Ontology highlight
ABSTRACT:
PROVIDER: PRJNA647709 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR12284467_1.fastq.gz | Fastqsanger.gz | |||
| SRR12284467_2.fastq.gz | Fastqsanger.gz | |||
| SRR12284468_1.fastq.gz | Fastqsanger.gz | |||
| SRR12284468_2.fastq.gz | Fastqsanger.gz | |||
| SRR12284469_1.fastq.gz | Fastqsanger.gz |
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Project description:Purpose: We aim to reveal maize transcriptomic changes with water and salinity treatment. Methods: RNA-seq were used to reveal transcriptome of maize biological replicates with water and salinity treatment. Results: Differentially expressed transcripts were identified by the comparison of biological replicates with water and salinity treatment. Conclusions: We identified differentially expressed genes in respone to salinity treatment in maize.
2022-03-15 | GSE128432 | GEO
Project description:In this study, we aim to present a global view of transcriptome dynamics in different rice cultivars (IR64, Nagina 22 and Pokkali) under control and stress conditions. More than 50 million high quality reads were obtained for each tissue sample using Illumina platform. Reference-based assembly was performed for each rice cultivar. The transcriptome dynamics was studied by differential gene expression analyses between stress treatment and control sample. We collected seedlings of three rice cultivars subjected to control (kept in water), desiccation (transferred on folds of tissue paper) and salinity (transferred to beaker containing 200 mM NaCl solution) treatments. Total RNA isolated from these tissue samples was subjected to Illumina sequencing. The sequence data was further filtered using NGS QC Toolkit to obtain high-quality reads. The filtered reads were mapped to Japonica reference genome using Tophat software. Cufflinks was used for reference-based assembly and differential gene expression was studied using cuffdiff software. The differentially expressed genes during various abiotic stress conditions were identified.
2015-12-31 | E-GEOD-60287 | biostudies-arrayexpress
Project description:Over the years, many traditional rice varietites of India were sourced and studied owing to their ability to withstand abiotic pressures like excessive salinity in the soil and water. These cultivars growing in specific areas of the country represent a rich gene pool from where a deeper understanding of the processes underlying tolerance to abiotic stress can be gained. Indigenous varieties like Nonabokra and Pokkali are known salt tolerant varieties and are being studied in great detail. In the present study, we have analyzed the transcriptomes of the contrasting cultivars; Nonabokra (tolerant), Pokkali (tolerant) and IR29 (susceptible) in order to decipher the differences in their responses to salinity stress by utilizing microarray.
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Project description:Melatonin plays a potential role in multiple plant developmental processes and stress response. However, there are no reports regarding exogenous melatonin promoting rice seed germination under salinity and nor about the underlying molecular mechanisms at genome-wide. Here, we revealed that exogenous application of melatonin conferred roles in promoting rice seed germination under salinity. The putative molecular mechanisms of exogenous melatonin in promoting rice seed germination under high salinity were further investigated through metabolomic and transcriptomic analyses. The results state clearly that the phytohormone contents were reprogrammed, the activities of SOD, CAT, POD were enhanced, and the total antioxidant capacity was activated under salinity by exogenous melatonin. Additionally, melatonin-pre-treated seeds exhibited higher concentrations of glycosides than non-treated seeds under salinity. Furthermore, exogenous melatonin alleviated the accumulation of fatty acids induced by salinity. Genome-wide transcriptomic profiling identified 7160 transcripts that were differentially expressed in NaCl, MT100 and control. Pathway and GO term enrichment analysis revealed that genes involved in the response to oxidative stress, hormone metabolism, heme building, mitochondrion, tricarboxylic acid transformation were altered after melatonin pre-treatment under salinity. This study provides the first evidence of the protective roles of exogenous melatonin in increasing rice seed germination under salt stress, mainly via activation of antioxidants and modulation of metabolic homeostasis.
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Project description:Three rice major tissues, namely flag leaf, shoot and panicle, were involved in this study. Each tissue had two kinds stress treatment, drought and high salinity, in 3 different time courses. For drought treated samples, an additional water recovery was applied. Each experiment had three replicates. Keywords: Comparison of gene expression in three tissues with stress treatment and without treatment To globally elucidate potential genes involved in drought and high-salinity stresses responses in rice, an oligomer microarray covering 37,132 genes including cDNA or EST supported and putative genes was applied to study the expression profiling of shoot, flag leaf, and panicle under drought or high-salinity treatment. Three rice major tissues, namely flag leaf, shoot and panicle, were involved in this study. Each tissue had two kinds stress treatment, drought and high salinity, in 3 different time courses. For drought treated samples, an additional water recovery was applied. Each experiment had three replicates.
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Project description:Yield losses as a result of abiotic stress factors present a significant challenge for the future of global food production. While breeding technologies provide potential to combat negative stress-mediated outcomes over time, interventions which act to prime plant tolerance to stress, via the use of phytohormone-based elicitors for example, could act as a valuable tool for crop protection. However, the translation of fundamental biology into functioning solution is often constrained by knowledge-gaps. Photosynthetic and transcriptomic responses were characterised in young tomato (Solanum lycopersicum) seedlings in response to pre-treatment with a new plant health activator technology, M-bM-^@M-^XAlethea,M-bM-^@M-^Y followed by a subsequent 100 mM salinity stress. Salinity treatment led to a maximal 47% reduction in net photosynthetic rate 8 d following NaCl treatment. In Alethea pre-treated seedlings, sensitivity to salinity stress was markedly reduced during the experimental period. Microarray analysis of leaf transcriptional responses showed that while salinity stress and Alethea individually impacted on largely non-overlapping, distinct groups of genes, Alethea pre-treatment substantially modified the response to salinity. Alethea affected the expression of genes related to biotic stress, ethylene signalling, cell wall synthesis, redox signalling and photosynthetic processes. Since Alethea had clear effects on photosynthesis/chloroplastic function at the physiological and molecular levels, we also investigated the ability of Alethea to protect plants against methyl viologen, a potent generator of oxidative stress in chloroplasts. Alethea pre-treatment produced dramatic reductions in visible foliar necrosis caused by methyl viologen compared with non-primed controls. Tomato leaves from four groups of treated plants were harvested at a single point following treatment for RNA extraction and hybridization on Affymetrix microarrays. Plants came from two initial groups, pre-treated either with water (control) or the Alethea product. Equal numbers of plants from within these groups were subsequently treated either with water (control) or salinity (100 mM NaCl), generating 4 main experimental groups in a 2x2 factorial design. Samples were collected from 3 biological replicate experiments, and each sample included leaves pooled from 3 individual plants from each treatment group.
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