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General Information
D. melanogaster
FlyBase ID
Feature type
Computed Breakpoints include
Sequence coordinates
X:22,826,656..22,982,339 (C(1;Y)N12:bk1)
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

The tip of YL in C(1;Y)N12 contains a portion of region 16A near the B gene and the base of the X distal to bb (this is because T(1;Y)N12 was isolated from a reciprocal translocation between a normal sequence X and Dp(1;Y)BSYy+). Comparative Genome Hybridization microarrays of chromosomes derived from C(1;Y)N12 indicate that the distal breakpoint of this basal X segment lies between Release 5 coordinate X:22228492 in fog and coordinate X:22384175 in stnA. In addition, genes proximal to stnA are duplicated in this segment. The proximalmost extent of this segment extends at least to coordinate X:22416503 in CG13865. No evidence has been see for a large duplicated segment encompassing the B-H1 and B-H2 genes in 16A using Comparative Genome Hybridization microarrays, but the resolution of the microarrays is not high enough to exclude the possibility of a small duplicated segment from the region.

Comments on Cytology

Since C(1;Y)N12 carries all X-linked genes except bb and all Y genes, it can be considered a compound-XY chromosome.

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 (0)
    Notes on Origin
    Balancer / Genotype Variants of the Aberration
    Separable Components
    Other Comments
    Synonyms and Secondary IDs (3)
    Reported As
    Symbol Synonym
    XDYP N-12
    Name Synonyms
    Secondary FlyBase IDs
      References (3)