A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Dmel\P{EP}HsrωEP93D Insertion

General Information
Symbol Dmel\P{EP}HsrωEP93D Species D. melanogaster
Name FlyBase ID FBti0076969
Feature type transposable_element_insertion_site
Description
Inserted element P{EP} Expression data
Affected gene(s) Hsrω Viability / fertility viable, fertile
Causes allele(s) HsrωEP93D Stock availability none publicly available
LINE ID
Genomic Location
Chromosomal location 3R ( 93D4-93D5 ) Sequence location
Member of Large Scale Dataset(s)
Dataset

A set of transgenic insertion stocks derived by TE mobilization using the P-element construct P{EP}. The P{EP} construct construct carries a w[+mC] mini-white visible marker, Scer\UAS binding sites for the Scer\GAL4 transcriptional regulator, and bacterial sequences that allow plasmid rescue. The GAL4-UAS system allows regulated expression of genes proximate to the site of the insertion: genes properly oriented with respect to the Scer\UAS sequences can be conditionally expressed via transgene-derived Scer\GAL4 activity.
Insertion lines from this collection were mapped and assessed for inclusion in the Gene Disruption Project collection; flanking sequence data were submitted to GenBank.
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FB2013_03
FB2013_02
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hide Detailed Mapping Data
Chromosome (arm)
Sequence Location
Orientation
Cytological location
(computed by FlyBase)
93D4-93D5 ( near gene of known cytology )
Cytological location
(reported)
Comments concerning
location
hide Sequence Data
Flanking sequence
hide Inserted Element
Construct P{EP}
Location-dependent
role
mobile activating element (UASG)
Size 7.987Kb
Associated alleles
Molecular map
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Insertion may
affect gene
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Causes alleles
Lethality
References
Sterility
References
semi-fertile
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Statement
Reference
Expression of Hsrω[EP93D] under the control of Scer\GAL4[Act5C.PI] enhances the polytene chromosome condensation defects of Iswi[unspecified] mutants.
Expression of Hsrω[EP93D] in the Scer\GAL4[GMR.PF], Zzzz\CAG[127Q.Scer\UAS.T:Ivir\HA1], Df(3R)Hrb87F/+ background significantly enhances the appearence of black lesions on the eye surface, although it has no effect on mortality. Expression of nej[F2161A.Scer\UAS.T:SV5\V5] in the Scer\GAL4[GMR.PF], Zzzz\CAG[127Q.Scer\UAS.T:Ivir\HA1] background results in 23% lethality at the pupal stage. Surviving flies show a reduction in eye size and a greater disruption in ommatidial arrays. Additional co-expression of Hsrω[EP93D] results in a greater reduction in eye size, near complete loss of ommatidial arrays and bristles and the appearence of black lesions on the eye surface. Co-expression of Hsrω[EP93D] does not enhance pupal death.
Coexpression of one copy of Hsrω[EP93D] in the Scer\GAL4[GMR.PF], nej[F2161A.Scer\UAS.T:SV5\V5] background exaggerates the eye damage. Co-expression of Hsrω[EP93D] in the Scer\GAL4[GMR.PF], nej[dsRNA.Scer\UAS.cKa] background enhances eye degeneration with the loss of ommatidial integrity extending to most of the eye. Co-expression of Hsrω[EP93D] enhances the eye damage seen in Scer\GAL4[GMR.PF], nej[ΔNZK.Scer\UAS] flies.
Co-expression of Hsrω[EP93D] significantly enhances the Zzzz\CAG[127Q.Scer\UAS.T:Ivir\HA1], Scer\GAL4[GMR.PF] eye phenotype, leading to extensive black lesions on the eye surface. Co-expression of a single copy of P{Sym-UAS-Hsrω} eliminates the enhancing effect of Hsrω[EP93D] expression on the Zzzz\CAG[127Q.Scer\UAS.T:Ivir\HA1], Scer\GAL4[GMR.PF] eye phenotype, and also substantially reverses the eye degeneration primarily induced by Zzzz\CAG[127Q.Scer\UAS.T:Ivir\HA1].
Expression of two copies of Hsrω[EP93D] enhances the rough eye, photoreceptor degeneration, and increased apoptosis phenotypes seen in Scer\GAL4[GMR.PF]/Scer\GAL4[GMR.PF] flies. Co-expression of Hsrω[EP93D] leads to a slight enhancement of the eye phenotype in Scer\GAL4[GMR.PF],th[dsRNA.Scer\UAS.cLa] flies. Co-expression of Hsrω[EP93D] suppresses the pupal lethality of Scer\GAL4[GMR.PF],th[dsRNA.Scer\UAS.cLa] flies. Coexpression of Hsrω[EP93D] enhances the Scer\GAL4[GMR.PF], egr[Scer\UAS.cIa] eye phenotype, leading to severe head malformations and the formation of black lesions on the eye, though pupal lethality is not increased. Coexpression of Hsrω[EP93D] enhances the Scer\GAL4[GMR.PF], Tak1[Scer\UAS.cTa] eye phenotype, though pupal lethality is not increased.
Eyes of HsrωEP93D homozygous flies show disorganisation of ommatidial units.
The neurodegeneration phenotype caused by expression of Zzzz\CAG127Q.Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL4GMR.PF is enhanced by co-expression of HsrωEP93D under the control of Scer\GAL4GMR.PF; extensive black necrotic lesions are seen in the eye.
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Reporter Expression
Additional Information
Statement
Reference
Marker for
Reflects
expression of
Reporter construct
used in assay
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Line ID
Origin as a multiple insertion line
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Aberration
Balancer
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Reported As
Symbol Synonym
Secondary FlyBase IDs
hide References ( 9 )
Research paper
Onorati et al., 2011, PLoS Genet. 7(5): e1002096
The ISWI Chromatin Remodeler Organizes the hsrω ncRNA–Containing Omega Speckle Nuclear Compartments. [FBrf0213856]
Mallik and Lakhotia, 2010, Genetics 184(4): 927--945
Improved activities of CREB binding protein, heterogeneous nuclear ribonucleoproteins and proteasome following downregulation of noncoding hsromega transcripts help suppress poly(Q) pathogenesis in fly models. [FBrf0211742]
Mallik and Lakhotia, 2009, RNA Biol. 6(4): 464--478
RNAi for the large non-coding hsromega transcripts suppresses polyglutamine pathogenesis in Drosophila models. [FBrf0209246]
Mallik and Lakhotia, 2009, Genetics 183(3): 831--852
The developmentally active and stress-inducible noncoding hsromega gene is a novel regulator of apoptosis in Drosophila. [FBrf0209343]
Sengupta and Lakhotia, 2006, RNA Biol. 3(1): e1--e8
Altered expressions of the noncoding hsromega gene enhances poly-Q-induced neurotoxicity in Drosophila. [FBrf0199067]
Bellen et al., 2004, Genetics 167(2): 761--781
The BDGP gene disruption project: single transposon insertions associated with 40% of Drosophila genes. [FBrf0179132]
Rorth, 1996, Proc. Natl. Acad. Sci. U.S.A. 93(22): 12418--12422
A modular misexpression screen in Drosophila detecting tissue-specific phenotypes. [FBrf0090768]
FlyBase analysis
FlyBase Curators, 2013, Members of TE insertion collections.
Members of TE insertion collections. [FBrf0220668]
FlyBase, 1992-, FlyBase curation.
FlyBase curation. [FBrf0105495]