ArticleNucleic acids research2023
Inter-generational nuclear crosstalk links the control of gene expression to programmed genome rearrangement during the Paramecium sexual cycle.
Article in Nucleic acids research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 6 citations in OpenAlex.
- In Vitro Inhibition of STAT5 Signaling Limits CD8+ T-cell Exhaustion and Improves Outcomes in Adoptive T-cell Therapy.Cancer immunology research · 2026Article
- The tiny germline chromosomes of Paramecium aurelia have an exceptionally high recombination rate and are capped by a new class of Helitrons.BMC biology · 2026Article
- A developmental condensin I complex assists the Paramecium PiggyMac domesticated transposase during programmed DNA elimination.Nucleic acids research · 2026Article
- A H3K27me3 reader complex couples H3K27me3 accumulation to nascent transcription of transposable elements in Paramecium.Genome biology · 2026Article
- Functions and mechanisms of eukaryotic RNA-guided programmed DNA elimination.Biochemical Society transactions · 2025Review
- ISWI1 complex proteins facilitate developmental genome editing inGenome research · 2025Article
- The PIWI-interacting protein Gtsf1 controls the selective degradation of small RNAs in Paramecium.Nucleic acids research · 2025Article
- Two paralogous PHD finger proteins participate in natural genome editing in Paramecium tetraurelia.Journal of cell science · 2024Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Multinucleate cells are found in many eukaryotes, but how multiple nuclei coordinate their functions is still poorly understood. In the cytoplasm of the ciliate Paramecium tetraurelia, two micronuclei (MIC) serving sexual reproduction coexist with a somatic macronucleus (MAC) dedicated to gene expression. During sexual processes, the MAC is progressively destroyed while still ensuring transcription, and new MACs develop from copies of the zygotic MIC. Several gene clusters are successively induced and switched off before vegetative growth resumes. Concomitantly, programmed genome rearrangement (PGR) removes transposons and their relics from the new MACs. Development of the new MACs is controlled by the old MAC, since the latter expresses genes involved in PGR, including the PGM gene encoding the essential PiggyMac endonuclease that cleaves the ends of eliminated sequences. Using RNA deep sequencing and transcriptome analysis, we show that impairing PGR upregulates key known PGR genes, together with ∼600 other genes possibly also involved in PGR. Among these genes, 42% are no longer induced when no new MACs are formed, including 180 genes that are co-expressed with PGM under all tested conditions. We propose that bi-directional crosstalk between the two coexisting generations of MACs links gene expression to the progression of MAC development.
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