A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Dmel\P{lArB}14-3-3ζP1188 Insertion

General Information
Symbol Dmel\P{lArB}14-3-3ζP1188 Species D. melanogaster
Name FlyBase ID FBti0009360
Feature type transposable_element_insertion_site
Description
Inserted element P{lArB} Expression data lacZ reporter
Affected gene(s) 14-3-3ζ, Ecol\lacZ Viability / fertility
Causes allele(s) 14-3-3ζP1188, Ecol\lacZ14-3-3ζ-P1188 Stock availability 1 publicly available
LINE ID
Genomic Location
Chromosomal location 2R ( 46E6-46E8 ) Sequence location
Member of Large Scale Dataset(s)
Dataset
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Description
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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)
46E6-46E8 ( near gene of known cytology )
Cytological location
(reported)
Comments concerning
location
hide Sequence Data
Flanking sequence
hide Inserted Element
Construct P{lArB}
Location-dependent
role
lacZ enhancer trap
Size 18.327Kb
Associated alleles
Molecular map
hide Affected Gene(s)
Insertion may
affect gene
hide Alleles and Phenotypes
Causes alleles
Lethality
References
lethal | embryonic stage | recessive
Sterility
References
hide Phenotype Manifest In
border follicle cell | somatic clone
denticle belt | germline clone
embryonic/first instar larval cuticle | germline clone
follicle cell | somatic clone
syncytial blastoderm embryo | germline clone
hide Detailed Description
Statement
Reference
Expression of 14-3-3ζ[I.Scer\UAS] under the control of Scer\GAL4[elav.PLu] partially rescues the lethality found in 14-3-3ζ[P1188] homozygotes and 14-3-3ζ[P1188]/14-3-3ζ[P2335] to approximately 20% of expected. Expression of 14-3-3ζ[II.Scer\UAS] under the control of Scer\GAL4[elav.PLu] partially rescues the lethality found in 14-3-3ζ[P1188] homozygotes and 14-3-3ζ[P1188]/14-3-3ζ[P2335] heterozygotes to approximately 15-20% of expected. Expression of 14-3-3ζ[III.Scer\UAS.T:Zzzz\FLAG] under the control of Scer\GAL4[elav.PLu] partially rescues the lethality found in 14-3-3ζ[P1188] homozygotes and 14-3-3ζ[P1188]/14-3-3ζ[P2335] heterozygotes to approximately 60-70% of expected.
12-18% of 14-3-3ζ[P1188]/14-3-3ζ[P2335] heteroallelic animals are escapers. They do not exhibit external defects or grossly aberrant behaviors, despite no 14-3-3ζ expression.
Border follicle cell migration is disrupted in mosaic egg chambers containing homozygous follicle cell clones.
Follicular epithelium morphogenesis is normal in 14-3-3ζP1188/14-3-3ζP1375 ; 14-3-3εj2B10/+ egg chambers up to stage 4, but the follicle cells subsequently lose their regular cuboidal shape.
Large homozygous follicle cell clones show dramatic defects in tissue organisation, forming multilayers of morphologically abnormal cells that often fail to encapsulate germline cysts properly. Smaller homozygous follicle cell clones that arise after epithelium formation have milder and less penetrant defects in morphology and polarity.
Many 14-3-3ζP1188 germ-line clones in 14-3-3εj2B10/+ females have defects in oocyte specification and polarization. Many 14-3-3ζP1188 germ-line clones in 14-3-3εS-1259/+ females have defects in oocyte specification. The penetrance of the oocyte to nurse cell transformation phenotype seen in 14-3-3εj2B10 germ-line clones (80% n=106) is dominantly enhanced to 100% by 14-3-3ζP1188.
14-3-3ζP1188 germ-line clones do not exhibit defects in oocyte specification or polarization.
Flies rescued from lethality by 14-3-3ζLI.15.hs or 14-3-3ζLI.15.hs and 14-3-3ζLII.2.hs show a 25-30% decrement in olfactory learning, comparable to that of (rescued) 14-3-3ζ2.3. The restoration of learning by the transgenes decays back to mutant levels 60-70 hr later.
Homozygous embryos show no apparent defects in the timing of mitotic cycle 14 and show delayed mitosis after irradiation (as occurs in wild type). 69 +/- 9% of mutant embryos derived from homozygous female germline clones fail to cellularise. 54/59 of the embryos have defects in cell division, including DNA bridges between telophase sister nuclei, asynchrony in division within a single embryo, free microtubule-organizing centres that are not associated with nuclei, loss of nuclei from the cortical monolayer of nuclei and larger than normal yolk DNA masses. Chromosome bridges interconnecting DNA masses are seen as early as telophase of the fourth embryonic mitosis. Mitotic spindles do appear to be formed in these embryos (as judged by the segregation of chromosome masses that are still linked by DNA bridges to opposite spindle poles), and attempts at the formation of mid-bodies are seen between segregating nuclei, despite the presence of chromosome bridges. Approximately 30% of embryos cellularise. These embryos have severe gastrulation defects.
