Ontology highlight
ABSTRACT:
PROVIDER: PRJNA874614 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR21291815_1.fastq.gz | Fastqsanger.gz | |||
| SRR21291815_2.fastq.gz | Fastqsanger.gz | |||
| SRR21291816_1.fastq.gz | Fastqsanger.gz | |||
| SRR21291816_2.fastq.gz | Fastqsanger.gz | |||
| SRR21291817_1.fastq.gz | Fastqsanger.gz |
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Project description:Seasonal wood development results in two distinct wood types: earlywood (EW) and latewood (LW), which is the major cause of wood qaulity variation. We investigate transcriptome reorganization during seasonal wood development in radiata pine using a newly developed 18k cDNA microarrays.
2009-10-31 | GSE15230 | GEO
Project description:Wood maturation produces two distinct wood tissues: juvenile wood (JW) and mature wood (LW), which are the major cause of wood qaulity variation within a tree. We investigate transcriptome reorganization during wood maturation process in radiata pine using a newly developed 18k cDNA microarrays.
2011-06-01 | GSE20535 | GEO
Project description:Compression (CW) and opposite wood (OW) are formed in the uniderside and upperside of conifer branches respectively in response to gravity stress. We investigated genes differentially transcribed between the underside and upside of radiate pine branches using cDNA microarrays with a view to plant gravitropism. Six trees with well-developed branches were selected from a radiata pine commercial plantation (aged 13 years) located at Bondo, NSW, Australia (35º 16' 44.04 S, 148º 26' 54.66 E). The largest branch from each tree was further selected for sampling, including three branches sampled in April 2007 (autumn in Bondo) and three sampled in October 2007 (spring). Bark was removed from the base part (about 10 cm in length) of each branch. Developing xylem tissues were scraped from the exposed upperside and underside surface respectively with a sharp chisel. Samples were immediately placed into 50 ml BD FalconTM tubes filled with liquid nitrogen. Gene expression in the underside and upperside of branches was compared using radiata pine cDNA microarrays.
2014-05-30 | E-GEOD-47167 | biostudies-arrayexpress
Project description:Seasonal wood development results in two distinct wood types: earlywood (EW) and latewood (LW), which is the major cause of wood qaulity variation. We investigate transcriptome reorganization during seasonal wood development in radiata pine using a newly developed 18k cDNA microarrays. Three sampling trees each at juvenile (5 yrs), transition (9 yrs) and mature (14 yrs) ages (based on the wood rings at breast height) were selected from a plantation forest of radiata pine at Bondo, NSW , Australia (35º 16' 44.04 S, 148º 26' 54.66 E). The sampling trees at juvenile and mature ages were grown within 50 m distance and under similar environment. Two sampling trees at rotation age (30 yrs) were chosen at Yarralumla, ACT, Australia (35° 18' 27'' S, 149° 7' 27.9'' E).
2010-10-08 | E-GEOD-15230 | biostudies-arrayexpress
Project description:Sirex noctilio F., a Eurasian horntail woodwasp recently introduced into North America, oviposits in pines and other conifers and in the process spreads a phytopathogenic fungus that serves as a food source for its larvae. During oviposition the woodwasp also deposits a mucus produced in its acid (venom) gland that alters pine defense responses and facilitates infection by the fungus. A 26,496-feature loblolly pine cDNA microarray was used to survey gene expression of pine tissue responding to S. noctilio venom. Six genes were selected for further assessment by qRT-PCR, including one that encoded an apparent PR-4 protein and another that encoded a thaumatin-like protein. Expression of both was strongly induced in response to venom, while expression of an apparent actin gene (ACT1) was stable in response to the venom. The pattern of gene response was similar in Pinus taeda L. and P. radiata D. Don, but the magnitude of response in P. radiata was significantly stronger for each of the induced genes. The magnitude of biomarker gene response to venom also varied according to genotype within these two species. The qRT-PCR assay was used to demonstrate that the primary bioactive component in S. noctilio venom is a polypeptide.
2012-08-10 | GSE40000 | GEO
Project description:Comparison of transcriptomes from bark, developing xylem and xylem of P. radiata saplings exposed to 0 or 1mg of Ethephon in lanolin for 1 or 8 weeks We developed an oligonucleotide microarray using sequences (mostly from Pinus taeda) from public sequence databases. These sequences were reconstituted into a non-redundant database by CAP3 assembly and used as templates for automated design of 60-mer oligonucleotide probes through eArray, Agilent’s online facility. The microarray slides, manufactured by Agilent, were used to monitor gene expression in an Ethephon-induction experiment. Ethephon was dispersed in lanolin paste and applied in a 3 cm band near the base of the stem of 2-year old Pinus radiata saplings. RNA was extracted from bark, cambial region, also known as “developing xylem”, and xylem tissues exposed for 1 or 8 weeks to Ethephon. The transcriptomes from these extracts were compared by hybridization onto the All-Pinus microarray slides. Statistically significant differentially expressed genes identified by limma (Linear Models for Microarray Data) were subsequently analysed by singular enrichment analysis through the Database for Annotation, Visualization and Integrated Discovery (DAVID) portal. Results revealed that bark, cambial region and xylem generate mostly mutually exclusive cohorts of genes and Gene Ontology (GO) classes. Ethephon induction led to the upregulation of xylem genes related to the metabolism of phenylpropanoids and flavonoids and to defence responses, specifically, fungal/insect attack and oxidative stress. Independent validation of the microarray data for five genes was obtained by quantitative RT-PCR. The results are also interpreted in reference to gross and microscopic morphological changes. These results confirm the utility of the All-Pinus microarray for transcriptomic research in P. radiata.
