Allele Dmel\cindrdsRNA.Scer\UAS
| General Information | |||
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| Symbol | Dmel\cindrdsRNA.Scer\UAS | Species | D. melanogaster |
| Name | FlyBase ID | FBal0243992 | |
| Feature type | allele | Associated gene | Dmel\cindr |
| Allele class | |||
| Mutagen | in vitro construct - RNAi, in vitro construct - regulatory fusion | ||
Recent Updates
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| Description |
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| FB2013_03 | |||
| FB2013_02 | |||
| All updates | Click here to see a list of all updates to this record from FB2010_08 and on. | ||
Nature of the Allele
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| Allele class | |||
| Mutagen | |||
| Mutations Mapped to the Genome | |||
Type Location Additional Notes References | |||
| Associated Sequence Data | |||
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EMBL / GenBank | DNA sequence Protein sequence Name | ||
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| Nature of the lesion | Statement Reference | ||
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| Cytology | |||
Phenotypic Data
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Phenotypic Class
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Phenotype Manifest In
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Detailed Description
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Statement Reference Co-expression of cindr[dsRNA.PC.PD.Scer\UAS] and cindr[dsRNA.Scer\UAS] under the control of Scer\GAL4[GR1] results in a significant increase in the number of binucleate follicle cells compared to control egg chambers. The increase in binucleate follicle cells is accompanied by a significant decrease in the average number of follicle cell intercellular bridges per nucleus. Expression of cindr[dsRNA.Scer\UAS] under the control of Scer\GAL4[306] results in a weak border cell migration defect in the egg chamber. Expression of cindr[dsRNA.Scer\UAS] driven by Scer\GAL4[GMR.PF] results in patterning defect in pupal eyes. Ubiquitous expression of cindr[dsRNA.Scer\UAS] under the control of Scer\GAL4[tub] leads to embryonic and early larval lethality.
Expression of cindr[dsRNA.Scer\UAS] and cindr[dsRNA.PC.PD.Scer\UAS] in the eye for at least 24 hours (under the control of Scer\GAL4[GMR.PF]) does not generate any developmental defects.
Initial recruitment of 1[o] cells in Scer\GAL4[GMR.PF]>cindr[dsRNA.PC.PD.Scer\UAS], cindr[dsRNA.Scer\UAS] eyes commences normally and many, though not all, fledgling 1[o] cells successfully encircle a central cone cell quartet. However, these emerging 1[o] cells commonly fail to maintain their niches: 1[o] cells often lose contact with their partners, a loss typically coupled with dissolution of their shared junction. As a result, one proto-1[o] cell is often replaced by another cell to generate a new 1[o] cell. Remarkably, this instability of the 1[o]-1[o] interface continues throughout the stages of interommatidial precursor cell patterning hours after 1[o] cells have normally completed their movements.
Expression of cindr[dsRNA.Scer\UAS] in the pupal eye (under the control of Scer\GAL4[GMR.PF]) results in misplacement of cells, misorientation of pattern elements within the ommatidial field, and a variable number of pigment cells. An additional one to two pigment cells surround approximately 16% of Scer\GAL4[GMR.PF]>cindr[dsRNA.Scer\UAS] ommatidia. Patterning of the interommatidial precursor cells is delayed or lost in these flies.
Small clonal patches of 1[o] cells expressing cindr[dsRNA.PC.PD.Scer\UAS] and cindr[dsRNA.Scer\UAS] under the control of Scer\GAL4[Scer\FRT.Act5C] are consistently smaller than their wild-type neighbours. Paired cindr[dsRNA.PC.PD.Scer\UAS] 1[o] cells frequently retract, permitting a neighbouring wild-type interommatidial precursor cell direct contact with the central cone cells and often leads to an ectopic third 1[o] cell.
Strongly reducing cindr activity (in Scer\GAL4[GMR.PF]>cindr[dsRNA.PC.PD.Scer\UAS], cindr[dsRNA.Scer\UAS] mutants) has a marked effect on F-actin during interommatidial precursor cell patterning: at 28 hours APF, the density of F-actin fibrils and spikes filling the cytoplasm of interommatidial precursor cells is markedly increased. At later stages of patterning, a more dense and disorganized cytoskeletal network is observed in interommatidial precursor cells and the radiating arrangement of actin fibrils in 1[o] cells absent at 41 hours APF. Within cone cells, F-actin levels are mildly elevated at 28 hours APF, and distinct F-actin spikes fail to radiate from cell membranes. | |||
External Data
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Interactions
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Phenotypic Class
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Phenotype Manifest In
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Enhanced by | |||
Statement Reference Scer\GAL4GMR.PF/Scer\GAL4GMR.PF, cindrdsRNA.Scer\UAS has eye | pupal stage phenotype, enhanceable by ena[+]/enaGC1/Scer\GAL4GMR.PF | |||
Suppressed by | |||
Statement Reference | |||
Suppressor of | |||
Statement Reference | |||
Additional Comments
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Genetic Interactions
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Statement Reference Expression of cindr[dsRNA.Scer\UAS] under the control of Scer\GAL4[306] in a mim[null] background restores the ability of border cells in the egg chamber to migrate. The pupal eye patterning defect phenotype caused by the expression of cindr[dsRNA.Scer\UAS] driven by Scer\GAL4[GMR.PF] is enhanced by ena[GC1]/+. | |||
Xenogenetic Interactions
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Statement Reference | |||
Complementation & Rescue Data
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| Comments | |||
Stocks
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Notes on Origin
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| Discoverer | |||
External Crossreferences & Linkouts
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Synonyms & Secondary IDs
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| Reported As | |||
| Symbol Synonym | cindrdsRNA.Scer\UAS | ||
| Name Synonym | |||
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References
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| Research paper |
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Recent Updates
External Crossreferences & Linkouts