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Gene expression in wild-type and transgenic plants overexpressing rice OsTOP6A1 gene

ABSTRACT: 10-day-old wild-type and homozygous transgenic Arabidopsis seedlings (overexpressing rice topoisomerase 6 subunit A1; OsTOP6A1) grown under normal growth conditions were used for total RNA isolation. The 5 micrograms of each total RNA sample was processed for microarray analysis according to Affymetrix protocol. Keywords: Arabidopsis, wild-type and transgenic seedlings, differential gene expression

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE6812 | GEO | 2007/12/26

SECONDARY ACCESSION(S): PRJNA99187

REPOSITORIES: GEO

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Gene expression in wild-type and transgenic plants overexpressing rice OsTOP6A1 gene

Project description:10-day-old wild-type and homozygous transgenic Arabidopsis seedlings (overexpressing rice topoisomerase 6 subunit A1; OsTOP6A1) grown under normal growth conditions were used for total RNA isolation. The 5 micrograms of each total RNA sample was processed for microarray analysis according to Affymetrix protocol. Experiment Overall Design: The experiment involves the study of differential gene expression in transgenic Arabidopsis seedlings overexpressing rice topoisomerase 6 subunit A1 (OsTOP6A1) cDNA as compared to wild-type.Three biological replicates for each sample were used for microarray analysis.

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Gene expression in wild-type and transgenic plants overexpressing rice topoisomerase6 genes

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Project description:Ten-day old seedlings of Arabidopsis wildtype Col-0, and SsE1-overexpressing lines SsE1-GFP-5 and SsE1-GFP-8 were collected for total RNA extraction. Three biological replicates were prepared for each genotype.

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Transcription profiling of Arabidopsis plants overexpressing SsCBF1

Project description:Solanum lycopersicoides (LA2408), collected at higher altitudes (up to 3600 meters) than any of other solanum species, is a wild nightshade distant-allied to cultivated tomato. Many traits of Solanum lycopersicoides including cold tolerance, resistance to virus diseases and insect pests were previously confirmed. Thus, it is an ideal candidate plant for isolating cold-tolerance-related genes. In this study, we successfully cloned the full-length cDNA of the CBF1 gene from Solanum lycopersicoides which was designated as SsCBF1. In order to investigate the possible functions of SsCBF1 in plant growth and stress responses, we generated transgenic Arabidopsis overexpressing SsCBF1. We employed the RNA-seq approach to identify the differentially expressed genes between the two genotypes. Processing of RNA samples on the Illumina HiSeq 2000 system produced more than 20 million reads, each 100bp in length, encompassing 2.0 Gb of sequence data for each sample which was then mapped to the reference genome. The statistical analysis identified a total of 338 differentially expressed genes between Col-0 (WT) and transgenic Arabidopsis overexpressing SsCBF1 with the criteria of Q-value < 0.001 and fold change >2, among which 120 (35.5%) were up-regulated and 218 (64.5%) were down-regulated. RNA-sequencing was carried out using one transgenic line (35S:SsCBF1-11) and the Col-0 (WT) plants. Total RNA was isolated with Trizol reagent (Invitrogen, USA) from the aerial parts of 4-week-old seedlings grown in parallel under unstressed conditions. Materials from 20 plants of each genotype were pooled for RNA isolation.

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wip overexpressing plants-Transcriptome analysis of WIP overexpressing plants

Project description:adt10-01_wip2 - wip overexpressing plants - Identification of genes induced or repressed by WIP genes - The objective is to identify genes responsible for the phenotypes observed in WIP overexpressing lines. WIP transcription factors are involved in reproductive and vegetative development by acting on the remodeling of various tissues. The WIP related processes have a major impact, in particular on reproduction (sex determination, fertilization, development of the seed). The way of action of these transcription factors is probably conserved, their effect depending only on their specificity of expression. Two WIP genes, NTT and TT1, was overexpressed in Arabidopsis thaliana. The objective is to compare the common deregulated genes (and in particular repressed) in the transcriptome of these two overexpressor lines, to highlight their mode of action and the way they act on the tissue in which they are expressed. Keywords: gene knock in (transgenic),normal vs transgenic comparaison

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