FB2026_02 , released June 18, 2026
Aberration: Dmel\T(1;2;4)N264-85
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General Information
Symbol
T(1;2;4)N264-85
Species
D. melanogaster
Name
Translocation (1;2;4) Notch
FlyBase ID
FBab0006236
Feature type
chromosomal_translocation
Computed Breakpoints include

3C1;6A2;60A4-60A5;101F-102A

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order

1Lt - 3B3 | 60A3 - 2Lt ; 1Rt - 6B2 | 60A5 - 2Rt ; 4Lt - 101F | 3C1 - 6A1 | 102A - 4Rt

(Demerec, 1940)
Progenitor
Mutagen
X ray
(Demerec, 1940)
Class of aberration (relative to wild type)
chromosomal_translocation
Class of aberration (relative to progenitor)
Breakpoints

3C1;6A1--2;[];101F--102A

(Sutton, 1940)

3B3-3C1;6A1-6B2;60A3-60A5;101F-102A

(Demerec, 1940)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << N << bk2

Genetic mapping information
Comments
Comments on Cytology

The doublet 6A3-6A4 is unaccounted for and it may either be deleted or it may be obscured in salivary chromosome preparations because of the distortion caused by the rearrangement.

(Demerec, 1940)

Limits of break 1 from polytene analysis (FBrf0005041) Left limit of break 2 from polytene analysis (citation unavailable) Right limit of break 2 from polytene analysis (FBrf0005041) Left limit of break 3 from polytene analysis (citation unavailable) Right limit of break 3 from polytene analysis (FBrf0005044) Limits of break 4 from polytene analysis (FBrf0005041)

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

    Variegation for fa in N/fa

    Stocks (0)
    Notes on Origin
    Discoverer

    Demerec, April 1939.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
    Other Comments
     

    Carries normal allele of ci (Stern).

    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    N264-85
    (Demerec, 1940)
    N264-85
    T(1;2;4)264-85
    (Sutton, 1940)
    T(1;2;4)N264-85
    Name Synonyms
    Translocation (1;2;4) Notch
    Secondary FlyBase IDs
    • FBal0012826
    References (4)