FB2026_03 , released September 17, 2026
Aberration: Dmel\Dp(3;3)Mtn+H22
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General Information
Symbol
Dp(3;3)Mtn+H22
Species
D. melanogaster
Name
Duplication (3;3) Metallothionein
FlyBase ID
FBab0003788
Feature type
tandem_duplication
Computed Cytological Breakpoints (relative to progenitor)

85E10;[>85E15]

Features within 85E10--85E15
Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
spontaneous
(Otto et al., 1986)
unequal recombination
Class of aberration (relative to wild type)
tandem_duplication
(FlyBase, 2007)
Class of aberration (relative to progenitor)
tandem_duplication
Cytological Breakpoints (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << MtnA << bk2

Genetic mapping information
Comments

Direct tandem duplication of 2.2kb DNA that includes the entire MtnA transcription unit, 228bp of 5' flanking sequence and 1.4kb of 3' flanking sequence. Polytene chromosomes appear normal.

(Otto et al., 1986)
Comments on Cytology

All limits from polytene analysis (citation unavailable)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
Genes Duplicated
Complementation Data
Completely duplicated
MtnA
(Otto et al., 1986)
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.
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    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    Flies are more resistant to cadmium toxicity than wild-type strains.

    (Otto et al., 1986)

    Homozygous viable homozygous fertile. Shows increased tolerance to Cd ions. Can be induced to produce twice as much metallothionein RNA as wild type.

    Stocks (0)
    Notes on Origin
    Discoverer

    Otto and Maroni.

     

    population under selection for cadmium resistance

    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    Recovered from a wild-type population under selection for cadmium resistance.

    (Otto et al., 1986)
    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    Dp(3;3)Mtn+H22
    Dp(3;3)Mtn+H22
    Dp(3;3)MtnH22
    (Otto et al., 1986)
    Dp(3;3)MtnA+H22
    Name Synonyms
    Duplication (3;3) Metallothionein
    Secondary FlyBase IDs
      References (3)