FB2026_03 , released September 17, 2026
Aberration: Dmel\Dp(1;f)856
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General Information
Symbol
Dp(1;f)856
Species
D. melanogaster
Name
FlyBase ID
FBab0003341
Feature type
free_duplication
Computed Cytological Breakpoints (relative to progenitor)

1D3-1D4;20A-h26

Features within 1Lt--1D3 (Observed cytology)
Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
In(1)sc8
Mutagen
X ray
Class of aberration (relative to wild type)
free_duplication
(FlyBase, 2007)
Class of aberration (relative to progenitor)
free_duplication
Cytological Breakpoints (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

svr << bk1 << bk2 << bb

Genetic mapping information
Comments
Comments on Cytology

Limits of break 1 from polytene analysis (citation unavailable) Left limit of break 2 from polytene analysis (citation unavailable) Right limit of break 2 from non-inclusion of bb (citation unavailable)

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
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
Genes Duplicated
Complementation Data
Completely duplicated
bb
(Hawley et al., 1992)
sc
(Hawley et al., 1992)
y
(Hawley et al., 1992)
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
 
dor
(Hawley et al., 1992)
su(wa)
(Hawley et al., 1992)
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
    NOT in combination with other aberrations
    Stocks (0)
    Notes on Origin
    Discoverer

    Krivshenko and Cooper, 1953.

     

    deletion of most of X euchromatin

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    Length at mitotic metaphase (relative to length of 4th chromosome): 3.0 Frequency (%) of Dp/Y segregation among female progeny: 66.4 +- 4.50 (significant at 0.1% level of risk) Frequency (%) of exceptional (XXY) females among the progeny: 3.5

    (Portin and Rantanen, 1998.12.18)

    Induce high frequency of X and 4th chromosome nondisjunction.

    (Hawley et al., 1992)
    Synonyms and Secondary IDs (1)
    Reported As
    Symbol Synonym
    Dp(1;f)856
    Name Synonyms
    Secondary FlyBase IDs
      References (8)