FB2026_02 , released June 18, 2026
Aberration: Dmel\C(1)TM2
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General Information
Symbol
C(1)TM2
Species
D. melanogaster
Name
FlyBase ID
FBab0000099
Feature type
homo_compound_chromosome
Computed Breakpoints include
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
C(1;YL)1
Mutagen
X ray
Class of aberration (relative to wild type)
homo_compound_chromosome
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

C(1)TM2, +.In(1)sc4LENR; originally y cv v sd . y sn g. The sequence in mitotic prophase is: the normal X euchromatin, two large heterochromatic segments, a small segment, the centromere, a small segment, the inverted X euchromatin.

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.
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    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    Recombination between the arms produces a single-ring-X chromosome and an acentric, rod-X chromosome. Meiotic behavior similar to that of C(1)TM1; tetrad distribution about normal.

    Stocks (0)
    Notes on Origin
    Discoverer

    Lindsley and Sandler, 1963.

     

    exchange of the proximal heterochromatin of a normal X and YL of X.YL, In(1)sc4LENR

    Induced on: C(1;YL)1 In(1)sc4LENR.

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    C(1)TM2
    TMX y
    Name Synonyms
    Secondary FlyBase IDs
      References (2)