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General Information
D. melanogaster
Duplication (2;2) of George Yannopoulos
FlyBase ID
Computed Breakpoints include


Duplicated Segment
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Class of aberration (relative to wild type)



Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

salm << bk1 << esc << stc << bk2 << rd

Genetic mapping information

hobo insertion at distal breakpoint.

Mobile element hobo present at or near breakpoints of GYL derivatives (Hatzopoulou, 1987).

Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0038053) Right limit of break 1 from inclusion of esc (FBrf0047928) Left limit of break 2 from inclusion of ck (FBrf0038053) Right limit of break 2 from polytene analysis (FBrf0051973) Left limit of break 3 from polytene analysis (FBrf0038053) Right limit of break 3 from polytene analysis (FBrf0037137)

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
Complementation Data
Molecular Data
Genes Duplicated
Genes NOT Duplicated
Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations

Chromosome has no effect on the physical interaction between tandemly duplicated copies of w+ and z1, despite having breakpoints within the critical region.

Unstable rearrangement inducing a variety of spontaneous novel rearrangements

Enhances H (Ashburner, 1982). Unstable, transposing and producing shorter derivatives. Homozygous viable.

Stocks (0)
Notes on Origin

Recovered as apparent dp cn bw double recombinant from a test cross of a dysgenic male that was heterozygous for a maternally derived dp b cn bw second chromosome and a paternally derived autosome extracted from a natural population and capable of promoting male recombination.

Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments

Aberration has no effect on z but has breakpoints within the z critical region.

Synonyms and Secondary IDs (4)
Reported As
Symbol Synonym
Name Synonyms
Duplication (2;2) of George Yannopoulos
Secondary FlyBase IDs
    References (16)