FB2024_03 , released June 25, 2024
Allele: Dmel\mei-P22P22
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General Information
Symbol
Dmel\mei-P22P22
Species
D. melanogaster
Name
FlyBase ID
FBal0088816
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
mei-P221
Key Links
Genomic Maps

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

P{lacW} element insertion 52bp upstream of the ATG.

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

Homozygous females show 38.5% non-disjunction of the X chromosome. Crossing over on the second chromosome (al-cn interval) is reduced to 4.2% of wild type.

Mutant for female meiotic segregation: 29.9% X chromosome exceptions from X/X females. 22.8% 4th chromosome exceptions from X/X females. 35.4% X chromosome exceptions from X/Bal females. 22.4% 4th chromosome exceptions from X/Bal females. Recombination defective mutant. Females show no recombination.

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

mei-P22P22 is a suppressor of ovariole phenotype of GcnaKO

mei-P22P22 is a suppressor of egg chamber phenotype of mio2

mei-P22[+]/mei-P22P22 is a suppressor of nurse cell phenotype of mio2

mei-P22P22/mei-P22P22 is a suppressor of nurse cell phenotype of mio2

mei-P22[+]/mei-P22P22 is a suppressor of oocyte phenotype of mio2

mei-P22P22/mei-P22P22 is a suppressor of oocyte phenotype of mio2

mei-P22P22 is a suppressor of phenotype of mei-41D18

NOT Suppressor of
Statement
Reference

mei-P22P22/mei-P22P22 is a non-suppressor of egg chorion phenotype of blv3/blv1

mei-P22[+]/mei-P22P22 is a non-suppressor of egg chorion phenotype of blv3/blv1

mei-P22P22/mei-P22P22 is a non-suppressor of egg chorion phenotype of nds4/nds2

mei-P22[+]/mei-P22P22 is a non-suppressor of egg chorion phenotype of nds4/nds2

mei-P22P22/mei-P22P22 is a non-suppressor of egg chorion phenotype of trin3/trin1

mei-P22[+]/mei-P22P22 is a non-suppressor of egg chorion phenotype of trin3/trin1

mei-P22P22/mei-P22P22 is a non-suppressor of egg chorion phenotype of SRPK4/SRPK2

mei-P22[+]/mei-P22P22 is a non-suppressor of egg chorion phenotype of SRPK4/SRPK2

mei-P22P22/mei-P22P22 is a non-suppressor of egg chorion phenotype of bha2/bha1

mei-P22[+]/mei-P22P22 is a non-suppressor of egg chorion phenotype of bha2/bha1

Other
Statement
Reference

mei-41D18, mei-P22P22 has oocyte nucleus & meiotic cell cycle phenotype

Additional Comments
Genetic Interactions
Statement
Reference

Transformation of oocytes to nurse cells in mio2 homozygous females is partially suppressed by mei-P22P22/+ or mei-P22P22/mei-P22P22. The block in oogenesis at around stage 5 seen in mio2 homozygous females is also partially suppressed by mei-P22P22, producing egg chambers that often undergo vitellogenesis and develop to the late stages of oogenesis.

In mei-41D18; mei-P22P22 oocyte nuclei premature anaphases are seen.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
Comments
Comments

No gene conversion or intragenic crossovers are observed in an assay of intragenic recombination at ry. The frequency of cross over on the entire X and second chromosome is much reduced: isolated recombination events suggest that the recombination taken place is in fact a mitotic and not a meiotic event. Examination of oocytes to study meiotic recombination events in sister chromatids reveals there are no cross over events. Double stranded breaks are not left unrepaired. Synaptonemal complex formation is not disrupted, meiotic progression is normal.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
Reported As
Name Synonyms
Secondary FlyBase IDs
  • FBal0086410
References (9)