FB2026_03 , released September 17, 2026
Aberration: Dmel\C(1)TM1
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General Information
Symbol
C(1)TM1
Species
D. melanogaster
Name
Compound (1) Tandem Metacentric
FlyBase ID
FBab0000098
Feature type
homo_compound_chromosome
Computed Cytological Breakpoints (relative to progenitor)
Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
In(1)EN
R(1)2
Mutagen
spontaneous
recombination
Class of aberration (relative to wild type)
homo_compound_chromosome
Class of aberration (relative to progenitor)
Cytological Breakpoints (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

C(1)TM1, +.In(1)sc8LENR, y Hw f . y+ y f; a normal sequence and In(1)EN attached proximally to a single centromere derived from R(1)2.

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

    Single crossover between the arms produces single-ring-X chromosome with the same structure as R(1)2 and an acentric-rod X chromosome. Tetrad distribution about normal (Novitski, 1951, Genetics 36: 267-80; Novitski and Sandler, 1956, Genetics 41: 194-206.

    Stocks (0)
    Notes on Origin
    Discoverer

    Novitski, 1950.

     

    Product of one crossover between + and R(1)2 and one between In(1)EN and R(1)2 in a +/R(1)2/In(1)EN triploid

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    C(1)TM1
    Name Synonyms
    Compound (1) Tandem Metacentric
    Secondary FlyBase IDs
      References (4)