FB2026_02 , released June 18, 2026
Aberration: Dmel\C(1;Y)7
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General Information
Symbol
C(1;Y)7
Species
D. melanogaster
Name
FlyBase ID
FBab0010408
Feature type
hetero_compound_chromosome
Computed Breakpoints include
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
C(1)DX
Dp(1;Ybb-)BarS
Mutagen
detachment
Class of aberration (relative to wild type)
hetero_compound_chromosome
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
v1
y1
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

A Ybb- chromosome with the X euchromatin attached (in normal sequence) distal to YL. XYL.YS, y1 v1 bb- KL.bb- KS.

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
bb
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 (0)
    If no genes are listed here, it may be because the affected region is very large. The JBrowse insert above may show an error for the same reason, and other FlyBase tools such as CytoSearch may also fail for large regions. You can contact FlyBase for more help.
    In these cases, there will be no "Export to Hitlist" button to the left.
    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    male viable male fertile

    Stocks (1)
    Notes on Origin
    Discoverer

    Komma.

     

    derived by detachment of the distal In(1)dl-49 X of C(1)DX and its attachment to YL of BSYbb- with loss of BS; In(1)dl-49 replaced by recombination.

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    bb/C(1;Y)6, bb- females show an increase in the number of 18S + 28S ribosomal genes (magnification) in their offspring. rDNA-deficient chromosome carrying most of BS Ybb-

    Synonyms and Secondary IDs (3)
    Reported As
    Symbol Synonym
    C(1;Y)7
    X-Ybb-
    XYL.YS, bb-
    Name Synonyms
    Secondary FlyBase IDs
      References (2)