Ontology highlight
ABSTRACT:
PROVIDER: PRJNA907206 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR22477800_1.fastq.gz | Fastqsanger.gz | |||
| SRR22477800_2.fastq.gz | Fastqsanger.gz | |||
| SRR22477801_1.fastq.gz | Fastqsanger.gz | |||
| SRR22477801_2.fastq.gz | Fastqsanger.gz | |||
| SRR22477802_1.fastq.gz | Fastqsanger.gz |
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Project description:With the growing limitations on arable land, alfalfa (a widely cultivated, low-input forage) is now being selected to extend cultivation into saline lands for low-cost biofeedstock purposes. Here, minerals and transcriptome profiles were compared between two new salinity-tolerant North American alfalfa breeding populations and a more salinity-sensitive Western Canadian alfalfa population grown under hydroponic saline conditions. All three populations accumulated two-fold higher sodium in roots than shoots as a function of increased electrical conductivity. At least 50% of differentially expressed genes (p < 0.05) were down-regulated in the salt-sensitive population growing under high salinity, while remaining unchanged in the saline-tolerant populations. In particular, most reduction in transcript levels in the salt-sensitive population were observed in genes specifying cell wall structural components, lipids, secondary metabolism, auxin and ethylene hormones, development, transport, signalling, heat shock, proteolysis, pathogenesis-response, abiotic stress, RNA processing, and protein metabolism. Transcript diversity for transcription factors, protein modification, and protein degradation genes was also more strongly affected in salt-tolerant CW064027 than in salt-tolerant Bridgeview and salt-sensitive Rangelander, while both saline-tolerant populations showed more substantial up-regulation in redox-related genes and B-ZIP transcripts. The report highlights the first use of bulked genotypes as replicated samples to compare the transcriptomes of obligate out-cross breeding populations in alfalfa. Three lines of Alfalfa (salt-tolerant CW064027, salt-tolerant Bridgeview, salt-sensitive Rangelander) were grown on 3 different concentrations of salt. For each cultivar-salt condition, 3 biological replicates were collected for a total of 27 samples.
2016-07-26 | E-GEOD-84825 | biostudies-arrayexpress
Project description:With the growing limitations on arable land, alfalfa (a widely cultivated, low-input forage) is now being selected to extend cultivation into saline lands for low-cost biofeedstock purposes. Here, minerals and transcriptome profiles were compared between two new salinity-tolerant North American alfalfa breeding populations and a more salinity-sensitive Western Canadian alfalfa population grown under hydroponic saline conditions. All three populations accumulated two-fold higher sodium in roots than shoots as a function of increased electrical conductivity. At least 50% of differentially expressed genes (p < 0.05) were down-regulated in the salt-sensitive population growing under high salinity, while remaining unchanged in the saline-tolerant populations. In particular, most reduction in transcript levels in the salt-sensitive population were observed in genes specifying cell wall structural components, lipids, secondary metabolism, auxin and ethylene hormones, development, transport, signalling, heat shock, proteolysis, pathogenesis-response, abiotic stress, RNA processing, and protein metabolism. Transcript diversity for transcription factors, protein modification, and protein degradation genes was also more strongly affected in salt-tolerant CW064027 than in salt-tolerant Bridgeview and salt-sensitive Rangelander, while both saline-tolerant populations showed more substantial up-regulation in redox-related genes and B-ZIP transcripts. The report highlights the first use of bulked genotypes as replicated samples to compare the transcriptomes of obligate out-cross breeding populations in alfalfa.
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Project description:Brassica oleraceae plants were treated with jasmonic acid either at the roots or two leaves. An acidic (HCl) water sollution with the same pH as the jasmonic acid sollution was also applied to two leaves of the root jasmonic acid treated plants, and to the roots of leaf jasmonic acid treated plants. Control plants received a mock treatment on roots and leaves with acidic water of the same pH as the jasmonic acid sollution. The whole root system and two systemic leaves were harvested separately at 6, 18 and 30 h after treatment. For each time point, tissue and treatment, three biological replicates (except two replicates for 'Root-Cont-18h' sample) were made consisting of pooled tissue samples from 10 plants. Gene expression was analyzed in both tissues using the 29,000 element Arabidopsis Oligonucleotide Microarrays (Qiagen-Operon Arabidopsis Genome Array Ready Oligo Set version 3.0). Two treatments (root and leaf jasmonic acid) and control treatment. For each treatment, three biological replicates (except two replicates for 'Root-Cont-18h' sample) were taken of two tissues (roots and leaves). Samples were taken at three time points (6, 18 and 30 h). Single color hybridizations were performed, which lead to 53 slides in total.
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