FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\In(2)bwR56
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General Information
Symbol
In(2)bwR56
Species
D. melanogaster
Name
Inversion (2) brown-Rearranged
FlyBase ID
FBab0004353
Feature type
chromosomal_inversion
Computed Breakpoints include

40F-41A;59E1-59E2

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_inversion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_inversion
(Slatis, 1955)
Breakpoints

40F-41A;59D11

(Slatis, 1955)
Causes alleles
bwR56
(Slatis, 1955)
Carries alleles
Transposon Insertions
Formalized genetic data

bk2 hits bw

Genetic mapping information
Comments
Comments on Cytology

Limits of break 1 from polytene analysis (FBrf0010226) Limits of break 2 from complementation mapping against bw (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
    NOT in combination with other aberrations

    Chromosome exhibits position effect variegation for bw. Homozygotes are partially viable. When adult flies do occur they are often deformed: small bristles, small eyes, incompletely expanded wings and melanotic protuberances and inclusions.

    (Slatis, 1955)

    Variegation intermediate in heterozygote, extreme in homozygote.

    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
    In(2)bw-R56
    In(2)bwR56
    R56(+)
    (Slatis, 1955)
    Name Synonyms
    Inversion (2) brown-Rearranged
    Secondary FlyBase IDs
      References (3)