Genome-wide study of OsNF-YB1 regulatory network in rice
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ABSTRACT:
PROVIDER: PRJNA293275 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR2174483_1.fastq.gz | Fastqsanger.gz | |||
| SRR2174483_2.fastq.gz | Fastqsanger.gz | |||
| SRR2174484_1.fastq.gz | Fastqsanger.gz | |||
| SRR2174484_2.fastq.gz | Fastqsanger.gz | |||
| SRR2174485.fastq.gz | Fastqsanger.gz |
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Project description:OsNF-YB1 is a transcription factor that plays important roles during rice grain filling. OsNF-YB1 is specifically expressed in aleurone layer of developing endosperm and OsNF-YB1 RNAi lines showed retardation in grain filling and produced small grains with chalky endosperm as well as the altered starch quality. To reveal the transcriptional regulatory framework of OsNF-YB1, we determined OsNF-YB1 DNA binding targets using chromatin immunoprecipitation coupled to high-throughput sequencing (ChIP-Seq). ChIP-Seq analysis detected 933 binding peaks distributed 743 neighbor genes. OsNF-YB1 directly regulates genes involved in nutrient transport including sugar and amino acids, and interestingly, different from the reported binding site of NF-Y complex, the GCC-box (a binding motif of ERF transcription factors) was enriched in the binding peaks of OsNF-YB1.
2016-12-16 | GSE72186 | GEO
Project description:Rice NF-YC11 is a transcription factor that plays a key regulatory role in storage substance accumulation during rice grain filling. To reveal the transcription regulatory network of NF-YC11 in rice, we performed genome-wide identification of NF-YC11 targets by immunoprecipitation sequencing (ChIP-seq) analyses in the NF-YC11-overexpression plants.
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Project description:Cellularization is a key event during the development of the endosperm. Our understanding of the developmental regulation of cellularization has been limited for plants other than Arabidopsis. We found that the activation of OsbZIP76 coincided with the initiation of cellularization of rice. Either knockdown or knockout of OsbZIP76 led to precocious cellularization. Many genes involved in endosperm development or starch biosynthesis were prematurely activated in the caryopsis at two days after fertilization. The results implied that OsbZIP76 is involved in the regulation of cellularization in rice. As a putative transcription factor, OsbZIP76 alone lacked transcriptional activation activity. However, it was able to interact with OsNF-YB9 and OsNF-YB1, two nuclear factor Y (NF-Y) family transcription factors, both in yeast and in planta. OsbZIP76 and OsNF-YB9 showed similar endosperm-preferential expression patterns and the transiently expressed proteins were colocalized in the epidermal cells of tobacco. As with osnf-yb1 mutants, the osbzip76 mutants showed reduced seed size and reduced apparent amylose content of the seeds. We also confirmed that OsbZIP76 is an imprinted gene in rice, the expression of which depended on the genetic background. Our results suggested that OsbZIP76 is an endosperm-expressed imprinted gene to regulate development of the endosperm in rice.
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Project description:ONAC127 and ONAC129 are NAC transcription factors that involved in abiotic stress response and play key regulatory roles in apoplasmic transportation during rice caryopsis filling. To reveal the transcription regulatory network of ONAC127 and ONAC129 in rice caryopsis, we performed genome-wide identification of ONAC127 and ONAC129 targets by immunoprecipitation sequencing (ChIP-seq) analyses in the overexpression lines of ONAC127 and ONAC129 under natural heat stress(H) and normal cultivation condition(N) with three technical replicates.
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Project description:Genome-wide study of NF-YC11 regulatory network in rice
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Project description:Genome-wide study of ONAC127 and ONAC129 regulatory network in rice caryopsis
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Project description:Analysis of gene expression level. The hypothesis tested in the present study was that OsNF-YB1 is specifically expressed in aleurone layer of developing endosperm and suppressed expression of OsNF-YB1 results in a reduced grain-filling rate and small grains. Of the down-regulated genes, the enrichment of transmembrane transport and ATP biosynthetic process is consistent with the decreased grain-filling rate.
2016-12-16 | GSE72185 | GEO
Project description:The OsMyb4 transcription factor of rice represents a more recent example of a regulatory gene used in various attempts to develop stress-tolerant crops by regulon engineering. Although OsMyb4 confers tolerance to low temperature and drought by affecting the biosynthesis of compatible osmolytes and the phenylpropanoid metabolic process, the exact composition and scope of the OsMyb4 network has not been established from the previous analysis of heterologous overexpression in Arabidopsis. Further characterization of the OsMyb4 regulon at the global scale will facilitate understanding of the intricate underpinnings of a pathway independent of the DREB/CBF network. To dissect the OsMyb4 network of rice in relation to chilling stress response mechanisms, we conducted a gene expression profiling using transgenic rice overexpressing the OsMyb4 cDNA.
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Project description:To better understand the response mechanism of rice plants to Rice black-streaked dwarf virus (RBSDV) infection, we performed a comparative transcriptome analysis between the RBSDV-infected and non-infected rice plants. A total of 1342 mRNAs and 22 lncRNAs were identified to be differentially expressed after RBSDV infection. Most differentially expressed transcripts involved in the plant-pathogen interaction pathway were upregulated after RBSDV infection, indicating the activation of rice defense response by RBSDV. A network of differentially expressed lncRNAs (DElncRNAs) and mRNAs (DEmRNAs) was then constructed. In this network, there are 56 plant-pathogen interaction-related DEmRNAs co-expressing with 20 DElncRNAs, suggesting these DElncRNAs and DEmRNAs may play essential roles in rice innate immunity against RBSDV.
2020-08-25 | GSE156747 | GEO
Project description:The OsMyb4 transcription factor of rice represents a more recent example of a regulatory gene used in various attempts to develop stress-tolerant crops by regulon engineering. Although OsMyb4 confers tolerance to low temperature and drought by affecting the biosynthesis of compatible osmolytes and the phenylpropanoid metabolic process, the exact composition and scope of the OsMyb4 network has not been established from the previous analysis of heterologous overexpression in Arabidopsis. Further characterization of the OsMyb4 regulon at the global scale will facilitate understanding of the intricate underpinnings of a pathway independent of the DREB/CBF network. To dissect the OsMyb4 network of rice in relation to chilling stress response mechanisms, we conducted a gene expression profiling using transgenic rice overexpressing the OsMyb4 cDNA. This experiment describes the analysis of the gene expression changes as a result of supra-optimal expression of transcription factor (OsMYB4) overexpressed as transgenic in the cv. Nipponbare. Control (WT) and transgenic (OsMYB4-OX) samples were labeled with Cy3 and Cy5, respectively. No dye-swap replicates was performed in this experiment. The microarray platform used in this study was the 45k oligonucleotide microarray (www.ricearray.org), which comes in pairs of slides A and B (each containing about 50% of the total number of features). The data described in this series includes all hybridizations with slide A and with slide B. Experiments were performed with two independent biological replicates (R1 and R2) for each transgenic line.
2010-09-30 | E-GEOD-21009 | biostudies-arrayexpress