A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\wtsx1

General Information
SymbolDmel\wtsx1SpeciesD. melanogaster
NameFlyBase IDFBal0044527
Feature typealleleAssociated geneDmel\wts
Also Known AslatsX1, wtslatsX1
Allele classloss of function allele, amorphic allele - genetic evidence
Mutagen
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Description
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FB2013_03
FB2013_02
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Mutagen
Mutations Mapped to the Genome
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Associated Sequence Data
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Protein sequence
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Cytology
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dorsal multidendritic neuron ddaC | somatic clone & dendritic tree
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Reference
Cells in homozygous clones in the wing disc accumulate F-actin near the apical surface.
wts[x1] mutants show a progressive loss of dendritic branches in class IV neurons without affecting axons.
Clones of tissue harbouring wts[x1] generated in the eye using the eyFlp/MARCM system overgrow dramatically and cause lethality at late third instar larval or early pupal stages of development. Eye discs substantially over-grow when wts[x1] clones are generated using eyFlp/MARCM, with wts[x1] clones occupying almost the entire eye disc. Very few presumptive ommatidial clusters are observed and there is no obvious sign of the morphogenetic furrow.
wts[x1] mutant cell clones display a large size and occupy large territories of wing and eye discs.
wts[x1] mutant MARCM clones contain 5-7 cells per clone, compared to 2-3 cells in wild-type clones. These clones contain differentiated absorptive enterocytes and secretory enteroendocrine cells indicating that intestine stem cell differentiation continues as in wild-type.
Induction of wts[x1] clones in third instar larval eye discs (generated using the eyFLP technique) results in massive overgrowth, with mutant cells covering almost the entire eye disc. The discs appear deformed with a folded excessive epithelium. No animals progress beyond the pupal stage.
Homozygous clones in the wing disc have a growth advantage; the ratio of mutant clone area: area of the wild-type twin spot is 2.93.
wts[x1] homozygous mutant clones generated in the male germline develop normally. 16 cells are observed per cyst, and cell size and morphology are indistinguishable from neighbouring control cells.
Adult eyes carrying homozygous mutant clones are overgrown.
Mutant eye discs (generated using the eyFLP-cell lethal system) show epithelial disorganisation. Neuronal differentiation is strongly impaired in these eye discs.
Heterozygous larvae show no significant defects in dendrite morphology of ddaC neurons. Heterozygous males do not have ectopic sex combs on the second or third legs.
Eye and wing imaginal discs heterozygous for wtsx1 are normal in size and morphology and are indistinguishable from wild-type discs.
Apoptosis is reduced by up to 3-fold in wtsx1 clones of wing or eye discs in response to γ-rays compared to wild-type tissue.
Compared to wild-type ddaC (dorsal dendrite arborization neuron C) neurons, wts[x1] MARCM clones exhibit a severe and highly penetrant simplification of dendritic trees, with a significantly reduced number and length of dendritic branches, and hence a greatly reduced dendritic field. In contrast to the severe dendritic defects caused by loss of wts function, wts[x1] MARCM clones of ddaC axons enter the ventral nerve cord at the appropriate position and show arborization patterns very similar to wild-type controls, with their axons terminating on the innermost fascicle and sending ipsilateral branches anteriorly and posteriorly and sometimes also a collateral branch towards the midline. wts[x1] heterozygotes do not exhibit an obvious dendritic phenotype.
The mid-pupal retina of wts[x1]/wts[x1] animals contains a large excess of inter-ommatidial cells. The resulting adult eyes are distorted and lumpy.
wtsx1 adults show tumor formation at extremely high penetrance. Each tumor represents a separate event as the tumors do not metastasize.
Mutant clones in the eye disc result in noninvasive tumours that never move from the head region.
When somatic clones of wtsx1 homozygous cells are generated throughout the eye disc using Scer\FLP1ey.PN, none resulting animals survive to eclosion.
When wtsx1 clones are made in the developing eye more cell divisions are seen than in wild-type cells. Also the normal cell death that occurs in the retina is almost completely abolished.
Lethal period is late embryonic and first larval instar. Mutant clones induced in first larval instar can be as large as 1/5 of the body size.
