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General Information
D. melanogaster
FlyBase ID
Computed Breakpoints include


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

1Lt - 3C2 | h26 - 5A2 | h32 - 1Rt ; 2Lt - 26D7 | 4E3 - 3C2 | h28 | 5A2 - 4E3 | 26D7 - 2Rt

Class of aberration (relative to wild type)
Class of aberration (relative to progenitor)


Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

crn << bk1 << N << snf << bk2 << l(1)air6

Genetic mapping information
Comments on Cytology

Region 3C1-3C2 through to 5A1-5A2 is broken in two pieces at 4E3 and inserted at 26D7, but separated by an appreciable amount of heterochromatin.

Limits of break 1 from polytene analysis (FBrf0063627) Limits of break 2 from polytene analysis (FBrf0034402) Limits of break 3 from polytene analysis (FBrf0063627) Limits of break 4 from polytene analysis (FBrf0063627)

Sequence Crossreferences
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
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
    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    Males are phenotypically normal, viable and fertile. XO males survive, but show w variegation similar to XY In(1)wm4 males.

    male viable male fertile male phenotypically wild-type X0 males viable X0 males show w variegation. Females heterozygous for the deficiency are phenotypically N. Females heterozygous for the deficiency almost sterile Males carrying the duplication are lethal hyperploid females are viable (Lefevre, 1968). hyperploid females are fertile (Lefevre, 1968).

    Stocks (0)
    Notes on Origin

    Lefevre, 13th Feb. 1964.

    Balancer / Genotype Variants of the Aberration
    Separable Components
    Other Comments
    Synonyms and Secondary IDs (6)
    Reported As
    Symbol Synonym
    Name Synonyms
    Secondary FlyBase IDs
      References (13)