FB2026_03 , released September 17, 2026
Aberration: Dmel\T(1;4)pn2a
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General Information
Symbol
T(1;4)pn2a
Species
D. melanogaster
Name
Translocation (1;4) prune
FlyBase ID
FBab0006545
Feature type
chromosomal_translocation
Also Known As
T(1;4)pn2
Computed Cytological Breakpoints (relative to progenitor)

2E2;101F

Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
(Ilyina, 1980)
Class of aberration (relative to wild type)
chromosomal_translocation
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_translocation
(Slobodyanyuk and Serov, 1983, Ilyina, 1980)
Cytological Breakpoints (relative to progenitor)

2D5-2D6;101F

(Slobodyanyuk and Serov, 1983, Ilyina, 1980)

2D--F;[]

(Tolchkov and Gvozdev, 1984)
Causes alleles
pn2a
(Ilyina, 1980)
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 hits pn

Genetic mapping information
Comments
Comments on Cytology

Limits of break 1 from complementation mapping against pn (citation unavailable) Limits of break 2 from polytene analysis (FBrf0034407)

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

    Suppresses the expression of PgdA in larvae and adults, due to position effect variegation.

    (Slobodyanyuk and Serov, 1983)

    The activity of the PgdA gene within the translocation is approximately halved, due to position effect variegation. This activity is normalised by the introduction of Y chromosome material.

    (Alatortsev et al., 1982)

    Heterozygotes are viable and exhibit a pn phenotype. Homozygotes are lethal.

    (Ilyina, 1980)

    Male lethal.

    Stocks (0)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    Order of markers is: cv-v-f-car-y (order on a normal chromosome is: y-cv-v-f-car), suggesting that the distal section of the X chromosome has been transferred to the centromeric region of the X chromosome and not to the fourth chromosome.

    (Tolchkov and Gvozdev, 1984)
    Synonyms and Secondary IDs (4)
    Reported As
    Symbol Synonym
    T(1;4)pn2
    (Tolchkov and Gvozdev, 1984, Alatortsev et al., 1982, Ilyina, 1980)
    T(1;4)pn2a
    pn2
    (Slobodyanyuk and Serov, 1983)
    Name Synonyms
    Translocation (1;4) prune
    Secondary FlyBase IDs
      References (6)