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General Information
D. melanogaster
FlyBase ID
Feature type
Computed Breakpoints include


Deleted Segment
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Class of aberration (relative to wild type)




Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

rod << bk1 << Med << bk2

Genetic mapping information
Comments on Cytology

Right breakpoint is at the tip of 3R.

Left limit of break 1 from polytene analysis (FBrf0048198) Right limit of break 1 from polytene analysis (citation unavailable) Limits of break 2 from polytene analysis (FBrf0048198)

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
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

Effect on variegation of y in In(1)y3P and Sb in T(2;3)SbV studied: inactivation of y occurs independently of inactivation of Sb.

Dominantly enhances position effect variegation at the w locus caused by In(1)wm4, C(1;YL)wmMc or T(1;4)wm5 and position effect variegation at the y locus caused by In(1)y3P. Position effect variegation at the w locus is not seen when Df(3R)E40 is combined with In(1)wm4rv5, In(1)wm4rv6 or In(1)wm4rv26.

NOT in combination with other aberrations

Deficient embryos show a variably penetrant mutant midgut phenotype: central constriction absent.

Homozygous embryos do not complete head involution or dorsal closure, and tracheae are not connected. Midgut constrictions are incomplete, Malpighian tubules have a variable diameter along their length and the hindgut is sometimes shorter than normal.

Strictly maternal enhancer of dpphr4 lethality. The lethal interaction is due to a loss of dorsal-most fates in the embryos, demonstrated by loss of amnioserosa cells.

Homozygous lethal.

Stocks (0)
Notes on Origin
Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments
Synonyms and Secondary IDs (2)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (14)