FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\Df(1)bi-D3
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General Information
Symbol
Df(1)bi-D3
Species
D. melanogaster
Name
Deficiency (1) bifid
FlyBase ID
FBab0000757
Feature type
Also Known As
Df(1)BiD3, Df(1)biD3
Computed Breakpoints include

4C5-4C6;4C7-4C8

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Class of aberration (relative to wild type)
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

mei-9 << bk1 << lac << pon << bk2

Genetic mapping information
Comments
Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0043953) Right limit of break 1 from inclusion of amb (FBrf0043953) Left limit of break 2 from inclusion of pon (FBrf0105275) Right limit of break 2 from polytene analysis (FBrf0043953)

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
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
 
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.
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    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    Flies heterozygous for the deletion do not show a Minute bristle phenotype.

    Homozygous embryos have an ectopic S17 phase in the epidermis.

    Df(1)bi-D3/Y embryos undergo an additional division after mitosis 16, instead of becoming postmitotic as in wild-type embryos. The extra S phase is prevented if the Df(1)bi-D3/Y embryos are carrying fzrhs.PS. Endoreduplication in the salivary glands (that normally occurs after mitosis S phase 16) fails in Df(1)bi-D3/Y embryos.

    100% of hemizygous embryos have abdominal segment 4.5 to 6.0 at the posterior tip, indicating a failure of germband retraction.

    Hemizygous embryos were examined with polarised light microscopy and antibody staining: muscle pattern grossly deranged.

    Stocks (2)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    Name Synonyms
    Deficiency (1) bifid
    Secondary FlyBase IDs
      References (14)