FB2026_03 , released September 17, 2026
Aberration: Dmel\In(1LR)sc260-25
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General Information
Symbol
In(1LR)sc260-25
Species
D. melanogaster
Name
Inversion (1LR) scute
FlyBase ID
FBab0004318
Feature type
chromosomal_inversion
Computed Cytological Breakpoints (relative to progenitor)

1B2;h33-h34

Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
(Sutton, 1943)
Class of aberration (relative to wild type)
chromosomal_inversion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_inversion
(Sutton, 1943)
Cytological Breakpoints (relative to progenitor)

1A1-1B2;h26-h34

(Sutton, 1943, Sutton, 1940)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 hits sc << bk2

Genetic mapping information
Comments
Comments on Cytology

The tip of the X chromosome is transposed to the chromocenter of the same chromosome.

(Sutton, 1940)

Left limit of break 1 from complementation mapping against sc (FBrf0005045) Right limit of break 1 from polytene analysis (FBrf0005045) Left limit of break 2 from polytene analysis (citation unavailable) Right limit of break 2 from polytene analysis (FBrf0005045)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
sc
(Sutton, 1943, Sutton, 1940)
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.
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    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    Lethal in homozygous and hemizygous condition.

    (Sutton, 1943)

    more extreme than scV1 homozygous lethal

    Stocks (0)
    Notes on Origin
    Discoverer

    Sutton, 1940.

    (Sutton, 1943)

    Sutton, Nov. 1939.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
    Other Comments
     

    "position-effect variegation for: l(1)1Ac" was stated as tentative.

    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    In(1)sc260-25
    In(1LR)sc260-25
    Tp(1)260-25
    (Sutton, 1943)
    Tp(1;1)sc260-25
    Name Synonyms
    Inversion (1LR) scute
    Secondary FlyBase IDs
      References (4)