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General Information
D. melanogaster
FlyBase ID
Feature type
Also Known As
Δspt16, Df(3L)Aprt21
Computed Breakpoints include
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
Genetic mapping information
Comments on Cytology
Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
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
Phenotypic Data
In combination with other aberrations

Df(3L)Aprt-21 dominantly enhances the position effect variegation of the w gene caused by In(1)wm4.

NOT in combination with other aberrations

78% of Ubx130, Df(3L)Aprt-21, Trl13C triple heterozygotes have halteres that quite heterogeneous in size and larger than Ubx130 alone, also exhibiting a stronger phenotype than any two of the alleles used. The haltere becomes a wing -like structure with wing veins and hairs on the wing margin. Heterozygotes have an average of about 9 sex combs, compared to about 11 in wild-type. 30% of animals have bristles on segment abdominal segment 6 (wild-type have none).

Stocks (0)
Notes on Origin
Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments
Synonyms and Secondary IDs (3)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (4)