2012-11-15 | GSE42300 | GEO
Project description:affy_popsec_orleans_poplar - xyleme - This project aims to identify candidate genes for water deficit acclimation and/or adaptation in a tree species: poplar. Due to compelling evidence that transcriptional regulation plays a major role in regulating many biological processes, we will look for genes and gene expression networks related to drought stress. We intend to analyse the transcriptome in two poplar genotypes of contrasted tolerance to water deficit, at various stages and intensities of stress and simultaneously in whole xylem and cambial zone from young trees. The co-analysis of two genotypes of contrasted tolerance to water deficit should allow to better discriminating genes presenting a potential adaptative character from genes responding passively to the constraint. The consideration of both whole xylem and cambial zone will enable us to discriminate between regulations events originating from very young xylem cells undergoing their first steps of xylem differentiation (cambial zone) compared to whole xylem sample enriched in more differentiated xylem cells and parenchyma ray cells.-Two poplar clones, named Soligo (S) and Carpaccio (C) were submitted to 4 treatments: non-stressed control, severe-drought stress, mild-drought stress and early-drought stress. Two pools of 2 or 3 trees were considered as biological replicates. Two different samples were collected on each individual tree: whole stem xylem (X) and cambial zone plus very young expanding xylem (Y). Total RNAs were extracted from each tree and assemble in pool of 3 or 2 individuals using equimolar ratio for each X and for Y. One affymetrix slide corresponds to one pooled RNA sample (X or Y). A total number of slides : 4 treatments x 2 clones x 2 tissues x 2 biological replicates (pool) = 32 slides, will be done. Keywords: genotype and ecotype comparison,organ comparison,treated vs untreated comparison 32 arrays - poplar
2012-12-15 | E-GEOD-17220 | biostudies-arrayexpress
Project description:Sirex noctilio F., a Eurasian horntail woodwasp recently introduced into North America, oviposits in pines and other conifers and in the process spreads a phytopathogenic fungus that serves as a food source for its larvae. During oviposition the woodwasp also deposits a mucus produced in its acid (venom) gland that alters pine defense responses and facilitates infection by the fungus. A 26,496-feature loblolly pine cDNA microarray was used to survey gene expression of pine tissue responding to S. noctilio venom. Six genes were selected for further assessment by qRT-PCR, including one that encoded an apparent PR-4 protein and another that encoded a thaumatin-like protein. Expression of both was strongly induced in response to venom, while expression of an apparent actin gene (ACT1) was stable in response to the venom. The pattern of gene response was similar in Pinus taeda L. and P. radiata D. Don, but the magnitude of response in P. radiata was significantly stronger for each of the induced genes. The magnitude of biomarker gene response to venom also varied according to genotype within these two species. The qRT-PCR assay was used to demonstrate that the primary bioactive component in S. noctilio venom is a polypeptide. Reference design. Two condition experiment, two time points each compared to a common reference. Two biological replicates, two technical replicates, 12 slides total, duplicate/re-scanned images submitted for each slide.
2012-08-09 | E-GEOD-40000 | biostudies-arrayexpress
Project description:affy_popsec_orleans_poplar - xyleme - This project aims to identify candidate genes for water deficit acclimation and/or adaptation in a tree species: poplar. Due to compelling evidence that transcriptional regulation plays a major role in regulating many biological processes, we will look for genes and gene expression networks related to drought stress. We intend to analyse the transcriptome in two poplar genotypes of contrasted tolerance to water deficit, at various stages and intensities of stress and simultaneously in whole xylem and cambial zone from young trees. The co-analysis of two genotypes of contrasted tolerance to water deficit should allow to better discriminating genes presenting a potential adaptative character from genes responding passively to the constraint. The consideration of both whole xylem and cambial zone will enable us to discriminate between regulations events originating from very young xylem cells undergoing their first steps of xylem differentiation (cambial zone) compared to whole xylem sample enriched in more differentiated xylem cells and parenchyma ray cells.-Two poplar clones, named Soligo (S) and Carpaccio (C) were submitted to 4 treatments: non-stressed control, severe-drought stress, mild-drought stress and early-drought stress. Two pools of 2 or 3 trees were considered as biological replicates. Two different samples were collected on each individual tree: whole stem xylem (X) and cambial zone plus very young expanding xylem (Y). Total RNAs were extracted from each tree and assemble in pool of 3 or 2 individuals using equimolar ratio for each X and for Y. One affymetrix slide corresponds to one pooled RNA sample (X or Y). A total number of slides : 4 treatments x 2 clones x 2 tissues x 2 biological replicates (pool) = 32 slides, will be done. Keywords: genotype and ecotype comparison,organ comparison,treated vs untreated comparison
2012-12-15 | GSE17220 | GEO