FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Rif1KO
Open Close
General Information
Symbol
Dmel\Rif1KO
Species
D. melanogaster
Name
FlyBase ID
FBal0344229
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

Precise deletion of the Rif1 open reading frame. A Disc\RFPDsRed.3xP3.cUa marker has been inserted in place of the deleted sequence.

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

Rif1KO homozygous mutants develop to adulthood with a reduced survival rate and a reduced male-to-female ratio. Embryos laid by Rif1KO/Rif1KO mothers have a reduced hatch rate as well as cell cycle defects; including a shorter mitotic S phase 13, a significantly shorter S phase 14, resembling earlier S phases, and occasional early entry into (an additional) mitosis 14, which completes, but with substantial nuclear fall in.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

Rif1KO homozygosity, but not heterozygosity in mothers expressing Cdc7GL00585 under the control of Scer\GAL4VP16.mat.αTub67C restores cell cycle progression, with most embryos reaching the blastoderm stage; nuclear abnormalities still occur, but some embryos (a minority) survive and hatch.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
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)