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wtsx1 has neuroanatomy defective phenotype, non-enhanceable by sav3
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Reference
wtsx1 has tumorigenic phenotype, suppressible by Hsap\LATS1hs.PT
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Reference
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Statement
Reference
wtsx1/wts[+] is an enhancer of hyperplasia | recessive phenotype of exAP49
wtsx1/wts[+] is an enhancer of visible | dominant phenotype of Pc1
wtsx1/wts[+] is an enhancer of visible | dominant phenotype of Pc3
hideNOT Enhancer of
Statement
Reference
wtsx1/wts[+] is a non-enhancer of neuroanatomy defective phenotype of hpoMGH4
wtsx1 is a non-enhancer of tumorigenic | somatic clone phenotype of matse235
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Reference
wtsx1 is a non-suppressor of tumorigenic | somatic clone phenotype of matse235
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Statement
Reference
Mnn1e200, Scer\GAL4ey.PU, wtsx1/wts[+] has tumorigenic | conditional phenotype
Mnn1e200, Scer\GAL4ey.PU, wtsx1/wts[+] has visible | chemical conditional phenotype
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Reference
wtsx1 has dorsal multidendritic neuron ddaC | somatic clone & dendritic tree phenotype, non-enhanceable by sav3
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Statement
Reference
wtsx1 has dendrite phenotype, suppressible by NmnatΔ4790-2
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Statement
Reference
wtsx1 has wing disc | somatic clone phenotype, non-suppressible by crb11A22
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Reference
wtsx1/wts[+] is an enhancer of mesothoracic leg phenotype of Pc1
wtsx1/wts[+] is an enhancer of mesothoracic leg phenotype of Pc3
wtsx1/wts[+] is an enhancer of metathoracic leg phenotype of Pc1
wtsx1/wts[+] is an enhancer of metathoracic leg phenotype of Pc3
wtsx1/wts[+] is an enhancer of sex comb | ectopic phenotype of Pc1
wtsx1/wts[+] is an enhancer of sex comb | ectopic phenotype of Pc3
wtsx1/wts[+] is an enhancer of wing disc phenotype of exAP49
hideNOT Enhancer of
Statement
Reference
wtsx1/wts[+] is a non-enhancer of multidendritic dendrite phenotype of hpoMGH4
hideSuppressor of
Statement
Reference
wtsx1/wts[+] is a suppressor | partially of wing phenotype of Scer\GAL4C5/Scer\GAL4C5, hpoScer\UAS.cUa
wtsx1/wts[+] is a suppressor of wing phenotype of Scer\GAL4nub-AC-62, ftΔECD.Scer\UAS
hideOther
Statement
Reference
Mnn1e200, Scer\GAL4ey.PU, wtsx1/wts[+] has eye | chemical conditional phenotype
Pc3, wtsx1/wts[+] has dendrite & dorsal multidendritic neuron ddaC | somatic clone phenotype
sav3, wtsx1/wts[+] has dorsal multidendritic neuron ddaC | somatic clone & dendritic tree phenotype
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Whereas wts[x1] ddaC MARCM clones show a simplifed dendritic arbor with significantly reduced numbers of terminal branches, wts[x1] clones overexpressing Nmnat[Scer\UAS.cZa] under the control of Scer\GAL4[elav-C155] elaborate dendrites with terminal branch numbers that do not differ statistically from wild-type controls. A similar rescue is seen in class IV neurons. A transheterozygous combination of Nmnat[Δ4790-2] and wts[x1] does not show any synthetic phenotypes in affecting axon or dendrite development of class IV neurons.
When Wbp2[KK108304] or Wbp2[GD7170] is expressed in wts[x1]-deficient tissues using eyFlp/MARCM, a significant increase in survival is observed with the majority of flies now reaching late pupal stages and forming pharate adults, with a small number emerging as fully developed adults. When Wbp2[KK108304] or Wbp2[GD7170] is expressed in wts[x1]-deficient tissues using eyFlp/MARCM, eye disc size is reduced, the amount of wts[x1] tissue relative to wild type tissue is decreased, and the differentiation of the developing eye is almost completely restored.
