FB2026_02 , released June 18, 2026
Aberration: Dmel\Tp(2;Y)D203
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General Information
Symbol
Tp(2;Y)D203
Species
D. melanogaster
Name
FlyBase ID
FBab0009868
Feature type
interchromosomal_transposition
Computed Breakpoints include

47A1-47A11;59;h1-h25B

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Dp(1;Y)BarSYy+
Mutagen
X ray
Class of aberration (relative to wild type)
interchromosomal_transposition
Class of aberration (relative to progenitor)
unoriented_interchromosomal_transposition
(Bhadra et al., 1997, Baker, 1980)
Breakpoints

47A-47B;59;h1-h25B

(Baker, 1980)

47A-47B;59

(McKee et al., 1993)

47A--B;[];h1--h25B

(Bhadra et al., 1997)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << Ufo << bk2

Genetic mapping information
Comments
Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0034398) Right limit of break 1 from inclusion of Ufo (FBrf0094159) Limits of break 2 from polytene analysis (FBrf0034398) Limits of break 3 from polytene analysis (FBrf0034398)

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.
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    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    X/T(Y;2) male sterile

    Stocks (0)
    Notes on Origin
    Discoverer

    D.L. Lindsley.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
    Other Comments
     

    Elevated frequencies of prophase associations between second and Y chromosomes occur in proportion to the region of homology between the second and Y chromosomes. Transposition heterozygotes exhibit preferential Y-2 segregation, also in proportion to the region of homology between the second and Y chromosomes. Thus males have a general homology pairing system despite their lack of recombination.

    (McKee et al., 1993)
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    T(Y;2)D203
    (Baker, 1980)
    Tp(2;Y)D203
    Name Synonyms
    Secondary FlyBase IDs
      References (4)