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General Information
D. melanogaster
FlyBase ID
Feature type
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)
Class of aberration (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

tw << bk1 << bk2 << wap

Genetic mapping information
Comments on Cytology

Left limit of break 1 from polytene analysis (citation unavailable) Right limit of break 1 from polytene analysis (FBrf0020414) Right limit of break 2 from non-inclusion of wap (citation unavailable)

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

only a weak effect on the number of chaetae in the presence of h and emc wild type alleles. In h and emc mutant homozygous flies the increase in chaetae is proportional to the doses of the achaete-scute complex.

Disjoins regularly from XY, shows 3% nondisjunction from C(1)RM and causes 18% nondisjunction of In(1)dl-49 from + in In(1)dl-49/+/Dp(1;f)3 female.

Stocks (1)
Notes on Origin

Weltman, 1954.


deletion of most of X euchromatin

Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments

Hybrids from the cross D.melanogaster C(1;Y)10/Dp(1;f)3 males and D.sechellia females are non-viable.

Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (16)