Embryos do not exhibit a dorsal closure defect. The amplitude and frequency of endogenous excitatory junctional currents (EJCs) is reduced relative to wild type and the NMJ exhibits a transmission defect, the calcium dependence curve is shifted to the right indicating a higher level of external calcium is required to achieve the given level of secretion.
Embryos derived from homozygous female germline clones show a variable phenotype that is not significantly different whether or not the embryos contain a wild-type copy of 14-3-3ζ from the father. Approximately 50% of the embryos do not develop cuticles, and the remainder develop cuticles with various segmentation defects including missing and/or fused denticle bands. The Filzkorper appear normal. Approximately 50% of the embryos appear to stop development during the syncytial blastoderm stage, and contain many fewer nuclei compared to wild-type. Some of these nuclei appear fused. 18% of embryos carrying 14-3-3ζhbNRE.RpII15 and derived from homozygous 14-3-3ζP1188 female germline clones have a wild-type anterior region but are missing all or part of the posterior region. 56% of these \'anteriorly rescued\' embryos have shortened Filzkorper.
Heterozygotes exhibit normal 3 minute memory performance. Odour avoidance (octanol and benzaldehyde) is normal.
hide Expression Data
Reporter Expression
distribution deduced from reporter
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Information
Statement
Reference
Intense staining is observed in the perikarya of mushroom bodies. Staining is also observed in the cortex of the antennal lobe, the thoracic ganglia, and in apparent glial cells of the medulla.
Marker for
Reflects
expression of
Reporter construct
used in assay
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FlyView (LinkOut)
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Line ID
Origin as a multiple insertion line
hide Progenitor(s) within the Genome
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Aberration
Balancer
hide Stocks ( 1 )
Bloomington
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hide Synonyms & Secondary IDs
Reported As
Symbol Synonym
P{lArB}14-3-3P1188
P{lArB}14-3-3ζP1188
P{lArB}leoP1188
Secondary FlyBase IDs
  • FBti0004088
  • FBti0004222
hide References ( 13 )
Research paper
Messaritou et al., 2010, J. Biol. Chem. 285(3): 1692--1700
Dimerization is essential for 14-3-3zeta stability and function in vivo. [FBrf0209680]
Messaritou et al., 2009, FEBS Lett. 583(17): 2934--2938
A third functional isoform enriched in mushroom body neurons is encoded by the Drosophila 14-3-3zeta gene. [FBrf0208682]
McDonald et al., 2008, Curr. Biol. 18(21): 1659--1667
PAR-1 Kinase Regulates Epithelial Detachment and Directional Protrusion of Migrating Border Cells. [FBrf0206227]
Benton and St. Johnston, 2003, Cell 115(6): 691--704
Drosophila PAR-1 and 14-3-3 inhibit Bazooka/PAR-3 to establish complementary cortical domains in polarized cells. [FBrf0173208]
Benton et al., 2002, Dev. Cell 3(5): 659--671
Drosophila 14-3-3/PAR-5 is an essential mediator of PAR-1 function in axis formation. [FBrf0151902]
Philip et al., 2001, J. Neurosci. 21(21): 8417--8425
Conditional rescue of olfactory learning and memory defects in mutants of the 14-3-3 gene leonardo. [FBrf0139731]
Su et al., 2001, J. Cell Sci. 114(19): 3445--3454
Cell cycle roles for two 14-3-3 proteins during Drosophila development. [FBrf0139721]
Broadie et al., 1997, Neuron 19(2): 391--402
Leonardo, a Drosophila 14-3-3 protein involved in learning, regulates presynaptic function. [FBrf0098203]
Li et al., 1997, Development 124(20): 4163--4171
The Drosophila 14-3-3 protein Leonardo enhances Torso signaling through D-Raf in a Ras 1-dependent manner. [FBrf0099365]
Han et al., 1996, J. Neurobiol. 31(1): 88--102
The Drosophila brain revisited by enhancer detection. [FBrf0089671]
Skoulakis and Davis, 1996, Neuron 17(5): 931--944
Olfactory learning deficits in mutants for leonardo, a Drosophila gene encoding a 14-3-3 protein. [FBrf0090801]
Wilson et al., 1989, Genes Dev. 3(9): 1301--1313
P-element-mediated enhancer detection: an efficient method for isolating and characterizing developmentally regulated genes in Drosophila. [FBrf0049802]
FlyBase analysis
FlyBase, 1992-, FlyBase curation.
FlyBase curation. [FBrf0105495]