A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\rhoScer\UAS.cdCa

General Information
SymbolDmel\rhoScer\UAS.cdCaSpeciesD. melanogaster
NameSaccharomyces cerevisiae UAS construct a of de CelisFlyBase IDFBal0060846
Feature typealleleAssociated geneDmel\rho
Allele class
Mutagenin vitro construct - regulatory fusion
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Description
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FB2013_03
FB2013_02
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Construct: rho coding sequence cloned into pUAST.
Carried in construct
Cytology
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Overexpression of rhoScer\UAS.cdCa, under the control of Scer\GAL4salm-459.2, gives rise to an invagination phenotype. Two initial invagination sites appear in the placode, and cells from the dorsal side do not rotate, leading to the formation of a double arch at the early stage 11 placode.
When rhoScer\UAS.cdCa is driven by Scer\GAL4dpp.blk1 no effect is seen on wing disc growth.
In rho[Scer\UAS.cdCa]; Scer\GAL4[en-e16E] embryos, induction of larval oenocyte precursors begins at the normal time (during stage 9) and is followed by two waves of delamination with the number of cells (average 3 per wave from each oenocyte primordium) and timing of delamination as in wild-type. However, in these embryos, additional (heterochronic) waves of induction and delamination occur after these two waves (throughout stage 12), resulting in increased numbers of mature oenocytes in stage 16 embryos. Oenocyte clusters in these embryos show a multi-modal distribution of cell numbers with peaks corresponding to multiples of 3 (12, 15, 18 and 21 compared to the wild-type average of 6 resulting from 2 delamination cycles), suggesting there are up to 4 additional waves of delamination. The additional pulses of larval oenocyte precursor delamination occur with the same periodicity as the first two phases in wild-type.
When rhoScer\UAS.cdCa is driven by Scer\GAL4sim.PS an increase is see in the number of proliferating midbrain cells.
Expression of rhoScer\UAS.cdCa under the control of Scer\GAL4en-e16E or Scer\GAL4ato.3.6 results in the formation of ectopic oenocytes in the T1-T3 segments (they are normally only found in segments A1-A7).
rhoScer\UAS.cdCa; Scer\GAL4Bx-MS1096 flies have blistered wings with large amounts of ectopic vein material.
The number of chordotonal organs in the lateral cluster is increased from 5 to 6 in embryos expressing rhoScer\UAS.cdCa under the control of Scer\GAL4en-e16E. In stage 11 embryos, the oenocyte precursor whorl is enlarged and by stage 16 oenocyte clusters containing 17-27 cells are seen.
Expression of rhoScer\UAS.cdCa under the control of Scer\GAL4Bx-MS1096 results in small, heavily pigmented wings with excess vein material.
Expression of rhoScer\UAS.cdCa under the control of Scer\GAL4GMR.PF disrupts eye development leading to a rough eye phenotype. At the cellular level excess cone and pigment cell recruitment is seen, excess photoreceptors are also sometimes seen. When rhoScer\UAS.cdCa is expressed under the control of Scer\GAL4Bx-MS1096, leads to small, pigmented, blistered wings: all cells in the wing are concerted to vein cells. When rhoScer\UAS.cdCa is expressed under the control of Scer\GAL4CY2, embryos have a dorsalised phenotype.
Scer\GAL4c179-mediated expression of HLHmβScer\UAS.cdCa in the wing causes deletion of most veins and Scer\GAL4salm-459.2-mediated expression causes truncation of vein LIV. Expression of rhoScer\UAS.cdCa rescues vein loss and results in thicker veins.
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When rhoScer\UAS.cdCa is driven by Scer\GAL4dpp.blk1 in a ftG-rv background a significant enhancement is seen in the ftG-rv overgrowth phenotype in the Scer\GAL4dpp.blk1 expression territory. When rhoScer\UAS.cdCa is driven by Scer\GAL4ey.PH in ftG-rv mutant eyes, significantly enlarged eyes are seen.
Expression of either rhoScer\UAS.cdCa does not affect the wing vein phenotype of Scer\GAL4dpp.3KK>Mkp3GSM76 flies.
The oenocyte phenotype seen in rho[Scer\UAS.cdCa]; Scer\GAL4[en-e16E] embryos (extra waves of induction and delamination resulting in increased numbers of oenocytes in each cluster) is unaffected in a ato[1]/Df(3R)p13 background or a N[ICN.Scer\UAS]; Scer\GAL4[en-e16E] (both of which lack chordotonal organ precursor C1). argos[Scer\UAS.cHa]; Scer\GAL4[en-e16E] suppresses the increased numbers of oenocytes (and by implication, the number of waves of larval oenocyte precursor delamination) seen in rho[Scer\UAS.cdCa]; Scer\GAL4[en-e16E] embryos. A plot of the number of oenocytes per cluster peaks at 4, lower than the typical 6 oeoncytes per cluster seen in wild-type.
The lack of oenocytes seen in ato1/Df(3R)p13 embryos is rescued by expression of rhoScer\UAS.cdCa under the control of Scer\GAL4en-e16E.
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Bloomington
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Reported As
Symbol Synonym
rhoScer\UAS.cdCa
 
