FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\Dp(1;1)Bar
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General Information
Symbol
Dp(1;1)Bar
Species
D. melanogaster
Name
Duplication (1;1) Bar
FlyBase ID
FBab0003035
Feature type
tandem_duplication
Computed Breakpoints include

16A1;16A7

Features within 16A1--16A7Features within 16A1--16B3 (Estimated cytology)
Genomic Maps
Sequence coordinates
X:17,334,493..17,334,493 (Dp(1;1)B:bk1)
(Miller et al., 2016)
X:17,537,969..17,537,969 (Dp(1;1)B:bk2)
(Miller et al., 2016)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
spontaneous
Class of aberration (relative to wild type)
tandem_duplication
(FlyBase, 2007)
Class of aberration (relative to progenitor)
tandem_duplication
(Tsubota, 1991, Hall and Kankel, 1976, Sutton, 1943)
Breakpoints

16A1;16A7

(Tsubota, 1991, Sutton, 1943)

15F9-16A1;16A7-16B1

(Hall and Kankel, 1976)
Causes alleles
Bar1
(Epps et al., 1997, Tsubota, 1991, Sutton, 1943)
Carries alleles
Transposon Insertions
roo{}B
(Miller et al., 2016)
Formalized genetic data

bk1 << B << bk2

Genetic mapping information
Comments

FlyBase curator comment: genomic coordinate updated from release 5 coordinate ( X:17 ,432,002) given in paper.

(Miller et al., 2016)

This Dp(1;1)B breakpoint lies in an intergenic region downstream of B-H2 and upstream of B-H1, and contains a roo element in the 5' to 3' orientation. FlyBase curator comment: genomic coordinate updated from release 5 coordinate ( X:17 ,228,526) given in paper.

(Miller et al., 2016)

Dp(1;1)B carries B-H1 (but not B-H2), together with an additional 7 other genes.

(Miller et al., 2016)

A roo-element insertion at the 16A7 breakpoint.

(Tsubota, 1991)
Comments on Cytology

All limits from polytene analysis (FBrf0005979)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Bar
(Sutton, 1943)
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
Genes Duplicated
Genes NOT Duplicated
Complementation Data
 
Molecular Data
 
B-H2
(Miller et al., 2016, Bel et al., 2011)
Affected Genes Inferred by Location (9)
Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations

Position-effect apparently resulting from juxtaposition of 16A1 with 16A7, which may undergo mutation to less extreme forms (e.g., Bi). Produces normal and triplicated Dp(1;1;1)BB products by unequal crossing over.

Stocks (0)
Notes on Origin
Discoverer

Tice.

(Sutton, 1943)

Tice, Feb. 1913.

 
Balancer / Genotype Variants of the Aberration
 
Separable Components
Other Comments
 
Synonyms and Secondary IDs (6)
Reported As
Symbol Synonym
B
(Higashijima et al., 1992)
B1
(Miller et al., 2016)
Bdup
(Sutton, 1943)
Dp(1;1)B
Dp(1;1)Bar
Name Synonyms
Duplication (1;1) Bar
Secondary FlyBase IDs
    References (15)