FB2025_05 , released December 11, 2025
Allele: Dmel\cic1
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General Information
Symbol
Dmel\cic1
Species
D. melanogaster
Name
FlyBase ID
FBal0103875
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

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

the H{}cic1 insertion within the first exon of cic.

Insertion of a 1.5kb hobo in the 5' untranslated region.

Mutations Mapped to the Genome
Curation Data
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

Embryos produced by cic1/cicQ474X, cic1/cic4 or cic1/Df(3R)ED6027 females exhibit severe defects including loss of thoracic and abdominal regions.

Cuticles of homozygous cic1 mutant embryos display strongly suppressed trunk and abdomen.

Embryos from cic1/+ mothers make normal cuticles with no sign of segmentation defects, but those from cic1 homozygous mothers show evidence of severe segmentation defects.

Homozygous mutants and cic1/cicD49 have a terminal phenotype.

cic1/cicfet-U6 females produce embryos with a tor gain-of-function phenotype.

Homozygous females produce embryos that form head and tail structures but lack most of the segmented trunk. More than 80% of embryos retain only 1-3 partial abdominal denticle belts at 25oC and the rest of the embryos show no signs of abdominal segmentation. Embryos derived from hemizygous females show a slightly more severe phenotype than those derived from homozygous females.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Enhanced by
Statement
Reference
Suppressed by
NOT suppressed by
Statement
Reference

cic1 has phenotype, non-suppressible by Dsor11

cic1 has phenotype, non-suppressible by RafLE78

cic1 has phenotype, non-suppressible by torrv66

Enhancer of
NOT Enhancer of
Statement
Reference
NOT Suppressor of
Statement
Reference

cic1 is a non-suppressor of filzkorper | maternal effect phenotype of psqrum

Other
Statement
Reference
Additional Comments
Genetic Interactions
Statement
Reference

Embryos derived from homozygous psqrum cic1 double mutant females show terminal defects resembling the psqrum single mutant phenotype.

The segmentation defects seen in embryos from cic1 homozygous are enhanced if the mothers are also trk1/+; tor11D/+.

cic1 combined with bwkΔ4 and bwk08482 produces wild-type animals, with bwkΔ14, bwkΔ81 and bwkΔ11 produces animals with a terminal phenotype.

The phenotype of embryos derived from homozygous females is not altered if the females are also homozygous for torrv66 or carry germline clones of phlLE78 or Dsor11.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Partially rescued by
Comments

Maternal expression of cicT:Ivir\HA1 rescues the embryonic cuticle phenotype of homozygous cic1 mutants.

Maternal expression of cicmini.T:Ivir\HA1 rescues the embryonic cuticle phenotype of homozygous cic1 mutants.

Maternal expression of cicΔC1.T:Ivir\HA1 only partially rescues the embryonic cuticle phenotype of homozygous cic1 mutants.

Expression of cicΔHMG.T:Ivir\HA1 fails to rescue cic1.

cicminiNLS.T:Ivir\HA1,T:SV40\nls2 is unable to rescue cic1.

A single copy of weak cicΔC2.T:Ivir\HA1 insertions rescues the cic1 mutation to adulthood.

Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
Comments
Comments
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
References (20)