FB2025_01 , released February 20, 2025
Aberration: Dmel\In(1)y4
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General Information
Symbol
In(1)y4
Species
D. melanogaster
Name
FlyBase ID
FBab0004286
Feature type
chromosomal_inversion
Computed Breakpoints include

1B1;18A3-18A4

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
Class of aberration (relative to wild type)
chromosomal_inversion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_inversion
(Norton and Valencia, 1965)
Breakpoints

1A8-1B1;18A3-18A4

(Norton and Valencia, 1965)
Causes alleles
y4
(Campuzano et al., 1985)
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 hits y << fu << bk2 << smd

Genetic mapping information
Comments

Breakpoint(s) molecularly mapped

(Campuzano et al., 1985, Carramolino et al., 1982)

Left breakpoint between DNA coordinates 70.6 and 71.6 <up>to right of breakpoint of In(1)y3P (Campuzano et al., 1985)</up>.

Comments on Cytology

Limits of break 1 from complementation mapping against y (FBrf0042024) Limits of break 2 from polytene analysis (FBrf0042024)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
y
(Biessmann, 1985, Campuzano et al., 1985)
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

    In(1)y4/+ female produces about 2% exceptional sons from 4-strand double exchange in the inverted regions; In(1)y4/+/Y female produces about 7% secondary exceptions (Sturtevant and Beadle, 1936).

    Stocks (2)
    Notes on Origin
    Discoverer

    Serebrovsky.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (2)
    Reported As
    Symbol Synonym
    In(1)y4
    In(1)y4
    (Deak, 1977)
    Name Synonyms
    Secondary FlyBase IDs
      References (11)