A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\rapScer\UAS.cSa

General Information
SymbolDmel\rapScer\UAS.cSaSpeciesD. melanogaster
NameSaccharomyces cerevisiae UAS construct a of SigristFlyBase IDFBal0064876
Feature typealleleAssociated geneDmel\rap
Allele class
Mutagenin vitro construct - regulatory fusion
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Description
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FB2013_03
FB2013_02
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Allele class
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Mutations Mapped to the Genome
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Associated Sequence Data
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Nature of the lesion
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Construct: rap cDNA is expressed under the control of Scer\UAS regulatory sequences.
Carried in construct
Cytology
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follicle cell & nucleus | somatic clone, with Scer\GAL4Act5C.PP
imaginal disc & mitotic cell cycle, with Scer\GAL4en-e16E
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Statement
Reference
Expression of rap[Scer\UAS.cSa] under the control of Scer\GAL4[repo.PU] or Scer\GAL4[c527] results in a dramatic reduction in glial cell number in the eye disc. Expression of rap[Scer\UAS.cSa] under the control of Scer\GAL4[Mz97] has no effect on glial cells in the eye disc.
Expression of rapScer\UAS.cSa under the control of Scer\GAL4prd.RG1 causes inhibition of mitosis 16 in the rapScer\UAS.cSa-expressing embryonic segments.
Expression of rapScer\UAS.cSa in the developing eye, under the control of Scer\GAL4ey.PH, causes three distinct phenotypes: 1. Inhibition of compound eye development. The severity of this ranges from a drastic reduction of the eye to a complete loss of the eye. 2. Induction of ectopic antennae. These antennae can appear fully-differentiated, or may consist of only the first antennal segment. They can occur at the eye position or surrounding regions of the head. Staining of the eye-antennal disc with antennal-specific markers suggests that this ectopic formation is due to an increase in size of the antennal primordia. 3. Induction of abnormally large cells in the eye and more medial regions of the head that form tumour-like structures.
In somatic clones of rapScer\UAS.cSa; Scer\GAL4Act5C.PP cells in the ovarian follicle cells, mitosis arrests (indicated by loss of expression of some mitotic markers) and nuclei become enlarged. FACS profiles of DNA content in follicle cell populations containing these somatic clones show a 32n population not present in wild-type. However, amplification at specific loci (seen after stage 10B in wild-type) occurs normally in these enlarge nuclei.
When rapScer\UAS.cSa is driven by Scer\GAL4twi.PG, most hemisegments of mutant embryos show only one eve expressing pericardial cell (EPC), suggesting that the last division generating two EPCs did not occur. Only four (instead of the normal six) myocardial cells form per hemisegment.
In rapScer\UAS.cSa; Scer\GAL4prd.RG1 embryos, cells in alternate segments fail to execute mitotic cycle 16, resulting in fewer cells per segment in embryos older than stage 12.
Mitosis 16 is blocked in embryos expressing rapScer\UAS.cSa under the control of Scer\GAL4prd.RG1. Inhibits mitotic divisions during imaginal disc cell proliferation when expressed in the posterior compartment of the imaginal discs using Scer\GAL4en-e16E, with the cells undergoing DNA overreplication.
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Statement
Reference
Coexpression of CycAScer\UAS.cWa with rapScer\UAS.cSa, under the control of Scer\GAL4prd.RG1, suppresses the inhibition of embryonic mitosis 16 seen when rapScer\UAS.cSa is expressed alone.
Rca1Scer\UAS.T:Ivir\HA1 suppresses the embryonic cycle 16 mitotic block due to a rapScer\UAS.cSa; Scer\GAL4prd.RG1.
Embryos expressing both CycEScer\UAS.cLa and rapScer\UAS.cSa under the control of Scer\GAL4prd.RG1 show normal development until and including mitosis 16 followed by an extra division cycle. Results in an inhibition of mitosis when expressed in CycEAR95 embryos using Scer\GAL4prd.RG1.
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Partially rescues
Fails to rescue
Comments
Expression of rap[Scer\UAS.cSa] under the control of either Scer\GAL4[gcm.PU] or Scer\GAL4[repo.PU] fails to rescue the increase in glial cell number and glial cell migration defects seen in rap[ie28] embryos. Expression of rap[Scer\UAS.cSa] under the control of Scer\GAL4[elav-C155] does not rescue the increase in glial cell number seen in rap[ie28] embryos, but the glial cell migration defect is completely rescued in 49.6% of hemisegments and is partially rescued in 25.9% of hemisegments. The axonal growth defects seen in the central and peripheral nervous systems are also rescued. Expression of rap[Scer\UAS.cSa] under the control of Scer\GAL4[elav.PLu] almost completely rescues both the glial cell migration defects (71.5% complete rescue, 19% partial rescue) and increase in glial cell number seen in rap[ie28] embryos. The axonal growth defects seen in the central and peripheral nervous systems are also rescued.
Expression of rapScer\UAS.cSa, under the control of Scer\GAL4drl-PGAL8, fully rescues the rough eye phenotype in 67% of flies and mediates a partial rescue in the other 33%.
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Reported As
Symbol Synonym
fzrScer\UAS.cSa
 
