FB2026_03 , released September 17, 2026
Aberration: Dmel\Df(2L)osp144
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General Information
Symbol
Df(2L)osp144
Species
D. melanogaster
Name
Deficiency (2L) outspread
FlyBase ID
FBab0001862
Feature type
chromosomal_deletion
Computed Cytological Breakpoints (relative to progenitor)

[35B1--35B2];[35B3--35B2]

Features within 35B1--35B2
Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
gamma ray
Class of aberration (relative to wild type)
chromosomal_deletion
Class of aberration (relative to progenitor)
chromosomal_deletion
(McNabb et al., 1996, Roote et al., 1996, Gubb et al., 1990, Ashburner et al., 1982)
Cytological Breakpoints (relative to progenitor)

[];[]

(McNabb et al., 1996, Roote et al., 1996, Gubb et al., 1990, Ashburner et al., 1982)
Causes alleles
nocosp144
(Roote, 1996.8)
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 hits noc << osp << bk2 << Adh

Genetic mapping information
Comments

Distal breakpoint hits noc.

(Roote, 1996.8)

Left and/or right breakpoints mapped to the DNA (Chia, Karp, McGill and Ashburner, 1985, J. Mol. Biol. 186: 689-706) Deleted for about 50 kb of DNA within both the osp and noc loci (McGill)

Comments on Cytology

Cytologically invisible deletion.

(McNabb et al., 1996, Roote et al., 1996, Gubb et al., 1990, Ashburner et al., 1982)

Left limit of break 1 from non-inclusion of elA (FBrf0038047) Right limit of break 1 from inclusion of noc (FBrf0038047) Left limit of break 2 from inclusion of osp (FBrf0038047) Right limit of break 2 from non-inclusion of Adh (FBrf0087599)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Adh
(Ashburner et al., 1982)
noc
(McNabb et al., 1996, Roote, 1996.8, Ashburner et al., 1982)
osp
(McNabb et al., 1996, Roote, 1996.8, Roote et al., 1996, Ashburner et al., 1982)
Partially deleted / disrupted
noc
(Roote et al., 1996)
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
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

    Does not suppress the zeste phenotype in a z1 w11E4; Tp(1;2)TE35B homologue.

    (Gubb et al., 1990)
    NOT in combination with other aberrations

    Chromosome has no effect on the physical interaction between tandemly duplicated copies of w+ and z1, despite having breakpoints within the critical region.

    (Gubb et al., 1990)
    Stocks (2)
    Notes on Origin
    Discoverer

    Detwiler.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    Reported to not delete Adhr in error; see FBrf0141768 for correction.

    (Roote et al., 1996)
    Synonyms and Secondary IDs (3)
    Reported As
    Symbol Synonym
    Df(2L)osp-144
    (Ashburner et al., 1982)
    Df(2L)osp144
    Name Synonyms
    Deficiency (2L) outspread
    Secondary FlyBase IDs
      References (10)