FB2026_03 , released September 17, 2026
Aberration: Dmel\T(Y;2)CyO
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General Information
Symbol
T(Y;2)CyO
Species
D. melanogaster
Name
Translocation (Y;2) Curly Oster
FlyBase ID
FBab0008521
Feature type
chromosomal_translocation
Computed Cytological Breakpoints (relative to progenitor)
Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
In(2LR)CyO
(FlyBase Curators, 2006-)
Mutagen
X ray
Class of aberration (relative to wild type)
chromosomal_translocation
Class of aberration (relative to progenitor)
Cytological Breakpoints (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology
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 (2)
    Notes on Origin
    Discoverer
     

    Generated by X-ray induction of a Y;2 translocation between the Y chromosome and CyO, l(2)DTS5131 (a dominant temperature sensitive lethal allele).

    (Parks and Cook, 2026.8.6)
    Balancer / Genotype Variants of the Aberration
    Separable Components
     
    Other Comments
     

    Can be used to construct "virginator" stocks since Cy males carry temperature-sensitive lethal (FBrf0026034). When males are mated to wildtype females at room temperature, most male progeny have curly wings and most female progeny have wildtype (straight) wings. When progeny are reared from eggs at 30 degrees C, straight-winged female progeny live, but most if not all T(Y;2)CyO male progeny die. Any surviving straight-winged male progeny, which arise from nondisjunctional gametes, are sterile because they lack a Y chromosome.

    (Parks and Cook, 2026.8.6)
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    T(Y;2)CyO
    (Parks and Cook, 2026.8.6)
    Name Synonyms
    Translocation (Y;2) Curly Oster
    Secondary FlyBase IDs
      References (4)