FB2026_02 , released June 18, 2026
Aberration: Dmel\Df(3L)st-a20
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General Information
Symbol
Df(3L)st-a20
Species
D. melanogaster
Name
Deficiency (3L) scarlet
FlyBase ID
FBab0002406
Feature type
chromosomal_deletion
Computed Breakpoints include

73A3;73A4

Features within 73A3--73A4
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
Class of aberration (relative to wild type)
chromosomal_deletion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_deletion
(Belote et al., 1990, Tearle et al., 1989)
Breakpoints

73A3;73A4

(Tearle et al., 1989)

[];[]

(Belote et al., 1990)
Causes alleles
st14
(Belote et al., 1990)
Carries alleles
Transposon Insertions
Formalized genetic data

l(3)73Aa << bk1 << l(3)73Ab << bk2 hits st

Genetic mapping information
Comments

-45 to -40; +45 to +55. DNA coordinates (kb) of proximal breakpoints in the walk in region 73A-B of McKeown and Belote, which originates at the left breakpoint of In(3LR)sta27 ('+' values to right, '-' values to left). Df(3L)st-E coordinates from Butler et al., 1986; coordinate 0 halfway between right breakpoints of Df(3L)st-E5 and Df(3L)st-E52; positive values to the left

Comments on Cytology

Cytologically invisible deletion.

(Belote et al., 1990)

Left limit of break 1 from polytene analysis (FBrf0049915) Right limit of break 1 from inclusion of l(3)73Ab (FBrf0045766) Limits of break 2 from polytene analysis (FBrf0049915)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
l(3)73Ab
(McKeown et al., 1987)
st
(McKeown et al., 1987)
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
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
    NOT in combination with other aberrations
    Stocks (0)
    Notes on Origin
    Discoverer

    Belote and McKeown.

    (Belote et al., 1990)

    Belote.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    Df(3L)st-a20
    Name Synonyms
    Deficiency (3L) scarlet
    Secondary FlyBase IDs
      References (5)