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General Information
D. melanogaster
FlyBase ID
Feature type
Computed Breakpoints include
Sequence coordinates
X:16,363,428..16,363,994 [+] (Df(1)4b18:bk2)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Class of aberration (relative to wild type)
Class of aberration (relative to progenitor)
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << l(1)9e3-21 << l(1)XR49 << bk2 << nonA

Genetic mapping information
Comments on Cytology

Limits of break 1 from polytene analysis (FBrf0064715) Left limit of break 2 from inclusion of U2af50 (FBrf0064715) Right limit of break 2 from polytene analysis (FBrf0064715)

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
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
    Phenotypic Data
    In combination with other aberrations

    Larval mouthpart structures appear normal in Df(1)4b18 embryos when Dp(1;4)81j6e is also present.

    Transmission rate of Dp(1;f)J21A through females to progeny is 28%, Df(1)4b18 weakly decreases transmission.

    NOT in combination with other aberrations

    Hemizygous male embryos lack the base of the mouth hooks and dental sclerites. The lateral process is truncated near the H-piece, which is also disrupted. The few remaining cirri are misshapen and disorganised. The maxillary portion of the maxillary sense organ does not fuse with the antennal portion.

    Heterozygous adults show a weakly penetrant β lobe fusion phenotype in the central brain.

    Does not cause unconditional lethality in hybrid females when heterozygous with D.simulans chromosome.

    No second site non-complementing phenotype with zipEbr and zipmhc-c6.1.

    Stocks (3)
    Notes on Origin
    Balancer / Genotype Variants of the Aberration
    Separable Components
    Other Comments

    70kb deletion that breaks within the second exon of the nonA gene.

    Synonyms and Secondary IDs (1)
    Reported As
    Name Synonyms
    Secondary FlyBase IDs
      References (19)