Open Close
General Information
D. melanogaster
FlyBase ID
Feature type
Computed Breakpoints include


Deleted Segment
Sequence coordinates
X:18,692,931..18,692,931 (Df(1)Exel9051:bk1)
X:18,741,433..18,741,433 (Df(1)Exel9051:bk2)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Class of aberration (relative to wild type)
Class of aberration (relative to progenitor)


Causes alleles
Carries alleles
Formalized genetic data
Genetic mapping information

Breakpoint from FlyBase's release 5 sequence location of progenitor insertion.

Comments on Cytology

Limits computationally determined from location of progenitor P insertion on genome sequence between P{EP}EP443EP443/P{EP}BxEP1383 and P{EP}Pk17EEP438

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Partially deleted / disrupted
Molecular Data
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
Molecular Data
Genes Duplicated
Complementation Data
Completely duplicated
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
Molecular Data
Phenotypic Data
In combination with other aberrations

Dp(1;3)DC351 completely rescues the Df(1)Exel9051 mutant neuromuscular junction (NMJ) phenotype.

Dp(1;3)DC352 fails to rescue the Df(1)Exel9051 mutant neuromuscular junction (NMJ) phenotype.

Compared with wild-type, Df(1)Exel9051/Df(1)ED7413 mutant larvae exhibit neuromuscular junction (NMJ) undergrowth.

Inferred to overlap with: Df(1)ED7413.

The size and frequency of miniature excitatory junction potentials (mEJPs) from muscle 6 of Df(1)Exel9051/Y mutants does not differ from that of wild-type. However, the size of excitatory junction potentials (EJPs) is reduced in Df(1)Exel9051/Y mutants compared with wild-type.

NOT in combination with other aberrations

Df(1)Exel9051 is viable when hemi- or homozygous. Compared with wild-type, homo- or hemizygous Df(1)Exel9051 mutant larvae exhibit neuromuscular junction (NMJ) undergrowth.

Under dim light conditions, the distance travelled by mutant third instar larvae in one minute at 20-22[o]C is not significantly different from wild type. The frequency of peristaltic contractions under these conditions is normal in the mutant larvae. However, under bright light at 27-30[o]C (stress conditions) the mutant larvae travel significantly less far than wild type in one minute. Under these conditions, the frequency of peristaltic contractions is reduced in the mutant larvae compared to wild type.

The olfactory receptor neurons of Df(1)Exel9051 mutant flies do not show any overt phenotype, either in uninjured flies or in flies in which the antennae have been surgically ablated.

Stocks (1)
Notes on Origin
Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments

FlyBase curator comment: The aberration chromosome previously referred to as "Df(1)Exel9054" is in fact identical to Df(1)Exel9051 (generated using the same progenitor insertions), and thus the two entries have been merged in the database.

Synonyms and Secondary IDs (3)
Reported As
Name Synonyms
Secondary FlyBase IDs
  • FBab0037831
  • FBab0038691
References (13)