Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The SUCAST catalogue

ABSTRACT: A collection of 237,000 expressed sequence tags generated by the Sugarcane EST sequencing project (SUCEST) was analyzed in search of signal transduction components. The SUCAST (Sugarcane Signal Transduction) Catalogue contains over 3500 components, with around 2900 involved in several aspects of cell signaling and transcription. Sequence comparisons and conserved protein domain analysis revealed 477 receptors, 510 protein kinases, 107 protein phosphatases, a large number of small GTPases, G-proteins, members of the calcium and inositol metabolism, and other signal transduction-related proteins. Over 600 transcription factors were also indexed. Moreover, 437 genes with no matches in the public databases and 111 genes of unknown function were catalogued. Several of the SUCEST cDNA libraries were derived from plants submitted to abiotic stresses or infected with endophytic nitrogen fixing bacteria and stress and pathogen response-related genes were also annotated. The abundance of transcripts among six different sugarcane tissues (flowers, roots, leaves, lateral buds, 1st and 4th internodes) was evaluated using microarrays and expression profile clustering. We identified 216 genes that are significantly more abundant in one of the tissues analyzed. A subset of the data was validated by real-time PCR. Additionally, genes with similar expression levels among different tissues were identified. The characterization of these elements and their promoters can aid in the development of tools for the genetic manipulation of this plant species and other economically important grasses. Keywords: other

ORGANISM(S): Saccharum officinarum

PROVIDER: GSE1702 | GEO | 2005/08/24

SECONDARY ACCESSION(S): PRJNA90637

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Expression Profile of Signal Transduction Components in a Sugarcane Population Segregated for Sugar Content

Project description:Sucrose is the major product of photosynthesis in many higher plants. It is transported from the source tissue through the phloem to various sink tissues to support plant growth, development and reproduction. Knowledge of the signal transduction pathways involved in carbohydrate metabolism is limited. Genes involved in the regulation of sucrose synthesis and accumulation could be used as tools in the development of genetically manipulated plants with higher sucrose content or aid in breeding programs as molecular markers. Using the SUCEST (Sugarcane EST) database information and a microarray approach, the expression profiles of 1920 sugarcane (Saccharum spp.) genes encoding signal transduction elements, transcription factors and stress-related proteins were analyzed. In order to assess their involvement in sucrose metabolism, the expression profiles of individuals from a sugarcane population segregated for sugar content were compared. From a population of 500 F1 individuals, the seven with the highest and the seven with the lowest sugar contents were selected, pooled and profiled using cDNA microarrays. Twenty-four genes were identified as differentially expressed. Five of them were more expressed in the plants with the highest sugar contents and 19 in the plants with the lowest sugar contents. RNA-blot hybridization was used to validate the expression profiles obtained for individuals in each group. These genes were shown to have differential expression throughout the growing season and in the different tissues. Our data supports the view that sugar levels modulate a complex signal transduction network that seems to involve responses related to stress. Keywords: Segregated population

2006-02-14 | GSE4233 | GEO

Abscisic acid effect on wild type and the abh1 mutant

Project description:Analysis of the abh1 mutant Arabidopsis plants following treatment with 50 uM abscisic acid (ABA). ABH1 encodes the large (80kDa) subunit of the nuclear mRNA cap binding complex and affects early ABA signal transduction events (Hugouvieux et al., 2001, Cell 106, 477). Keywords: stress response

2007-03-01 | GSE7112 | GEO

Sucrose accumulation regulation revealed through studies of the transcriptome and physiology in breeding populations of sugarcane

Project description:Background: Sugarcane is an important sugar and energy crop largely used for bioethanol production in the world. The development of sugarcane cultivars with high sucrose content and yield is one of the biggest challenges of breeding programs nowadays. To identify genes networks that underlie sucrose content and yield, we used a custom designed oligonucleotide array with 21,901 different probes to study the transcriptome from breeding populations of sugarcane contrasting to sucrose content and genotypes contrasting to photosynthesis rate. Results: Physiological and biochemical data reveals that the transcriptome profiles described here showed a close relationship between sucrose content and stem development. A total of 2135 genes were differentially expressed in at least one experimental hybridization. We identified genes related to carbohydrate metabolism, cell wall metabolism and signal transduction. The same oligoarrays was used to detect transcription in both sense and antisense orientation. The enriched functional category from antisense expressed genes reveals light harvesting and circadian clock as the two top categories that can be related to photosynthesis and yield in sugarcane. Conclusions: Knowledge on the mechanisms underlying carbon partitioning and its relationship with sucrose accumulation in sugarcane stems would help defines routes to increase yield. Our findings showed for instance that sucrose accumulation and yield in sugarcane may be regulated by hormone signaling pathways, light harvesting and circadian clock genes. Analysis of the expression data and gene category enrichment provided an insight into signaling pathways and transcriptional control contrasting in high brix and low brix plants as well as differing photosynthesis rates and yield.

