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Expression analysis by RNAseq of roots and shoots of the pho1 mutant expressing the EXS domain of PHO1

ABSTRACT: Expression of the EXS domain of PHO1 in the Arabidopsis thaliana pho1 mutant leads to improved shoot growth in comparison to the parental pho1 mutant. We have used RNAseq to study the gene expression profile in the roots and shoots of the pho1 mutant, two independent transgenic lines of pho1 expressing the EXS domain of PHO1 (lines EXS32 and EXS34) as well as a pho1 mutant transformed with the full length PHO1 gene (complemented line).

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE73067 | GEO | 2016/01/15

SECONDARY ACCESSION(S): PRJNA295989

REPOSITORIES: GEO

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Project description:Plant organs are comprised of distinct cell types with unique assemblages of mRNAs. This is a collection of CEL files of mRNA profiles of the total steady-state mRNAs and polysomal mRNAs of distinct cell types of the whole root and shoot of 7-d-old Arabidopsis thaliana seedlings. The cell type specific mRNA populations are those present in ribosome-mRNA complexes. This sub-population of mRNAs was obtained by first establishing a collection of Arabidopsis lines that express a FLAG-epitope tagged ribosomal protein L18 (RPL18) directed by promoters expressed in specific cell types and regions. Thirteen different promoter:FLAG-RPL18 lines were used. The targeted cell types and promoters included root atrichoblast (non-hair) epidermal cells (pGL2), root endodermis (pSCR), root stelar xylem and pericycle (pWOL, pSHR), root phloem companion cells (phloem CC) (pSUC2, pSultr2;2), root proliferating cells (pRPL11C), root cortex meristematic cells (pCO2), root cortex elongation/maturation cells (pPEP), shoot mesophyll (pRBCS), shoot epidermis (pCER5), shoot guard cells (pKAT1), shoot bundle sheath (pSultr2;2), shoot phloem CC (pSUC2) and shoot trichomes (pGL2). A CaMV 35S promoter:FLAG-RPL18 line was used to obtain the polysomal mRNA of multiple cell types. The immunopurification of ribosome-mRNA complexes of specific cell types/regions was accomplished by the method described in Zanetti et al. (Plant Physiology, 138, 624-635; 2005). Hybridization of the immunopurified mRNAs to the Affymetrix ATH1 DNA microarray platform and subsequent data analysis permitted the identification of transcripts that are enriched or depleted in specific cell types/regions of roots and shoots. The dataset includes samples from cell types/regions from seedlings grown under control conditions and cell types/regions of seedlings exposed to low oxygen stress (hypoxia) for 2 h. Experiment Overall Design: 79 samples, 2 conditions (2 h hypoxia stress, 2 h non-stress), 2 RNA pools (Total mRNA and polysomal mRNA), 2 organs, 13 promoter lines, 2-4 replicates

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Expression analysis by RNAseq of roots and shoots of the pho1 mutant expressing the EXS domain of PHO1

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