Expression of ex[Scer\UAS.P\T.T:Avic\GFP-EGFP] under the control of Scer\GAL4[tub.PU] largely suppresses the overgrowth phenotype seen in wts[x1] larval eye disc clones. The eye discs are no longer drastically deformed and retain a more normal shape. The pupal stage lethality is also partially rescued. Expression of ex[CT.Scer\UAS.P\T.T:Avic\GFP-EGFP] under the control of Scer\GAL4[tub.PU] partially suppresses the pupal stage lethality seen following the induction of wts[x1] larval eye disc clones. Expression of ex[linker.Scer\UAS.P\T.T:Avic\GFP-EGFP] under the control of Scer\GAL4[tub.PU] is unable to suppress the overgrowth phenotype seen in wts[x1] larval eye disc clones. The pupal stage lethality is also not rescued.
The growth advantage of wts[x1] clones in the wing disc over their wild-type twin spots is not affected if the clones are also homozygous for crb[2].
Expression of Fancd2[dsRNA.Scer\UAS] in the eyes under the control of Scer\GAL4[ey.PU] enhances the rate of eye tumor formation in wts[x1]/+ mutant flies treated with nitrogen mustard. A Mnn1[e200] mutant background enhances the rate of eye tumor formation in response to nitrogen mustard compared to wts[x1]/+ mutant controls.
The eye overgrowth phenotype caused by wts[x1] clones is almost completely suppressed by co-expression of sd[dsRNA.N.Scer\UAS] and sd[dsRNA.C.Scer\UAS] under the control of Scer\GAL4[tub].
Pc[3]/wts[x1] double heterozygous larvae show dendritic defects in ddaC neurons; there is a significant reduction in the number of dendritic branchpoints. The ectopic sex comb phenotype seen on the second and third legs of Pc[3]/+ males is enhanced by wts[x1]. The ectopic sex comb phenotype seen on the second and third legs of Pc[1]/+ males is enhanced by wts[x1]/+.
ft8/ft422 mutants, heterozygous for wtsx1 exhibit a significant increase in size, both from wild-type and the ft8/ft422 double mutant, and display an even more 'rippled' morphology.
A wts[x1] mutant background allows recovery of larval wing disc clones expressing ex[Scer\UAS.cBa] under the control of Scer\GAL4[Scer\FRT.Act5C].
The p53GMR.Ex-mediated induction of apoptosis in the posterior portion of late larval eye discs is reduced in wtsx1 clones.
sav[3]/wts[x1] transheterozygotes exhibit simplified dendrites similar to moderately affected sav[3] MARCM clones. These double mutants show a severe dendrite effect comparable to wts[x1] MARCM clones. Transheterozygotes for wts[x1]/hpo[MGH4] display simplified dendrites similar to wts[x1] mutants. Transheterozygotes for wts[x1]/trc[1] do not show any significant dendritic phenotypes.
Wing disc overgrowth seen in exAP49 homozygous late third instar larvae is enhanced by wtsx1/+.
The loss of inter-ommatidial cells in the developing retinas of ex[Scer\UAS.cBa]; Scer\GAL4[GMR.PF] animals at the mid-pupal stage is completely suppressed in wts[x1]/wts[x1] somatic clones. The resulting clones have an excess of inter-ommatidial cells as do wts[x1]/wts[x1] somatic clones do. Heterozygosity for wts[x1] partially suppresses the reduction in size and patterning defects seen in the eyes of ex[Scer\UAS.cBa]; Scer\GAL4[GMR.PF] animals. The adult eye phenotype and the loss of interommmatidial cells seen in hpo[Scer\UAS.cUa]; Scer\GAL4[GMR.PF] mid-pupal retinas is suppressed by wts[x1]/wts[x1].
Overexpression of Akt1[Scer\UAS.T:Ivir\HA1] (under the control of Scer\GAL4[Act5C.PI]) using the FLP/FRT system in brain somatic clones mutant for scrib[1] and wts[x1] does not cause metastatic behaviour despite accelerated tumour growth.
