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RNA-seq Analysis of 14-day-old WT, bcl7a(brip3), bcl7b(brip4), bcl7a bcl7b(brip3 brip4), bcl7a bcl7b brm-3(brip3 brip4 brm-3) and bcl7a bcl7b brm-1(brip3 brip4 brm-1) seedlings under short day condition

ABSTRACT: Purpose：Examination of global gene expression of 14-day-old WT, bcl7a(brip3), bcl7b(brip4), bcl7a bcl7b(brip3 brip4), bcl7a bcl7b brm-3(brip3 brip4 brm-3) and bcl7a bcl7b brm-1(brip3 brip4 brm-1) seedlings under short day condition. Methods: Total RNA was extracted from 14-day-old Arabidopsis seedlings under short-day conditions using TRIzol reagent (Invitrogen) following the manufacturer's instructions. RNAs from three biological replicates was sequenced. separately at Novogene, using Illumina Hiseq X-Ten (Sequencing method: Hiseq-PE150). The paired-end RNA-seq reads were quantified by Salmon(Patro et al., 2017) (v1.5.1) with parameters -k 31 and --type quasi. Salmon index was generated using AtRTD2.fa as the reference transcriptome. The gene quantification files of all samples were used as inputs (TPM values) for differential gene expression analysis by DESeq2(Love et al., 2014) v3.10. To analyze differential gene expression in all samples, we used “parametric” Fit type, “ratio” method for estimate Size Factors and Wald significance test function provided by DESeq2. Conclusions: Our study represents the first detailed analysis of bcl7a(brip3), bcl7b(brip4), bcl7a bcl7b(brip3 brip4), bcl7a bcl7b brm-3(brip3 brip4 brm-3) and bcl7a bcl7b brm-1(brip3 brip4 brm-1) transcriptomes, with biologic replicates, generated by RNA-seq technology.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE215151 | GEO | 2024/01/03

REPOSITORIES: GEO

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Next Generation Sequencing Facilitates Quantitative Analysis of in 14-day-old wt, brm-1, brm-3, brip1, brip2, brip1 brip2, brip1 brip2 brm-3 and brip1 brip2 brm-1 seedlings.

Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study are to compare NGS-derived retinal transcriptome profiling (RNA-seq) to microarray and quantitative reverse transcription polymerase chain reaction (qRT–PCR) methods and to evaluate protocols for optimal high-throughput data analysis Methods: RNA from 14-day-old seedlings of wild-type, brip1, brip2, brm-3, brm-1, brip1 brip2, brip1 brip2 brm-3 and brip1 brip2 brm-1 was isolated using the RNAprep Pure Plant Kit as described above. RNAs from three biological replicates was sequenced separately at Novogene, using Illumina Hiseq X-Ten (Sequencing method: Hiseq-PE150). Results: Reads were mapped to the TAIR10 Arabidopsis genome using TopHat (Galaxy V2.1.1 in usegalaxy.org) with default settings, except that a minimum intron length of 20 bp and a maximum intron length of 4,000 bp were required (Paired-end). Then, mapped reads were assembled according to TAIR10 version of genome annotation using cufflinks (version 2.1.1) with default settings. To analyze differential expression, the assembled transcripts from three independent biological replicates in Col and other mutants were included and compared using Cuffdiff (version 2.1.1) with default settings. Conclusions: Our study represents the first detailed analysis of brip1, brip2, brip1 brip2 transcriptomes, with biologic replicates, generated by RNA-seq technology.

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Transcription profiling of Arabidopsis brm-101 and syd-2 mutants 10 day old seedlings

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2008-06-14 | E-GEOD-5806 | biostudies-arrayexpress

Genome-wide profiling of trimethylated histone H3 lysine 27 (H3K27me3) in wide-type, brm, clf, and brm clf mutant seedlings

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BCL7A and BCL7B potentiate SWI/SNF-complex-mediated chromatin accessibility to regulate gene expression and vegetative phase transition in plants

Project description:Switch defective/sucrose non-fermentable (SWI/SNF) chromatin remodeling complexes are multi-subunit machineries that establish and maintain chromatin accessibility and gene expression by regulating chromatin structure. However, how the remodeling activities of SWI/SNF complexes are regulated in eukaryotes remains elusive. B-cell lymphoma/leukemia protein 7A/B/C (BCL7A/B/C) have been reported as subunits of SWI/SNF complexes for decades in animals and recently in plants; however, the role of BCL7 subunits in SWI/SNF function remains undefined. Here, we identify a unique role for plant BCL7A and BCL7B homologous subunits in potentiating the genome-wide chromatin remodeling activities of BRAHMA-SWI/SNF complexes in plants. BCL7A/B require the catalytic ATPase BRAHMA (BRM) to assemble with the signature subunits of the BRM-SWI/SNF complexes and for genomic binding at a subset of target genes. Loss of BCL7A and BCL7B diminishes BRM-mediated genome-wide chromatin accessibility without changing the stability and genomic targeting of the BRM-SWI/SNF complex, highlighting the specialized role of BCL7A/B in regulating remodeling activity. We further show that BCL7A/B fine-tunes the remodeling activity of BRM-SWI/SNF complexes to generate accessible chromatin at the juvenility resetting region (JRR) of the microRNAs MIR156A/C for plant juvenile identity maintenance. In summary, our work uncovers the function of previously elusive SWI/SNF subunits in multicellular eukaryotes and provides insights into the mechanisms whereby plants memorize the juvenile identity through SWI/SNF-mediated control of chromatin accessibility.

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2014-03-01 | E-GEOD-47202 | biostudies-arrayexpress

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Project description:Wide-type, brm, clf, and brm clf mutant seedlings

| PRJNA232492 | ENA

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