FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\Df(1)R21
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General Information
Symbol
Df(1)R21
Species
D. melanogaster
Name
Deficiency (1) of Rahman
FlyBase ID
FBab0000626
Feature type
chromosomal_deletion
Computed Breakpoints include

[20A2--20A3];[>h26]

Features within 20A2--h26
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
(Rahman and Lindsley, 1981)
Class of aberration (relative to wild type)
chromosomal_deletion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_deletion
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

eo << bk1 << flam << bb << bk2

Genetic mapping information
Comments
Comments on Cytology

Left limit of break 1 from non-inclusion of eo (FBrf0036523) Right limit of break 1 from inclusion of flam (FBrf0080334) Left limit of break 2 from inclusion of bb (FBrf0036523)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
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
 
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

    Deficiency heterozygotes between Df(1)B12 or Df(1)LB6 and Df(1)R21, Df(1)16-2-13 or Df(1)DCB1-35c are viable, fertile and do not display any visible phenotype.

    (Prud'homme et al., 1995)

    Fertile when in combination with Dp(1;Y)mal+ or Dp(1;Y)y+mal126, but lethal in combination with Dp(1;Y)BarSYy+.

    (Rahman and Lindsley, 1981)
    NOT in combination with other aberrations
    Stocks (2)
    Notes on Origin
    Discoverer

    Rahman.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    One of a series of deficiencies for su(f) selected on the basis of the distinctive su(f)/Df(1)su(f) phenotype (Minute-like).

    Synonyms and Secondary IDs (4)
    Reported As
    Symbol Synonym
    Df(1)R21
    (Kavlie et al., 2010)
    R-21
    (Rahman and Lindsley, 1981)
    R21
    (Robert et al., 2001)
    Name Synonyms
    Deficiency (1) of Rahman
    Secondary FlyBase IDs
      References (7)