FB2026_02 , released June 18, 2026
Aberration: Dmel\Dp(1;f)1337
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General Information
Symbol
Dp(1;f)1337
Species
D. melanogaster
Name
FlyBase ID
FBab0003303
Feature type
free_duplication
Computed Breakpoints include

2B7;h26-h32

Features within h26--1Rt
Sequence coordinates
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
(Belyaeva and Zhimulev, 1991, Belyaeva et al., 1982)
Breakpoints

2B8--2B9;[]

(Rayle and Hoar, 1969)

2B7--8;[]

(Belyaeva et al., 1982)

2B7;19-20

(Belyaeva and Zhimulev, 1991)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

hfw << bk1 << bb << bk2

Genetic mapping information
Comments
Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0037773) Right limit of break 1 from polytene analysis (FBrf0053437) Left limit of break 2 from inclusion of bb (citation unavailable) Right limit of break 2 from polytene analysis (FBrf0053437)

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
Genes NOT Duplicated
Complementation Data
 
bb
(Hawley et al., 1992)
w
(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

    Morphological changes present in the 1B region: continuous compaction, bands and interbands at euchromatin and heterochromatin junction fuse to form a block of chromatin, and discontinuous compaction, morphologically normal zones separate at least two zones of compaction.

    (Belyaeva and Zhimulev, 1991)

    Variegates for dor, hfw, and br in male with no Y chromosome

    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
     

    1.4 times the length of metaphase chromosome 4. Induce low frequency of X and 4th chromosome nondisjunction.

    (Hawley et al., 1992)
    Synonyms and Secondary IDs (1)
    Reported As
    Symbol Synonym
    Dp(1;f)1337
    Name Synonyms
    Secondary FlyBase IDs
      References (11)