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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and rea1 mutant total and polysome-bound Transcriptomes

ABSTRACT: Analysis of gene expression level. The hypothesis tested in the present study was that rea1 mutant influence the translation level of translation and nucleosome assembly associated genes. Results provide important information of the gene translation level regulation of ribosome proteins, elongation factors, histones and genes associated with other biological processes.

ORGANISM(S): Zea mays

PROVIDER: GSE67083 | GEO | 2015/04/25

SECONDARY ACCESSION(S): PRJNA278871

REPOSITORIES: GEO

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and rea1 mutant total and polysome-bound Transcriptomes

Project description:Analysis of gene expression level. The hypothesis tested in the present study was that rea1 mutant influence the translation level of translation and nucleosome assembly associated genes. Results provide important information of the gene translation level regulation of ribosome proteins, elongation factors, histones and genes associated with other biological processes. Endosperm total and polysome-bound mRNA profiles of 15DAP wild type (WT) and rea1 mutant were generated by deep sequencing, in triplicate, using Illumina Hiseq 2500 (Zea mays).

2015-04-25 | E-GEOD-67083 | biostudies-arrayexpress

Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and rea1 mutant Transcriptomes

Project description:Analysis of gene expression level. The hypothesis tested in the present study was that rea1 mutant influence the expression of translation and nucleosome assembly associated genes. Results provide important information of the gene expression level regulation of ribosome proteins, elongation factors, histones and genes associated with other biological processes. Endosperm mRNA profiles of 15DAP wild type (WT) and rea1 mutant were generated by deep sequencing, in triplicate, using Illumina Hiseq 2500 (Zea mays).

2015-04-25 | E-GEOD-67080 | biostudies-arrayexpress

Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and rea1 mutant Transcriptomes

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and dek35 mutant Transcriptomes

Project description:Analysis of gene expression level. The hypothesis tested in the present study was that dek35 mutant influence the expression of mitochondrial oxidative phosphorylation associated genes. Results provide important information of the gene expression level regulation of mitochondrial complexes assembly proteins, translational elongation factors and genes associated with other biological processes. Endosperm mRNA profiles of 18DAP wild type (WT) and dek35 mutant were generated by deep sequencing, in triplicate, using Illumina Hiseq 2500 (Zea mays).

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Polysome-bound mRNA during oocyte maturation

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and dek35 mutant Transcriptomes

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Radiation-induced alternative transcripts as detected in total and polysome-bound mRNA.

Project description:Alternative splicing is a critical event in the posttranscriptional regulation of gene expression. To investigate whether this process influences radiation-induced gene expression we defined the effects of ionizing radiation on the generation of alternative transcripts in total cellular mRNA (the transcriptome) and polysome-bound mRNA (the translatome) of the human glioblastoma stem-like cell line NSC11. For these studies, RNA-Seq profiles from control and irradiated cells were compared using the program SpliceSeq to identify transcripts and splice variations induced by radiation. As compared to the transcriptome (total RNA) of untreated cells, the radiation-induced transcriptome contained 92 splice events suggesting that radiation induced alternative splicing. As compared to the translatome (polysome-bound RNA) of untreated cells, the radiation-induced translatome contained 280 splice events of which only 24 were overlapping with the radiation-induced transcriptome. These results suggest that radiation not only modifies alternative splicing of precursor mRNA, but also results in the selective association of existing mRNA isoforms with polysomes. Comparison of radiation-induced alternative transcripts to radiation-induced gene expression in total RNA revealed little overlap (about 3%). In contrast, in the radiation-induced translatome, about 38% of the induced alternative transcripts corresponded to genes whose expression level was affected in the translatome. This study suggests that whereas radiation induces alternate splicing, the alternative transcripts present at the time of irradiation may play a role in the radiation-induced translational control of gene expression and thus cellular radioresponse.

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and dek44 mutant Transcriptomes

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and dek10 mutant Transcriptomes

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Polysome-bound mRNA during oocyte maturation

Project description:Oocyte maturation, fertilization, and early embryonic development occur in the absence of gene transcription. Therefore, it is critical to understand at a global level the post-transcriptional events that are driving these transitions. Here, we have used a systems approach by combining polysome mRNA profiling and bioinformatics to identify RNA binding motifs in mRNAs that either enter or exit the polysome pool during mouse oocyte maturation. Association of mRNA with the polysomes correlates with active translation. Forty-eight hours (h) after PMSG injection, mice were stimulated with hCG for 0, 4, or 14 h, and GV-, MI- and MII-stage oocytes were collected. Polysome-bound mRNAs were purified, reverse-transcribed and linearly amplified with the WT-Ovation FFPE RNA Amplification System V2 (NuGEN). 5µg cDNA were fragmented and hybridized with Affymetrix Mouse Genome 430.2 array chips. Experiments were done using 3 independent sample sets.

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