FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\T(1;4)wmJ
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General Information
Symbol
T(1;4)wmJ
Species
D. melanogaster
Name
Translocation (1;4) white-mottled of Jonsson
FlyBase ID
FBab0006560
Feature type
inversion_cum_translocation
Also Known As
wmJ, In(1)wmJ
Computed Breakpoints include

3C3;h26-h32;102C

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
irradiation
(Lefevre and Wilkins, 1966)
Class of aberration (relative to wild type)
inversion_cum_translocation
(FlyBase, 2007)
Class of aberration (relative to progenitor)
inversion_cum_translocation
(Gersh, 1967)
Breakpoints

[];h26--h32;102C

(Lefevre and Wilkins, 1966)

3C3;19;102C

(Gersh, 1967)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

wapl << bk1 << bb << bk3

Genetic mapping information
Comments
Comments on Cytology

The distal breakpoint in the X chromosome is to the right of w, the proximal breakpoint in the X chromosome is to the left of bb.

(Gersh, 1967)

The right breakpoint on the X chromosome is in the proximal heterochromatin well to the left of bb.

(Lefevre and Wilkins, 1966)

Limits of break 1 from polytene analysis (FBrf0018623) Limits of break 2 from polytene analysis (FBrf0017789) Limits of break 3 from polytene analysis (FBrf0017789)

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
 
w
(Lefevre and Wilkins, 1966)
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

    T(1;4)wmJ has no clear effect on the variegation of Sb caused by T(2;3)SbV, and T(2;3)SbV has no clear effect on the variegation of w caused by T(1;4)wmJ. In(2R)bwVDe2 and T(1;4)wmJ in combination show enhancement of variegation of one or both of w and bw, as measured by eye pigment levels.

    (Lloyd et al., 1997)
    NOT in combination with other aberrations

    T(1;4)wmJ/0 males show a marked reduction in viability.

    (Sinclair et al., 1989)

    The variegation of w is unorthodox because heterochromatin has been moved to the w locus rather than w moved into proximal heterochromatin.

    Stocks (0)
    Notes on Origin
    Discoverer

    Jonsson, 28th Sep. 1961.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
    Other Comments
     

    The XP4D element of the translocation has become separated from the 4PXD element and lost.

    Synonyms and Secondary IDs (6)
    Reported As
    Symbol Synonym
    In(1)wmJ
    (Sinclair et al., 1989, Tartof et al., 1984)
    T(1;4)wmJ
    (Lloyd et al., 2003)
    T(1;4)w-mJ
    T(1;4)wmJ
    wmJ
    (Lloyd et al., 2003, Lloyd et al., 1997, Tartof et al., 1984, Lefevre and Wilkins, 1966)
    Name Synonyms
    Translocation (1;4) white-mottled of Jonsson
    Secondary FlyBase IDs
    • FBal0018285
    References (9)