FB2026_03 , released September 17, 2026
Aberration: Dmel\T(2;3)SM2
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General Information
Symbol
T(2;3)SM2
Species
D. melanogaster
Name
Translocation (2;3) Second Multiple 2
FlyBase ID
FBab0007735
Feature type
inversion_cum_translocation
Computed Cytological Breakpoints (relative to progenitor)

21A;40F;80-81

Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
In(2LR)SM1
Mutagen
X ray
Class of aberration (relative to wild type)
inversion_cum_translocation
(FlyBase, 2007)
Class of aberration (relative to progenitor)
inversion_cum_translocation
Cytological Breakpoints (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

All limits from polytene analysis (citation unavailable)

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
    Stocks (0)
    Notes on Origin
    Discoverer

    R. F. Grell, 1953.

     

    X-rays were used to impose a translocation with breakpoints 21A;40F;80-81 on SM1 (FBrf0066905). FBrf0066905 notes that 40F and 80-81 breakpoints have not been determined relative to the centromeres. The final order of the chromosome segments has not been reported.

    (Parks and Cook, 2026.8.6)
    Balancer / Genotype Variants of the Aberration
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (3)
    Reported As
    Symbol Synonym
    T(2;3)SM2
    (Parks and Cook, 2026.8.6)
    Name Synonyms
    Translocation (2;3) Second Multiple
    Translocation (2;3) Second Multiple 2
    Secondary FlyBase IDs
      References (6)