Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA109631 | ENA |
REPOSITORIES: ENA
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Project description:The aim of this study was to analyze the impact of autotetraploidy on gene expression in Arabidopsis thaliana by comparing diploid versus tetraploid transcriptomes. In particular, this included the comparison of the transcriptome of different tetraploid A. thaliana ecotypes (Col-0 vs. Ler-0). The study was extended to address further aspects. One was the comparison of the transcriptomes in subsequent generations. This intended to obtain information on the genome wide stability of autotetraploid gene expression. Another line of work compared the transcriptomes of different diploid vs. tetraploid tissues. This aimed to investigate whether particular gene groups are specifically affected during the development of A. thaliana autotetraploids. Samples 1-8: Arabidopsis thaliana Col-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Col-0 seedlings. The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 lines. Samples 9-12: Arabidopsis thaliana Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Ler-0 seedlings. The experiment was carried out with pedigree of independently generated and assessed tetraploid Ler-0 lines. Samples 13-24: Arabidopsis thaliana Col-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Col-0 leaves (6th - 8th). The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 lines. Samples 25-32: Arabidopsis thaliana Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Ler-0 leaves (6th - 8th). The experiment was carried out with pedigree of independently generated and assessed tetraploid Ler-0 lines. Samples 33-36: Arabidopsis thaliana Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of tetraploid vs. tetraploid Ler-0 seedlings from the second (F2) and third (F3) generation after induction, respectively. The experiment was carried out with pedigree of independently generated and assessed tetraploid Ler-0 lines. Samples 37-40: Arabidopsis thaliana Col-0 tetraploid transcriptome. Transcriptional profiling and comparison of tetraploid vs. tetraploid Col-0 seedlings from the second (F2) and third (F3) generation after induction, respectively. The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 lines. Samples 41-44: Arabidopsis thaliana Col-0/Ler-0 diploid transcriptome. Transcriptional profiling and comparison of diploid Col-0 vs. diploid Ler-0 seedlings. The experiment was carried out with pedigree of esrablished lines. Samples 45-48: Arabidopsis thaliana Col-0/Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of tetraploid Col-0 vs tetraploid Ler-0 seedlings. The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 and Ler-0 lines.
2010-05-01 | GSE18482 | GEO
Project description:To understand how GA functions in regulating embryo development, a genome-wide transcriptomic analysis was carried out using 9DAF seeds dissected from siliques of dellaq (rga28 gai rgl1 rgl2) and the wild-type (col-0-2) grown in full-spectrum white fluorescent light at 22°C under long day conditions (16 h light/8 h dark). Then we found that GA regulates embryo development via DELLA-LEC1interaction, a subsequent genome-wide transcriptomic analysis was carried out using 9DAF seeds dissected from siliques of lec1-4 and the wild-type (col-0-1) in the same growth condition. Basing on the criteria of 1.5-fold cutoff for the genes with 5% false discovery rate, we first identified the differentially expressed genes in dellaq vs col-0-2, lec1-4 vs Col-0-1 subsets, which are referred to as DELLA and LEC1 regulated genes. These data reveal that DELLAs and LEC1 co-target a set of common genes in late embryogenesis, strongly supporting the role of DELLA-LEC1 in embryo development.
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Project description:We generated more than 23,000 independent Arabidopsis transgenic lines that expressed rice fl-cDNAs (Rice FOX Arabidopsis lines). The short generation time and rapid and efficient transformation frequency of Arabidopsis enabled the functions of the rice genes to be analyzed rapidly. We screened rice FOX Arabidopsis lines for alterations in morphology, photosynthesis, element accumulation, pigment accumulation, hormone profiles, secondary metabolites, pathogen resistance, salt-tolerance, UV signaling, high light tolerance, and heat stress tolerance. Since we isolated 6 genes (AK069096, AK073112, AK073675, AK065297, AK102323 and AK073210) causing an increase in the abundance of metabolites or pigments detected by absorption data, we investigated the expression profiles in transgenic plants by using microarray analysis. Expression of the genes encoding chalcone synthase and dihydroflavonol-4-reductase was increased in all 6 cDNA transformants. These results indicate that an increase in expression of the genes encoding flavonoid biosynthesis enzymes caused an accumulation of pigments in these 6 transformants. Experiment Overall Design: Total RNA was isolated from aerial parts of re-transformants of some rice cDNAs and wild type using an RNAqueous Kit (Ambion, Inc, USA).
2008-12-05 | E-GEOD-13165 | biostudies-arrayexpress
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Project description:Transcription factors encoded by GLK genes are putative positive regulators of chloroplast development. To identify the potential downstream genes regulated by OsGLK1, we performed the rice 44k oligo microarray analysis. Keywords: over-expression of full-length cDNAs
2008-06-15 | GSE11451 | GEO
Project description:Transcriptional profiling of roots in Arabidopsis Col-0 with 10 µM AlCl3 6hrs vs w/o AlCl3 6hrs
2014-10-11 | GSE62238 | GEO
Project description:Transgenic AhNF-YC-OE vs Wild type Col 0 Arabidopsis plants
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