Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1066513 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Microarray experiments were used to build a profile of candidate stigma genes that facilitate early pollination events. Of over 24,000 genes probed, we identified 11,403 genes expressed in stigma tissue, 317 of these that are stigma specific (not expressed in control tissues). To appear in Sexual Plant Reproduction, Swanson, Clark, and Preuss, "Expression Profiling of Arabidopsis Stigma Tissue Identifies Stigma-Specific Genes." Experiment Overall Design: Expression profiles of stigma, ovary and seedling tissues were studied and contrasted. Four samples each of seedling and ovary were used; and three stigma samples.
2008-06-12 | E-GEOD-3056 | biostudies-arrayexpress
Project description:Microarray experiments were used to build a profile of candidate stigma genes that facilitate early pollination events. Of over 24,000 genes probed, we identified 11,403 genes expressed in stigma tissue, 317 of these that are stigma specific (not expressed in control tissues). Keywords: Comparative hybridization
2005-08-06 | GSE3056 | GEO
Project description:In this study, we aim to present a global transcriptome analysis of medicinal/spice plant, Crocus sativus. We generated about 206 million high-quality reads from five tissues (corm, leaf, Tepal, stamen and stigma) using Illumina platform. We performed an optimized de novo assembly of the reads and estimated transcript abundance in different tissue samples. The transcriptome dynamics was studied by differential gene expression analyses among tissue samples.
2016-03-04 | GSE65103 | GEO
Project description:n Arabidopsis thaliana, the non-pollinated floral stigma degenerates about 3 to 4 days after flower opening. This data set describes the changes in the stigma transcriptome profiles during this senescence process. Three timepoints cover the young (TP1), the mature (TP2), and the senescent (TP3) stigma.
2018-05-01 | E-MTAB-6279 | biostudies-arrayexpress
Project description:The goal of this project is to compare the primary metabolite profile in different tissue types of the model plant Arabidopsis thaliana. Specifically, plants were grown hydroponically under the long-day (16hr light/day) condition at 21C. Tissue samples, including leaves, inflorescences, and roots were harvest 4 1/2 weeks post sowing. Untargeted primary metabolites profiling was carried out using GCTOF.
2021-12-09 | ST002012 | MetabolomicsWorkbench
Project description:In many plant species, flower stigma secretions are important in early stages of sexual reproduction. Previous chemical analysis and proteomic characterization of these exudates provided insights into their biological function. Nevertheless, the presence of nucleic acids in the stigma exudates has not been previously reported. Here we studied the stigma exudates of Pyrus communis, Pyrus pyrifolia and Pyrus syriaca, and showed them to harbor extracellular RNAs of various sizes. RNA sequencing revealed, for the first time, the presence of known Rosaceae mature micro-RNAs (miRs), also abundant in the stigma source tissue. Predicted targets of the exudate miRs in the Arabidopsis thaliana genome include genes involved in various biological processes. Several of these genes are pollen transcribed, suggesting possible involvement of exudate miRs in transcriptional regulation of the pollen. Moreover, extracellular miRs can potentially act across kingdoms and target genes of stigma interacting organisms/microorganisms, thus opening novel applicative avenues in HortSciences.
2023-11-15 | GSE225720 | GEO
Project description:Cellular differentiation is associated with changes in transcript populations. Accurate quantification of transcriptomes during development can thus provide global insights into differentiation processes including the fundamental specification and differentiation events operating during plant embryogenesis. However, multiple technical challenges have limited the ability to obtain high quality early embryonic transcriptomes, namely the low amount of RNA obtainable and contamination from surrounding endosperm and seed-coat tissues. We compared the performance of three low-input mRNA sequencing (mRNA-seq) library preparation kits on 0.1 to 5 nanograms (ng) of total RNA isolated from Arabidopsis thaliana (Arabidopsis) embryos and identified a low-cost method with superior performance. This mRNA-seq method was then used to profile the transcriptomes of Arabidopsis embryos across eight developmental stages. By comprehensively comparing embryonic and post-embryonic transcriptomes, we found that embryonic transcriptomes do not resemble any other plant tissue we analyzed. Moreover, transcriptome clustering analyses revealed the presence of four distinct phases of embryogenesis which are enriched in specific biological processes. We also compared zygotic embryo transcriptomes with publicly available somatic embryo transcriptomes. Strikingly, we found little resemblance between zygotic embryos and somatic embryos derived from late-staged zygotic embryos suggesting that somatic and zygotic embryo transcriptomes are distinct from each other. In addition to the biological insights gained from our systematic characterization of the Arabidopsis embryonic transcriptome, we provide a data-rich resource for the community to explore.
2018-12-21 | GSE121236 | GEO
Project description:Arabidopsis thaliana and Arabidopsis lyrata are two closely related Brassicaceae species, which are used as models for plant comparative biology. They differ by lifestyle, predominant mating strategy, ecological niches and genome organization. In order to explore molecular basis of specific traits, we performed RNA-sequencing of vegetative rosettes from both species. Additionally, we sequenced apical meristems and inflorescences of A. lyrata that allow for intra-specific transcriptome comparison in several major developmental stages. Please view also related dataset GSE69077 (RNA-sequencing of heat stressed A. lyrata and A. thaliana plants).
2015-08-01 | GSE69222 | GEO
Project description:Trichomes of Arabidopsis thaliana have been broadly used to study cell development, cell differentiation and cell wall biogenesis. In this context, the exposed position, extraordinary size and characteristic morphology of trichomes featured particularly the exploration of trichome mutant phenotypes. However, trichome-specific biochemical or -omics analyses require a proper separation of trichomes from residual plant tissue. Thus, different strategies were proposed in the past for trichome isolation, which mostly rely on harsh conditions. To improve trichome-leaf separation, we revised a previously proposed method for isolating A. thaliana trichomes by optimizing the mechanical and biochemical specifications for trichome release. Furthermore, we introduced a density gradient centrifugation step to remove residual plant debris. We found that prolonged, yet mild seedling agitation increases the overall trichome yield by about 62% compared to the original protocol. We noticed that subsequent density gradient centrifugation further visually enhances trichome purity, which could be advantageous for downstream analyses. Histochemical and biochemical investigation of trichome cell wall composition indicated that gentle agitation during trichome release largely preserves trichome integrity. We used enriched and purified trichomes for proteomic analysis and present a reference data set of trichome-resident and -enriched proteins.
2022-01-13 | PXD028808 | Pride
Project description:The circadian clock is comprised of proteins that form negative feedback loops, which regulate the timing of global gene expression in a coordinated 24 hour cycle. As a result, the plant circadian clock is responsible for regulating numerous physiological processes central to growth and survival. To date, most plant circadian clock studies have relied on diurnal transcriptome changes to elucidate molecular connections between the circadian clock and observable phenotypes in wild-type plants. Here, we have combined high-throughput RNA-sequencing and mass spectrometry to comparatively characterize the lhycca1, prr7prr9, gi and toc1 circadian clock mutant rosette transcriptome and proteome at the end-of-day and end-of-night.
2018-01-02 | PXD004763 | Pride