Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1058000 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:rs09-03_zf1 - zf1 experiment - Transcriptome analysis of mutants for novel AGO-hook type proteins in Arabidopsis thaliana - Plants were grown on soil in controlled environment under LD (16 h light/8 h dark) and the rosette leaves (8-leaf stage seedlings) were collected for RNA preparation Keywords: normal vs transgenic comparison
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Project description:We investigated DNA methylation variation in Swedish Arabidopsis thaliana accessions. We found that methylation of transposable elements is temperature sensitive and associated with genetic polymorphism in both cis and trans, whereas gene body methylation is associated with genetic polymorphism in trans. Additionally, complementary RNA-Seq data for the Arabidopsis accessions were used to correlate methylation changes with gene expression across environments. mRNA-sequencing (mRNA-Seq) of 160 Arabidopsis thaliana accessions grown at 10 C and 163 grown at 16 C. The source tissue for RNA collection was whole rosette at the 9-leaf stage.
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Project description:rs09-03_zf1 - zf1 experiment - Transcriptome analysis of mutants for novel AGO-hook type proteins in Arabidopsis thaliana - Plants were grown on soil in controlled environment under LD (16 h light/8 h dark) and the rosette leaves (8-leaf stage seedlings) were collected for RNA preparation Keywords: normal vs transgenic comparison 4 dye-swap - CATMA arrays
2011-01-01 | E-GEOD-21646 | biostudies-arrayexpress
Project description:Nontargeted and targeted metabolomics measurements of abiotic stress responses in three-week-old Arabidopsis thaliana plants' rosette leaf tissue for Col-0 wild type plants and double/triple knockout mutants of aquaporins (pip2;1 pip2;2 and pip2;1 pip2;2 pip2;4) treated with drought, heat at different air humidities, or combined drought-heat stress at different air humidities. This experiment contains FT-ICR-MS measurements for 103 Arabidopsis thaliana rosette leaf samples covering three genotypes under six different environmental conditions. The three genotypes comprise the Col-0 wildtype and two loss-of-function mutants of aquaporins, a pip2;1 pip2;2 double mutant and a pip2;1 pip2;2 pip2;4 triple mutant (respective AGI locus identifiers: AT3G53420, AT2G37170, AT5G60660). The six conditions include control condition (well-watered, 22 °C, 70% relative air humidity), drought stress (one week without watering), heat stress without changing the absolute humidity of the ambient air (6 hours at 33 °C, 37% relative air humidity), heat stress with supplemented air humidity to maintain a constant vapor pressure deficit before and during the heat episode (6 hours at 33 °C, 84% relative air humidity), and the combinations of drought pretreatment with each of the two heat stress variants (one week of drought followed by 6 hours of heat stress). Samples from all conditions were harvested at the same time (within 15 min starting at 5 pm). For validation, GC-TOF-MS measurements were done for two genotypes (wildtype, double mutant) and two conditions (drought, control) on partially overlapping samples.
2017-07-17 | MTBLS355 | MetaboLights
Project description:Differentially regulated genes in rosette leaves and roots of hydroponically grown Arabidopsis thaliana Col-0 and nrt1.5-5 mutant plants were identified by microarray analyses.
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Project description:Small RNA sequences from Arabidopsis lyrata leaves, as isolated from a single sample of rosette leaf tissue. These data were analyzed to 1) examine microRNA processing accuracy in A. lyrata and 2) to examine patterns of 24nt siRNA accumulation in A. lyrata.
2010-03-01 | GSE18077 | GEO
Project description:MicroRNAs (miRNAs) and small interfering RNAs (siRNAs) are produced in diverse species and control gene expression and epigenetic regulation. Although physiological and developmental roles of miRNAs and siRNAs have been extensively studied in plants and animals, expression diversity and evolution of miRNAs and siRNAs in closely related species are poorly understood. Here we report comprehensive analyses of miRNA expression and siRNA distribution in two closely related species (Arabidopsis thaliana and A. arenosa), a natural allotetraploid (A. suecica), and two resynthesized allotetraploid lines (F1 and F7) derived from A. thaliana and A. arenosa. The siRNA populations present in A. thaliana were maintained in resynthesized allotetraploids and A. suecica. Although miRNA sequences were highly conserved, their expression patterns were highly variable between the allotetraploids and their progenitors. Significantly, many miRNAs were nonadditively expressed in the allotetraploids relative to the parents and preferentially degraded A. thaliana or A. arenosa targets. Stable inheritance of parental siRNAs in allopolyploids helps maintain genome stability in response to M-bM-^@M-^\genomic shockM-bM-^@M-^], whereas expression diversity of miRNAs and their target preference lead to interspecies variation in gene expression, growth, and development. NOTE: sff files unavailable for Samples AaL and F1L. 10 samples examined: Arabidopsis thaliana leaf, flower, Arabidopsis arenosa leaf and flower, F1 synthetic allopolyploid leaf and flower, F7 synthetic allopolyploid leaf and flower, Arabidopsis suecica leaf and flower. To determine small RNA profiles in Arabidopsis allotetraploids and their progenitors, we made 10 small RNA libraries from rosette leaves (L) and flower buds (F) in five lines, A. thaliana, A. arenosa, Allo(F1), Allo733(F7), and A. suecica. To examine expression of small RNAs among related species and their hybrids, we employed miRNA microarrays and compared small RNA levels.
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