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Nuclear Argonaute Piwi Gene Mutation Affects rRNA by Inducing rRNA Fragment Accumulation, Antisense Expression, and Defective Processing in Drosophila Ovaries

Institute of Molecular Genetics, Russian Academy of Sciences, 2 Kurchatov Sq., 123182 Moscow, Russia
Int. J. Mol. Sci. 2020, 21(3), 1119; https://doi.org/10.3390/ijms21031119
Received: 27 November 2019 / Revised: 27 January 2020 / Accepted: 4 February 2020 / Published: 7 February 2020
(This article belongs to the Section Molecular Biology)
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 Drosophila melanogaster ovaries. Hypotheses to explain these phenomena are proposed, possibly involving the interaction of the components of the piRNA pathway with the RNA surveillance machinery. View Full-Text
Keywords: Piwi; piRNA; rRNA fragments; rRNA processing; antisense rRNA; 2S rRNA; 5.8S rRNA; 5S rRNA; ovaries; Drosophila melanogaster Piwi; piRNA; rRNA fragments; rRNA processing; antisense rRNA; 2S rRNA; 5.8S rRNA; 5S rRNA; ovaries; Drosophila melanogaster
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MDPI and ACS Style

Stolyarenko, A.D. Nuclear Argonaute Piwi Gene Mutation Affects rRNA by Inducing rRNA Fragment Accumulation, Antisense Expression, and Defective Processing in Drosophila Ovaries. Int. J. Mol. Sci. 2020, 21, 1119. https://doi.org/10.3390/ijms21031119

AMA Style

Stolyarenko AD. Nuclear Argonaute Piwi Gene Mutation Affects rRNA by Inducing rRNA Fragment Accumulation, Antisense Expression, and Defective Processing in Drosophila Ovaries. International Journal of Molecular Sciences. 2020; 21(3):1119. https://doi.org/10.3390/ijms21031119

Chicago/Turabian Style

Stolyarenko, Anastasia D. 2020. "Nuclear Argonaute Piwi Gene Mutation Affects rRNA by Inducing rRNA Fragment Accumulation, Antisense Expression, and Defective Processing in Drosophila Ovaries" International Journal of Molecular Sciences 21, no. 3: 1119. https://doi.org/10.3390/ijms21031119

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