FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Aberration: Dmel\T(1;Y)V7
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General Information
Symbol
T(1;Y)V7
Species
D. melanogaster
Name
FlyBase ID
FBab0006943
Feature type
chromosomal_translocation
Also Known As
T(X;Y)V7
Computed Breakpoints include

16F5-16F7;h18-h25B

Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Dp(1;Y)BarSYy+
Mutagen
X ray
(Mallart et al., 1991, Ferrus et al., 1990)
Class of aberration (relative to wild type)
chromosomal_translocation
(FlyBase, 2007)
Class of aberration (relative to progenitor)
chromosomal_translocation
(Balakrishnan and Rodrigues, 1991, Mallart et al., 1991, Ferrus et al., 1990, Homyk and Emerson, 1988)
Breakpoints

16F5-16F8;h1-h25B

(Balakrishnan and Rodrigues, 1991, Mallart et al., 1991, Homyk and Emerson, 1988)

16F5-16F7;h18-h25

(Ferrus et al., 1990)
Causes alleles
Frq2V7
(Romero-Pozuelo et al., 2007, Johnson et al., 2002, Ferrus, 1999.3.4, Pavlidis and Tanouye, 1995, de la Pompa, 1994, Rivosecchi et al., 1994, Balakrishnan and Rodrigues, 1991, Mallart et al., 1991, Mallart et al., 1991, Ferrus et al., 1990)
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 hits Frq1 << bk2

Genetic mapping information
Comments

The expression of Frq2 is increased two- to three-fold in T(1;Y)V7 animals, while there is no increase in the expression of Frq1.

(Romero-Pozuelo et al., 2007)

Breakpoint(s) molecularly mapped

(Baumann et al., 1987)
Comments on Cytology

Ref: FBrf0037273.

(Homyk and Emerson, 1988)

Left limit of break 1 from polytene analysis (FBrf0048188) Right limit of break 1 from polytene analysis (FBrf0051942) Left limit of break 2 from polytene analysis (FBrf0051942) Right limit of break 2 from polytene analysis (FBrf0048188)

Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Frq1
(Pongs et al., 1993)
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
 
wupA
(Firdaus et al., 2015)
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

    Shows a shaking mutant phenotype.

    (de la Pompa, 1994)

    Giant cervical axons show more than one action potential in response to a single stimulus (FBrf0037273). Larval neuromuscular junctions show increased neurotransmitter release under high frequency stimulation (FBrf0054505). Larval muscle fibres respond with large excitatory junction potentials (EJPs) to high frequency motor nerve stimulations.

    (Pongs et al., 1993)

    Shows a leg shaking mutant phenotype. The severity of the sucrose preference defect shows the following order: Sh8 > Sh5 = Sh7 > Sh25 > T(1;Y)V7 > Sh14. The degree of tolerance to 0.5M NaCl shows the order: Sh8 > Sh7 = Sh5 > T(1;Y)V7 = Sh25 > Sh14. The degree of tolerance to 0.2M KCl shows the order: Sh8 = Sh7 = Sh14 > T(1;Y)V7 > Sh5.

    (Balakrishnan and Rodrigues, 1991)

    Individuals exhibit a shaking phenotype.

    (Ferrus et al., 1990)

    Flies show some physiological abnormalities though they do not shake and have IA in pupal muscle.

    (Papazian et al., 1987)

    Mutants show leg shaking and abnormal CGF action potential.

    (Tanouye et al., 1981)

    Male viable. Weak shaking phenotype. T(1;Y)/0 male fertile

    Stocks (2)
    Notes on Origin
    Discoverer

    Kennison.

     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
    Other Comments
     
    Synonyms and Secondary IDs (2)
    References (26)