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General Information
D. melanogaster
FlyBase ID
Sequence coordinates
X:103,614..103,614 (Dp(1;Y)BSC81:bk1)
X:493,529..493,529 (Dp(1;Y)BSC81:bk2)
X:2,589,001..2,681,641 (Dp(1;Y)BSC81:bk3)
X:3,689,139..3,689,139 (Dp(1;Y)BSC81:bk4)
Member of large scale dataset(s)

After generating all the Dp(1;Y)BSC chromosomes as described in FBrf0212582, we calculated the minimal euchromatic coverage of the X chromosome provided by these duplications as 97.0%.

Series of Dp(1;Y) stocks carrying segments of the X chromosome on the tip of Y chromosome; in an isogenic background. At the time of publication (FBrf0212582), the Dp(1;Y) collection provided a minimum of 78% coverage with duplication breakpoints spaced a median of nine genes apart.

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

This is 1Lt, not an induced breakpoint.

Comments on Cytology

Dp(1;Y)BSC81 was generated from C(1;Y)N12, In(1)BSC3 by a large deletion. The proximal deletion breakpoint fell between X:22366703 (20F3, Release 5) and h28--h29. Consequently, no basal euchromatic genes distal to stnA are present on Dp(1;Y)BSC81.

Dp(1;Y)BSC81 carries five regions from the X chromosome. Three segments are appended to YS: a distal X segment (1Lt;1B5, X:1Lt ;387562 (R5)), a medial X segment (3A6-3B1;3E4, X:2483034..2575674 ;3583172) and a basal X segment that extends distally from a point in centric heterochromatin distal to bb to a point either in X heterochromatin or in basal euchromatin. An X segment extending proximal from a point between fog and stnA ( X:22228492..22384175 ) to an unknown point in X heterochromatin and a small X segment from 16A carrying B[S] are appended to YL.

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
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
Stocks (1)
Notes on Origin
Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments
Synonyms and Secondary IDs (1)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (4)