FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Nfa-g62
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General Information
Symbol
Dmel\Nfa-g62
Species
D. melanogaster
Name
FlyBase ID
FBal0012870
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
fag2, fag-2
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

Insertion of a transposable element into an intronic region between exons B and C of N.

flea at -11.9 to -11.2

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

Nfa-g62 mutant eyes do not display interommatidial pigment cell death.

Nl1N-ts1/Nfa-g62 flies show a temperature sensitive roughening of the eye.

Loss of primary pigment cell development and programmed cell death. Ablation of cone cells in four adjacent developing ommatidia at 20 hrs APF causes death of interommatidial precursor cells in wild type. This IPC death is blocked by Nfa-g62 or Ras85DV12.hs.

Interommatidial cells appear similar in shape to secondary pigment cells and are not sorted.

Nl1N-ts1/Nfa-g62 females show a sharply temperature-dependent facet-eye phenotype: eyes are wild type up to 23oC, but are facet-like at higher temperatures. Flies are fully viable and fertile at all temperatures tested.

Retina defects are not associated with optic lobe defects in 65.2% of homozygous Nfa-g62 retina clones generated by somatic recombination. The arrangement of ommatidia is severely disrupted, the number of ommatidia is reduced and they appear shorter than normal in homozygous clones in the retina. A disruption of the fenestrated zone, laminar cortex and neuropil can be seen in the underlying optic lobe if it is defective. Homozygous late pupae have normal optic lobe morphology, but the lamina neuropil is severely disrupted, containing large vacuoles, and the medulla neuropil contains small vacuoles in homozygous adults.

Like Nfa-g and cannot be distinguished from it. In heterozygotes with N mutants and in Nfa-g62/Nfa-g, the Nfa-g phenotype is exhibited; Nfa-g62/Nfa-1 has a Nfa-1 phenotype, and Nfa-g62/spl is wild type. strong allele; wings nicked; dosage compensated

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

Nfa-g62 is a suppressor of increased cell death phenotype of Chc4

Phenotype Manifest In
Enhanced by
Statement
Reference

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAI1

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAI1

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAS4

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAS4

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAC1

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAC1

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAG2

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAG2

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAH2

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAH2

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAH7

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAH7

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAF1

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAI5

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAI5

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAK1

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAK1

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAO5

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAO5

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAS2

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAS2

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAAT1

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAT1

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAAF1

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAA2

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAA2

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAD3

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAD3

Nfa-g62 has eye phenotype, enhanceable by Ca-P60A[+]/SERCAP2

Nfa-g62 has lens phenotype, enhanceable by Ca-P60A[+]/SERCAP2

Suppressor of
Statement
Reference

Nfa-g62 is a suppressor of secondary pigment cell phenotype of Chc4

Nfa-g62 is a suppressor of tertiary pigment cell phenotype of Chc4

Additional Comments
Genetic Interactions
Statement
Reference

The retinal disorganisation and interommatidial pigment cell death observed in Chc4 mutant flies is suppressed by Nfa-g62.

Ca-P60A alleles cause dominant eye roughening and maldeposition of lens material between adjacent lenses, typical of the 'facet' mutant phenotype, in a Nl1N-ts1/Nfa-g62 background at 23oC.

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

The P{MGIIa} construct fails to rescue.

Images (0)
Mutant
Wild-type
Stocks (2)
Notes on Origin
Discoverer

Ives.

Comments
Comments

Removes N activity specifically in pigment cells.

Nfa-g62 appears to act cell autonomously.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (5)
References (14)