Expression of Fancd2[dsRNA.Scer\UAS] in the eyes under the control of Scer\GAL4[ey.PU] in a wts[x1]/+ mutant background does not enhance the rate of eye tumor formation compared to controls in normal conditions. However the number of eye tumors is significantly increased when flies are treated with either nitrogen mustard or cisplatinum. This increase is restricted to eye tumors; the rate of tumours in other anatomical locations is similar to controls.
The ft[ΔECD.Scer\UAS] phenotype (under the control of Scer\GAL4[nub-AC-62]) is suppressed by wts[x1] heterozygosity.
mei-41unspecified; wtsx1/+ flies show a higher tumor incidence than controls, with a 2-fold increase at baseline and >10-fold increase after treatment with ionizing radiation. Homozygous Mnn1e200 mutants (Df(2L)Mnn1e200 mutants in which milt function is rescued by expression of the milt+22 transgene) that have a wtsx1/+ background show a two-fold greater number of tumorigenic foci than wtsx1/+ single mutants. After treatment with ionizing radiation, the number of tumorigenic foci is two to three times higher in these mutants than in controls and is 7-fold higher after treatment with nitrogen mustard.
scrib1 wtsx1 double mutant clones in the eye disc produce tumours which do not show metastatic behaviour. Expression of Akt1Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL4Act5C.PI in scrib1 wtsx1 double mutant clones in the eye disc increases tumour size but does not result in metastatic behaviour.
The Scer\GAL4C5-driven hpoScer\UAS.cUa cell death phenotype observed in the wing can be partially suppressed through wtsx1 heterozygosity.
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A significantly enhanced rate of loss of heterozygosity in wts[x1] heterozygotes is only seen when both Hsap\AS3MT[Scer\UAS.T:Ivir\HA1] is expressed under the control of Scer\GAL4[da.G32] and the flies are exposed to inorganic arsenicals.
Expression of Hsap\LATS1 using heat shock in flies containing wtsx1 clones suppresses tumour formation, and the wtsx1 cells develop into normal adult structures.
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Fails to complement
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Strong wts allele.
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hide Synonyms & Secondary IDs ( 12 )
Reported As
Symbol Synonym
wartslatsX1
Name Synonym
Secondary FlyBase IDs
hide References ( 50 )
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hide Recent research papers ( 10 )
Chen and Verheyen, 2012, Curr. Biol. 22(17): 1582--1586
Homeodomain-interacting protein kinase regulates yorkie activity to promote tissue growth. [FBrf0219448]
Matakatsu and Blair, 2012, Development 139(8): 1498--1508
Separating planar cell polarity and Hippo pathway activities of the protocadherins Fat and Dachsous. [FBrf0217773]
Fernández et al., 2011, Development 138(11): 2337--2346
Actin-Capping Protein and the Hippo pathway regulate F-actin and tissue growth in Drosophila. [FBrf0213674]
Ghabrial et al., 2011, PLoS Genet. 7(7): e1002087
A systematic screen for tube morphogenesis and branching genes in the Drosophila tracheal system. [FBrf0214368]
Gilbert et al., 2011, Dev. Cell 20(5): 700--712
A Screen for Conditional Growth Suppressor Genes Identifies the Drosophila Homolog of HD-PTP as a Regulator of the Oncoprotein Yorkie. [FBrf0213686]
Muñiz Ortiz et al., 2011, Toxicol. Sci. 121(2): 303--311
A transgenic Drosophila model for arsenic methylation suggests a metabolic rationale for differential dose-dependent toxicity endpoints. [FBrf0213756]
Ohsawa et al., 2011, Dev. Cell 20(3): 315--328
Elimination of Oncogenic Neighbors by JNK-Mediated Engulfment in Drosophila. [FBrf0213219]
Reddy and Irvine, 2011, Development 138(23): 5201--5212
Regulation of Drosophila glial cell proliferation by Merlin-Hippo signaling. [FBrf0216584]
Wen et al., 2011, Mol. Cell. Neurosci. 48(1): 1--8
Nmnat exerts neuroprotective effects in dendrites and axons. [FBrf0214616]
Zhang et al., 2011, Cell Death Differ. 18(8): 1346--1355
Wbp2 cooperates with Yorkie to drive tissue growth downstream of the Salvador-Warts-Hippo pathway. [FBrf0214266]
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