FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\T(2;3)bwR4
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General Information
Symbol
T(2;3)bwR4
Species
D. melanogaster
Name
Translocation (2;3) brown-Rearranged
FlyBase ID
FBab0007880
Feature type
chromosomal_translocation
Computed Breakpoints include

59E2;80-81

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
(Slatis, 1955)
Class of aberration (relative to wild type)
chromosomal_translocation
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_translocation
(Slatis, 1955)
Breakpoints

59E1-59E3;80-81

(Slatis, 1955)
Causes alleles
bwR4
(Slatis, 1955)
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 hits bw << bk2

Genetic mapping information
Comments
Comments on Cytology

Left limit of break 1 from polytene analysis (citation unavailable) Right limit of break 1 from complementation mapping against bw (FBrf0010226) Limits of break 2 from polytene analysis (FBrf0010226)

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
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

    Lethal over In(2)bwR79.

    (Slatis, 1955)
    NOT in combination with other aberrations

    Chromosome exhibits position effect variegation for bw.

    (Slatis, 1955)

    Expression in bwR4/+ varies from moderate to strong, depending on origin of bw+. Homozygote brown and almost completely lethal.

    Stocks (0)
    Notes on Origin
    Discoverer

    Slatis, 16 Nov. 1948.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (4)
    Reported As
    Symbol Synonym
    R4(bw)
    (Slatis, 1955)
    T(2;3)bw-R4
    T(2;3)bwR4
    Name Synonyms
    Translocation (2;3) brown-Rearranged
    Secondary FlyBase IDs
      References (3)