FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\Df(2R)ToporsAA
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General Information
Symbol
Df(2R)ToporsAA
Species
D. melanogaster
Name
FlyBase ID
FBab0038098
Feature type
chromosomal_deletion
Computed Breakpoints include
Features within 56A2--56A2
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
P{EP}prodEP2435
(Secombe and Parkhurst, 2004)
Mutagen
Delta2-3 transposase
(Secombe and Parkhurst, 2004)
Class of aberration (relative to wild type)
chromosomal_deletion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
ToporsAA
(Secombe and Parkhurst, 2004)
prodAA
(Secombe and Parkhurst, 2004)
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
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
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
prod
(Secombe and Parkhurst, 2004)
Topors
(Secombe and Parkhurst, 2004)
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

    In contrast to wild type, Df(2R)ToporsAA homozygous spermatocytes exhibit highly involuted nuclear membranes with irregular perinuclear space. Nuclear blebbing is observed in late-stage Df(2R)ToporsAA spermatocytes, though it is variable. Blebbing is not observed in testis sheath cells, larval neuroblasts or the giant nuclei of the larval salivary gland cells.

    (Matsui et al., 2011)
    Stocks (1)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    Df(2R)ToporsAA
    Df(dtoporsAA)
    (Matsui et al., 2011)
    Name Synonyms
    Secondary FlyBase IDs
      References (3)