FB2026_03 , released September 17, 2026
Aberration: Dmel\In(3LR)f7
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General Information
Symbol
In(3LR)f7
Species
D. melanogaster
Name
Inversion (3LR) free arms
FlyBase ID
FBab0005497
Feature type
chromosomal_inversion
Computed Cytological Breakpoints (relative to progenitor)

75A1-75A2;90A1-90A5

Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
F(3R)*
F(3L)*
Mutagen
X ray
(Craymer, 1984)
Class of aberration (relative to wild type)
chromosomal_inversion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_inversion
(Craymer, 1984)
Cytological Breakpoints (relative to progenitor)

75A1-75A2;90A1-90A5

(Craymer, 1984)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

All limits from polytene analysis (FBrf0063387)

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

    Homozygous viable and fertile; wings may be slightly flimsy but otherwise phenotypically wild type.

    (Craymer, 1984)
    Stocks (0)
    Notes on Origin
    Discoverer

    Craymer, 1981.

     

    reciprocal translocation between F(3L) and F(3R). Replacement of the centromere regions with that of a normal chromosome by double recombination converts the translocation into a pericentric inversion.

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
    Other Comments
     

    Subsequently reconstituted as In(3LR) by double-crossover centromere replacement from a normal third chromosome

    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    In(3LR)f7
    Name Synonyms
    Inversion (3LR) free arms
    Secondary FlyBase IDs
      References (4)