Saccharomyces cerevisiae
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA154129 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR332256.fastq.gz | Fastqsanger.gz | |||
| SRR332257.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 2 of 2 |
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Project description:The RNA interference (RNAi) pathway is found in most eukaryotic lineages but curiously is absent in others, including that of Saccharomyces cerevisiae. Here, we show that reconstituting RNAi in S. cerevisiae causes loss of a beneficial dsRNA virus, known as killer virus. Incompatibility between RNAi and killer viruses extends to other fungal species, in that RNAi is absent in all species known to possess dsRNA killer viruses, whereas killer viruses are absent in closely related species that retained RNAi. Thus, the advantage imparted by acquiring and retaining killer viruses explains the persistence of RNAi-deficient species during fungal evolution. Employ high-throughput sequencing of endogenous small RNAs from Saccharomyces cerevisiae wild-type and RNAi-reconstituted strains.
2011-08-10 | E-GEOD-31290 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE31288: The impact of RNAi on the Saccharomyces cerevisiae transcriptome GSE31290: Small RNAs in S. cerevisiae reconstituted with RNAi Refer to individual Series
2011-08-09 | E-GEOD-31300 | biostudies-arrayexpress
Project description:Mapping of dsRNA in yeast using reconstituted RNAi pathway
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Project description:The RNA interference (RNAi) pathway is found in most eukaryotic lineages but curiously is absent in others, including that of Saccharomyces cerevisiae. Here, we show that reconstituting RNAi in S. cerevisiae causes loss of a beneficial dsRNA virus, known as killer virus. Incompatibility between RNAi and killer viruses extends to other fungal species, in that RNAi is absent in all species known to possess dsRNA killer viruses, whereas killer viruses are absent in closely related species that retained RNAi. Thus, the advantage imparted by acquiring and retaining killer viruses explains the persistence of RNAi-deficient species during fungal evolution.
2011-08-10 | GSE31288 | GEO
Project description:RNAi, a gene-silencing pathway triggered by double-stranded RNA, is conserved in diverse eukaryotic species but has been lost in the model budding yeast, Saccharomyces cerevisiae. We report that RNAi is present in other budding-yeast species, including Saccharomyces castellii and Candida albicans. These species use noncanonical Dicer proteins to generate siRNAs, which mostly correspond to transposable elements and Y´ subtelomeric repeats. In S. castellii, RNAi mutants are viable but have excess Y´ mRNA levels. In S. cerevisiae, introducing Dicer and Argonaute of S. castellii restores RNAi, and the reconstituted pathway silences endogenous retrotransposons. These results identify a novel class of Dicer proteins, bring the tool of RNAi to the study of budding yeasts, and bring the tools of budding yeast to the study of RNAi.
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Project description:AlkB-facilitated RNA Methylation Sequencing (ARM-Seq) of Saccharomyces cerevisiae small RNAs
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Project description:This project aims to identify novel RNA binding proteins in the baker's yeast, Saccharomyces cerevisiae. Since interactions between RNAs and proteins may be transient, yeast cells were crosslinked with UV light at 254 nm which promotes the covalent link between proteins and RNAs. After this, polyadenylated mRNAs were purified via oligo(dT) coupled to magentic beads under stringet conditions. Finally, samples were subjected to mass spectrometry analysis. To rule out the possibility of RNA-independent binding we also analysed other samples: i) samples digested with RNase one; ii) samples where we performed competition assays with polyadenylic acid.
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Project description:The RNA interference (RNAi) pathway is found in most eukaryotic lineages but curiously is absent in others, including that of Saccharomyces cerevisiae. Here, we show that reconstituting RNAi in S. cerevisiae causes loss of a beneficial dsRNA virus, known as killer virus. Incompatibility between RNAi and killer viruses extends to other fungal species, in that RNAi is absent in all species known to possess dsRNA killer viruses, whereas killer viruses are absent in closely related species that retained RNAi. Thus, the advantage imparted by acquiring and retaining killer viruses explains the persistence of RNAi-deficient species during fungal evolution. Examine mRNA abundance of S. cerevisiae wild-type (DPB249), +AGO1 (DPB252), +DCR1 (DPB255) and +AGO1, DCR1 (DPB258).
2011-08-10 | E-GEOD-31288 | biostudies-arrayexpress
Project description:The impact of RNAi on the Saccharomyces cerevisiae transcriptome
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Project description:Small RNA produced by Dicer (Dcr1) are used to map dsRNA in wild-type strain and a xrn1-delta mutant of S. cerevisiae, inactivated for the cytoplasmic 5'-3' RNA decay pathway. Small RNA sequencing in wild-type and xrn1-delta strains of S. cerevisiae, with or without reconstituted RNAi pathway.
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