FB2026_02 , released June 18, 2026
Aberration: Dmel\Df(Y)bb-76
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General Information
Symbol
Df(Y)bb-76
Species
D. melanogaster
Name
FlyBase ID
FBab0047558
Feature type
chromosomal_deletion
Computed Breakpoints include
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Dp(1;Y)y+-P{FRT(RS3r).y}10B
(Paredes and Maggert, 2009)
Mutagen
I-CreI
(Paredes and Maggert, 2009)
Class of aberration (relative to wild type)
chromosomal_deletion
(Paredes and Maggert, 2009)
Class of aberration (relative to progenitor)
chromosomal_deletion
(Paredes and Maggert, 2009)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments

I-CreI has been used to generate a deletion within the Ybb rRNA array (a degenerate consensus for the I-CreI endonuclease is present within the Ybb array): the size of the Ybb rDNA array is reduced compared to the progenitor chromosome.

(Paredes and Maggert, 2009)
Comments on Cytology
Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Ybb
(Paredes and Maggert, 2009)
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Ybb
(Paredes and Maggert, 2009)
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.
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    Phenotypic Data
    In combination with other aberrations

    C(1)DX/Df(Y)bb-76 males (in which the Df(Y)bb-76 chromosome is the only source of rDNA as C(1)DX lacks bb) show a bobbed mutant phenotype.

    (Paredes and Maggert, 2009)

    Df(Y)bb-76 is a suppressor of the position effect variegation (PEV) at the w locus seen in the In(1)wm4 chromosome.

    (Paredes and Maggert, 2009)

    The PEV at the lt locus seen in the T(2;3)ltX13 chromosome is enhanced by Df(Y)bb-76.

    (Paredes and Maggert, 2009)
    NOT in combination with other aberrations
    Stocks (0)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (4)
    Reported As
    Symbol Synonym
    Df(Y)bb-76
    YrDNA-0.85
    (Paredes and Maggert, 2009)
    bb-76
    (Paredes and Maggert, 2009)
    y+Y10B, YrDNAbb-76
    (Paredes and Maggert, 2009)
    Name Synonyms
    Secondary FlyBase IDs
      References (2)