FB2026_03 , released September 17, 2026
Aberration: Dmel\In(3R)tll
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General Information
Symbol
In(3R)tll
Species
D. melanogaster
Name
Inversion (3R) tailless
FlyBase ID
FBab0005805
Feature type
chromosomal_inversion
Computed Cytological Breakpoints (relative to progenitor)

85F10-86A1;100B1

Sequenced Breakpoints (relative to progenitor)
3R:30,851,400..30,852,309 [+] (In(3R)tll:bk1)
(Pignoni et al., 1990)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Mutagen
X ray
(Diaz et al., 1996)
spontaneous
(Strecker et al., 1986)
Class of aberration (relative to wild type)
chromosomal_inversion
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_inversion
Cytological Breakpoints (relative to progenitor)
Causes alleles
tll2
(Diaz et al., 1996, Pignoni et al., 1990, Strecker et al., 1986)
Carries alleles
Transposon Insertions
Formalized genetic data

bk2 hits tll

Genetic mapping information
Comments

Breakpoint 1 was linked to a Sst-PstI restriction fragment. The position of the restriction fragment on the reference sequence was inferred by a FlyBase curator.

(Pignoni et al., 1990)

Breakpoint(s) molecularly mapped

(Pignoni et al., 1990)
Comments on Cytology

Limits of break 1 from polytene analysis (citation unavailable) Limits of break 2 from complementation mapping against tll (FBrf0044169)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
tll
(Diaz et al., 1996, Strecker et al., 1986)
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
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 (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

    Lack hindgut, Malpighian tubules and much of the posterior midgut.

    (Pignoni et al., 1990)

    When in heteroallelic combination with tll1, embryos lack telson but have normal eighth abdominal denticle belt and pharyngeal ridges.

    Stocks (0)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (5)
    Reported As
    Symbol Synonym
    In(3R)tll
    In(3R)tll2
    In(3R)tll2
    (Pignoni et al., 1990)
    tll2
    Name Synonyms
    Inversion (3R) tailless
    Secondary FlyBase IDs
      References (6)