FB2026_02 , released June 18, 2026
Aberration: Dmel\Df(2L)frtz19
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General Information
Symbol
Df(2L)frtz19
Species
D. melanogaster
Name
FlyBase ID
FBab0028906
Feature type
chromosomal_deletion
Computed Breakpoints include
Features within 22A2--22B1
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
(Collier et al., 2005)
Class of aberration (relative to wild type)
chromosomal_deletion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_deletion
(Collier et al., 2005, Collier and Roote, 2000.6.19, Roote, 1999.11.22)
Breakpoints

22A2--3;[]

(Roote, 1999.11.22)

22A2-22A3;22B1

(Collier et al., 2005, Collier and Roote, 2000.6.19)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

Second break reported as 22B7 but subsequent data (Collier and Roote, 2000.6.19, personal communication to FlyBase) suggests that this had been a book-keeping error.

(Roote, 1999.11.22)
Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
frtz
(Collier et al., 2005, Roote, 1999.11.22)
Partially deleted / disrupted
Molecular Data
Completely deleted
mRpL48
(Marygold et al., 2007)
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
diehard1
(Lee, 2012)
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 (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
    NOT in combination with other aberrations

    Flies heterozygous for the deletion do not show a Minute bristle phenotype.

    (Marygold et al., 2007)
    Stocks (2)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     

    The Df(2L)frtz19 chromosome acts as a dominant weak suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{wvar}KR3-2", a stable "brown-red" variant of the P{3'WP-2,wvar}2Lt insertion), but this is a false positive result (the suppressor is not within the bounds of the deficient region) because the region of the deficiency is covered by one or more nonsuppressing deficiencies.

    (Mason et al., 2004)
    Synonyms and Secondary IDs (4)
    Reported As
    Symbol Synonym
    D(2L)frtz19
    (Mason et al., 2004)
    Df(2L)frtz19
    (Lee, 2012)
    GJ66/69
    (Collier et al., 2005)
    fritz19
    (Collier et al., 2005)
    Name Synonyms
    Secondary FlyBase IDs
      References (7)