FB2026_02 , released June 18, 2026
Aberration: Dmel\Df(3L)Spn-Δ3.1
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General Information
Symbol
Df(3L)Spn-Δ3.1
Species
D. melanogaster
Name
FlyBase ID
FBab0048304
Feature type
chromosomal_deletion
Also Known As
spnΔ3.1
Computed Breakpoints include
Features within 62E3--62E5 (Estimated cytology)
Genomic Maps
Sequence coordinates
3L:2,490,163..2,490,163 (Df(3L)Spn-Delta3.1:bk1)
(Muhammad et al., 2015)
3L:2,554,013..2,554,013 (Df(3L)Spn-Delta3.1:bk2)
(Muhammad et al., 2015)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
P{XP}CG1146d03461
(Muhammad et al., 2015)
PBac{WH}Spnf01597
(Muhammad et al., 2015)
Mutagen
FLPase
(Muhammad et al., 2015)
Class of aberration (relative to wild type)
chromosomal_deletion
(Muhammad et al., 2015)
Class of aberration (relative to progenitor)
chromosomal_deletion
(Muhammad et al., 2015)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments

FLP-mediated recombination between the two progenitor insertions (P{XP}CG1146d03461 and PBac{WH}Spnf01597), resulting in deletion of the genomic sequence between them.

(Muhammad et al., 2015)
Comments on Cytology
Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Partially deleted / disrupted
Molecular Data
Completely deleted
CG16758
(Muhammad et al., 2015)
Spn
(Muhammad et al., 2015)
Partially deleted
CG1146
(Muhammad et al., 2015)
Svil
(Muhammad et al., 2015)
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
msn
(Muhammad et al., 2015)
Genes Duplicated
Complementation Data
Completely duplicated
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
 
Molecular Data
 
Affected Genes Inferred by Location (7)
Phenotypic Data
In combination with other aberrations

Df(3L)Spn-Δ3.1/Df(3L)BSC116 mutants die during pupal stages. Larval neuromuscular junctions in these mutants show an increase in active zone scaffold densities, and these are smaller; there is an increase in the frequency of spontaneous synaptic vesicle release in the presynaptic motoneuron, and a decrease in synaptic vesicle release evoked by single action potentials, as compared to controls; but average NMJ size is unchanged.

(Muhammad et al., 2015)

Df(3R)RhoGAP100Fex3.4/+ suppresses the neuromuscular junction phenotypes seen in Df(3L)Spn-Δ3.1/Df(3L)BSC116 mutants.

(Muhammad et al., 2015)
NOT in combination with other aberrations
Stocks (0)
Notes on Origin
Discoverer
 
Balancer / Genotype Variants of the Aberration
 
Separable Components
 
Other Comments
 
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
Df(3L)Spn-Δ3.1
spnΔ3.1
(Ramesh et al., 2021, Muhammad et al., 2015)
Name Synonyms
Secondary FlyBase IDs
    References (2)