2016-12-31 | GSE44389 | GEO

Saccharomyces cerevisiae

Project description:Ras/cAMP signal transduction, perturbations

| PRJNA92621 | ENA

Saccharum officinarum

Project description:Expression Profile of Signal Transduction Components in a Sugarcane Population Segregated for Sugar Content

| PRJNA94887 | ENA

Transcriptional profiles of drought-related genes in modulating metabolic processes in Lolium multiflorum

Project description:Drought is a major environmental stress that limits growth and development of cool-season annual grasses. Drought transcriptional profiles of resistant and susceptible lines were studied to understand the molecular mechanisms of drought tolerance in annual ryegrass (Lolium multiflorum L.). A total of 4,718 genes exhibited significant differential expression in two L. multiflorum lines. Additionally, up-regulated genes associated with drought response in the resistant lines were compared with susceptible lines. Gene ontology enrichment and pathway analyses revealed that genes partially encoding drought-responsive proteins as key regulators were significantly involved in carbon metabolism, lipid metabolism, and signal transduction. Comparable gene expression was used to identify the genes that contribute to the high drought tolerance in resistant lines of L. multiflorum.

2017-02-14 | GSE78738 | GEO

Comparative Phosphoproteome Analysis of Seedling Leaves in Brachypodium distachyon. under Different Drought Conditions

Project description:Drought stress is a major abiotic stress affecting plant growth and development. Brachypodiumdistachyon L. is a special model plant for wheat, barley, and several potential biofuel grasses. In this study, we make comparative phosphoproteome analysis of seeding leaves at the three leaf stage in Brachypodiumdistachyon L. for the different treatment conditions (6h, 24h). A total of 480 unique phosphopeptides, representing 439 phosphoproteins, were identified under drought stress. Motif-X analysis identified six motifs, such as [SP], [RxxS], [LxRxxS], [SxD], [SF] and [TP]. Molecular function and PPI analysis suggested that many proteins may take participation in signal transduction, gene expression, drought response and defense with energy metabolism and material transmembrane transport under moisture deficiency condition. Further analyses revealed that these SCPL phosphoproteins may play important roles in regulating signal transduction and material transmembrane transport to cope with the adverse environmental conditions. This study first focus on the effects of phosphorylation modification mechanisms on the growth and development of seeding leaves at different drought stresses.

2018-10-26 | PXD003522 | Pride

Transcriptome and proteome profiles of the diazotroph Nitrospirillum amazonense strain CBAmC in response to the sugarcane apoplast fluid

Project description:The diazotrophic CBAmC strain of Nitrospirillum amazonense has been reported to promote growth of sugarcane variety RB867515 when inoculated under field conditions in a consortium with four other nitrogen-fixing bacteria. The present work had the objective of accessing the influence of the sugarcane apoplast fluid from variety RB867515 on the global transcriptomic and proteomic profiles of CBAmC strain cultured in vitro. The comparative analysis between the transcriptome and proteome profiles showed strong consistency between the results of the two approaches. Data analysis revealed that expression levels of transcripts and proteins related to cell motility and signal transduction, among other functions, were strongly downregulated in the presence of the apoplast fluid. In contrast, transcripts and proteins were upregulated for functional categories including chaperones, iron homeostasis and multidrug efflux transporters. In conclusion, the results showed that the metabolic state of N. amazonense during cultivation in the presence of the apoplast fluid is directed to functions capable of supporting adaptation to the complex environment of the sugarcane apoplast.

2019-07-12 | PXD013518 | Pride

RNAi of signal transduction components in HCT116 cells

Project description:RNAi of signal transduction components in HCT116 cells

| PRJEB2536 | ENA

Lotus japonicus

Project description:Transcriptional regulation systems in symbiotic signal transduction network

| PRJDB3308 | ENA