FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\ec1
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General Information
Symbol
Dmel\ec1
Species
D. melanogaster
Name
FlyBase ID
FBal0003499
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

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

Insertion of a copia element 3' to the transcript, in addition to the mutation in the coding region.

Amino acid replacement: R295term.

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

C3852227T

Amino acid change:

R261term | ec-PA; R295term | ec-PB; R314term | ec-PC

Reported amino acid change:

R295term

Comment:

Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.

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 adults have rough eyes and extra interommatidial cells are present in the pupal retina.

ec1 adult eyes display weak ommatidial orientation defects. Rarely, disrupted ommatidial orientation is observed in third instar and pupal (24 hours after pupal formation) eye discs. Programmed cell death is occasionally disrupted to result in additional lattice cells in the pupal eye disc from 42 hours after pupal formation.

ec1/Df(1)GA102 adult eyes display intermediate ommatidial orientation defects, reduced in frequency compared to ecspok homozygotes, but increased compared to ec1 homozygotes.

Post death stage homozygous ec1 pupal retinae have an increased average density of secondary/tertiary pigment cells compared to wild-type. Unlike wild-type, the local density of these cells is variable.

Occasional extra primary pigment cells and extra cone cells within the eye. Low levels of cell death are seen in the larval eye disc leading to a disorganised retinal lattice.

Reduces number of mesopleural hairs in h homozygotes.

Eyes large and bulging. Eye surface rough; facets large. Wings rather short and broad. Body thickset. Tends to remove dorsocentrals (posterior more than anterior) and posterior notopleurals; may also add dorsocentrals anterior to anterior dorsocentrals whether or not posterior bristles removed (Sturtevant). ec1 is visible in +/ec1/ec1 triploids (Gersh). RK1.

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

ec1 has phenotype, non-suppressible by su(Hw)2

Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Fails to complement
Comments
Images (1)
Stocks (26)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (9)