fzrUAS.cSa
 
rapScer\UAS.cSa
 
Name Synonym
Saccharomyces cerevisiae UAS construct a of Sigrist
Secondary FlyBase IDs
hide References ( 12 )
Research paper
Silies and Klämbt, 2010, Nat. Neurosci. 13(11): 1357--1364
APC/C(Fzr/Cdh1)-dependent regulation of cell adhesion controls glial migration in the Drosophila PNS. [FBrf0212144]
Narbonne-Reveau et al., 2008, Development 135(8): 1451--1461
APC/CFzr/Cdh1 promotes cell cycle progression during the Drosophila endocycle. [FBrf0204408]
Silies et al., 2007, J. Neurosci. 27(48): 13130--13139
Glial cell migration in the eye disc. [FBrf0201162]
Swan and Schupbach, 2007, Development 134(5): 891--899
The Cdc20 (Fzy)/Cdh1-related protein, Cort, cooperates with Fzy in cyclin destruction and anaphase progression in meiosis I and II in Drosophila. [FBrf0194687]
Reber et al., 2006, Development 133(16): 3201--3211
Terminal mitoses require negative regulation of Fzr/Cdh1 by Cyclin A, preventing premature degradation of mitotic cyclins and String/Cdc25. [FBrf0195204]
Pimentel and Venkatesh, 2005, Dev. Biol. 285(2): 436--446
rap gene encodes Fizzy-related protein (Fzr) and regulates cell proliferation and pattern formation in the developing Drosophila eye-antennal disc. [FBrf0190151]
Schaeffer et al., 2004, Curr. Biol. 14(7): 630--636
Notch-dependent Fizzy-related/Hec1/Cdh1 expression is required for the mitotic-to-endocycle transition in Drosophila follicle cells. [FBrf0174489]
Shcherbata et al., 2004, Development 131(13): 3169--3181
The mitotic-to-endocycle switch in Drosophila follicle cells is executed by Notch-dependent regulation of G1/S, G2/M and M/G1 cell-cycle transitions. [FBrf0179442]
Araki et al., 2003, EMBO J. 22(22): 6115--6126
Degradation of origin recognition complex large subunit by the anaphase-promoting complex in Drosophila. [FBrf0167552]
Han and Bodmer, 2003, Development 130(13): 3039--3051
Myogenic cells fates are antagonized by Notch only in asymmetric lineages of the Drosophila heart, with or without cell division. [FBrf0160590]
Grosskortenhaus and Sprenger, 2002, Dev. Cell 2(1): 29--40
Rca1 inhibits APC-Cdh1(Fzr) and is required to prevent Cyclin degradation in G2. [FBrf0141469]
Sigrist and Lehner, 1997, Cell 90(4): 671--681
Drosophila fizzy-related down-regulates mitotic cyclins and is required for cell proliferation arrest and entry into endocycles. [FBrf0098351]