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- Title
Nuclear Argonaute Piwi Gene Mutation Affects rRNA by Inducing rRNA Fragment Accumulation, Antisense Expression, and Defective Processing in Drosophila Ovaries.
- Authors
Stolyarenko, Anastasia D.
- Abstract
Drosophila key nuclear piRNA silencing pathway protein Piwi of the Argonaute family has been classically studied as a factor controlling transposable elements and fertility. Piwi has been shown to concentrate in the nucleolus for reasons largely unknown. Ribosomal RNA is the main component of the nucleolus. In this work the effect of a piwi mutation on rRNA is described. This work led to three important conclusions: A mutation in piwi induces antisense 5S rRNA expression, a processing defect of 2S rRNA orthologous to the 3′-end of eukaryotic 5.8S rRNA, and accumulation of fragments of all five rRNAs in Drosophilamelanogaster ovaries. Hypotheses to explain these phenomena are proposed, possibly involving the interaction of the components of the piRNA pathway with the RNA surveillance machinery.
- Subjects
PIWI genes; RIBOSOMAL RNA; OVARIES; DROSOPHILA; ARGONAUTE proteins
- Publication
International Journal of Molecular Sciences, 2020, Vol 21, Issue 3, p1119
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms21031119