript.

Reversion assay reveals the P{lacW} insertion is responsible for the mutant phenotype.

Wild type P-element revertants have been generated.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
References (14)