FB2026_02 , released June 18, 2026
Aberration: Dmel\C(1)94-2A
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General Information
Symbol
C(1)94-2A
Species
D. melanogaster
Name
FlyBase ID
FBab0000078
Feature type
homo_compound_chromosome
Computed Breakpoints include
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order

| 1A - 5E | 1F - 1A . 20 - 5E | 1F - 20 |

Progenitor
C(1)TR94-2
Mutagen
spontaneous
Class of aberration (relative to wild type)
homo_compound_chromosome
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
y1
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

Ring shaped in mitotic metaphase.

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
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

    Crossing over in region 1F - 6A produces a single ring carrying In(1)94-2A = In(1)1F-2A;5E-6A. Reversibly convertible to other double-ring configurations by other types of exchange (e.g., Novitski and Braver, 1954, Genetics 39: 197-209).

    Stocks (0)
    Notes on Origin
    Discoverer

    Rosenfeld, 1964.

     

    Possibly X ray induced premeiotically. Apparently arose through an asymmetrical or reversed exchange between the 1F region near the centromere and the 5E region near the interstitial heterochromatin

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    "spontaneous" was stated as tentative. Originally heterozygous for cv1, sn1, v1, g1, and sd1.

    Synonyms and Secondary IDs (1)
    Reported As
    Symbol Synonym
    C(1)94-2A
    Name Synonyms
    Secondary FlyBase IDs
      References (2)