FB2026_02 , released June 18, 2026
Aberration: Dmel\Df(1)fu-P1
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General Information
Symbol
Df(1)fu-P1
Species
D. melanogaster
Name
Deficiency (1) fused
FlyBase ID
FBab0000820
Feature type
chromosomal_deletion
Also Known As
Df(1)fuP1, fuP1
Computed Breakpoints include

17C3-17C6;17D1-17D2

Features within 17C3--17D2
Sequence coordinates
X:18,657,876..18,658,373 [+] (Df(1)fu-P1:bk2)
(Preat et al., 1990)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
P-element activity
PM hybrid dysgenesis
(Mariol et al., 1987)
Class of aberration (relative to wild type)
chromosomal_deletion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_deletion
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << fu << bk2

Genetic mapping information
Comments

Breakpoint 2 was mapped to an BamHI-KpnI restriction fragment. The position of the restriction fragment on the reference sequence was inferred by a FlyBase curator.

(Preat et al., 1990)

Breakpoint(s) molecularly mapped

(Preat et al., 1990)
Comments on Cytology

Left limit of break 1 from polytene analysis (citation unavailable) Right limit of break 1 from inclusion of fu (FBrf0065539) Limits of break 2 from polytene analysis (citation unavailable)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
fu
(Preat et al., 1993)
Partially deleted / disrupted
Molecular Data
Completely deleted
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
 
Affected Genes Inferred by Location (0)
    If no genes are listed here, it may be because the affected region is very large. The JBrowse insert above may show an error for the same reason, and other FlyBase tools such as CytoSearch may also fail for large regions. You can contact FlyBase for more help.
    In these cases, there will be no "Export to Hitlist" button to the left.
    Phenotypic Data
    In combination with other aberrations

    Df(1)fu-P1/Dp(1;3)fu+10 viable

    NOT in combination with other aberrations

    Glial cells are present along the ectopic axon bundle associated with extra wing margin bristles that results from deficiency from fu.

    (Giangrande, 1994)

    lethal stage: larva

    Stocks (0)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    Large deficiency breaking in the 5' region of the gene.

    (Preat et al., 1993)
    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    Df(1)fu-P1
    Df(1)fuP1
    (Preat et al., 1993, Therond et al., 1993, Therond et al., 1992)
    fuP1
    (Giangrande, 1994, Mariol et al., 1987)
    l(1)fuP1
    (Mariol et al., 1987)
    Name Synonyms
    Deficiency (1) fused
    Secondary FlyBase IDs
      References (9)