veScer\UAS.cdCa
 
veUAS.cdCa
 
Name Synonym
Saccharomyces cerevisiae UAS construct a of de Celis
Secondary FlyBase IDs
hide References ( 14 )
Research paper
Moses et al., 2011, Dev. Biol. 360(1): 208--215
Phosphorylation of Ind by MAP kinase enhances Ind-dependent transcriptional repression. [FBrf0216621]
Wojcinski et al., 2011, Dev. Biol. 358(1): 168--180
DSulfatase-1 fine-tunes Hedgehog patterning activity through a novel regulatory feedback loop. [FBrf0215253]
Brodu and Casanova, 2006, Genes Dev. 20(13): 1817--1828
The RhoGAP crossveinless-c links trachealess and EGFR signaling to cell shape remodeling in Drosophila tracheal invagination. [FBrf0195282]
Molnar et al., 2006, Genetics 174(3): 1635--1659
A gain-of-function screen identifying genes required for vein formation in the Drosophila melanogaster wing. [FBrf0195387]
Garoia et al., 2005, Mech. Dev. 122(2): 175--187
The tumor suppressor gene fat modulates the EGFR-mediated proliferation control in the imaginal tissues of Drosophila melanogaster. [FBrf0184134]
Ruiz-Gomez et al., 2005, Dev. Dyn. 232(3): 695--708
Conserved cross-interactions in Drosophila and Xenopus between Ras/MAPK signaling and the dual-specificity phosphatase MKP3. [FBrf0183898]
Brodu et al., 2004, Dev. Cell 7(6): 885--895
EGF receptor signaling regulates pulses of cell delamination from the Drosophila ectoderm. [FBrf0180129]
Page, 2003, Curr. Biol. 13(6): 474--482
A function for EGF receptor signaling in expanding the developing brain in Drosophila. [FBrf0158813]
Brodu et al., 2002, Development 129(12): 2957--2963
abdominal A specifies one cell type in Drosophila by regulating one principal target gene. [FBrf0148967]
Urban et al., 2002, EMBO J. 21(16): 4277--4286
A family of Rhomboid intramembrane proteases activates all Drosophila membrane-tethered EGF ligands. [FBrf0151285]
Elstob et al., 2001, Development 128(5): 723--732
spalt-dependent switching between two cell fates that are induced by the Drosophila EGF receptor. [FBrf0134578]
Lee et al., 2001, Cell 107(2): 161--171
Regulated intracellular ligand transport and proteolysis control EGF signal activation in Drosophila. [FBrf0139606]
Wasserman et al., 2000, Genes Dev. 14(13): 1651--1663
A family of rhomboid-like genes: Drosophila rhomboid-1 and roughoid/rhomboid-3 cooperate to activate EGF receptor signaling. [FBrf0128677]
de Celis et al., 1997, Development 124(10): 1919--1928
Notch signalling regulates veinlet expression and establishes boundaries between veins and interveins in the Drosophila wing. [FBrf0093808]