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General Information
D. melanogaster
Inversion (1) white-variegated of Catcheside
FlyBase ID
Feature type
Computed Breakpoints include


Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order

| 1A4-3C1 | 20F-3C2 | 20F |

Class of aberration (relative to wild type)
Class of aberration (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments on Cytology

All limits from polytene analysis (citation unavailable)

Sequence Crossreferences
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
Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations

Dominant male lethal.

eyes mottled wvC/+ females may be N X/Y male viability reduced X/Y/Y male more viable. Characterized by variable degree of instability manifested by production of gynandromorphs, X/0 males and dominant lethals. An extreme example gave 140 females, 106 gynandromorphs, 181 X/0 males and 868 dominant lethals among 1295 putative ring/rod zygotes. Small ring-shaped duplications are generated infrequently (analysis by Hinton, 1955). Behavior of rod derivatives of In(1)wvC (Hinton, 1957, Genetics 42: 55-65) suggests generation of dicentrics through sister-strand fusion rather than exchange. Fusion postulated to occur in heterochromatin of the 3C1 | 20F reunion point of In(1)wvC. Mitotic abnormalities in cleavage of In(1)wvC embryos described (Hinton, 1959, Genetics 44: 923-31). Chromosome tends to become stable in stocks. Viability and fertility correlated with stability. Widely used in mosaic analysis and fate mapping (e.g., Garcia-Bellido and Merriam, 1969, J. Exp. Zool. 170: 61-76).

Stocks (5)
Notes on Origin


Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments
Synonyms and Secondary IDs (4)
Reported As
Symbol Synonym
Name Synonyms
Inversion (1) white-variegated of Catcheside
Secondary FlyBase IDs
  • FBal0018318
References (9)