Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

42 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Microarray on Caenorhabditis elegans N2 and CB4856 infected with Orsay virus

ABSTRACT: This experiment investigates the gene expression differences upon Orsay virus infection in the Caenorhabdits elegans strains N2 and CB4856. Assays measuring viral load found that the N2 strain displays higher viral loads upon infection than the CB4856 strain. The goal of the experiment was to identify gene-expression differences that could explain the differences in viral load. We (mock-)infected 26h-old C. elegans populations with Orsay virus and took samples after 30h of infection. For each treatment-strain combination 8 samples were collected. Thereafter RNA was isolated, labelled, and hybridized on microarray.

INSTRUMENT(S): Maxwell 16 Instrument, Agilent High resolution C scanner

ORGANISM(S): Caenorhabditis elegans

SUBMITTER: Mark Sterken

PROVIDER: E-MTAB-7574 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Microarray on an infection time-series of Orsay virus in three Caenorhabditis elegans genotypes

Project description:This experiment investigates the temporal dynamics in gene expression upon Orsay virus infection in the nematode Ceanorhabditis elegans. Three different strains were infected: JU1580, N2, and CB4856. Of these, JU1580 is highly susceptible, N2 moderately susceptible, and CB4856 the most resistant strain. The goal of the experiment was to identify genes that show different expression dynamics over the time-course of the infection. We (mock-)infected 40h-old C. elegans populations with Orsay virus and took samples over a 32-hour spanning time-course. For each treatment-strain combination 12 samples were collected. Thereafter RNA was isolated, labelled, and hybridized on microarray. The gene-expression dynamics of previously identified genes (e.g. from literature and from a highly replicated N2 versus CB4856 experiment) were analyzed.

2020-07-14 | E-MTAB-7573 | biostudies-arrayexpress

Microarray on mock-treated or Orsay virus infected males and hermaphrodites of Caenorhabditis elegans

Project description:This experiment investigates changes in gene expression upon Orsay virus infection and between males and hermaphrodites in the nematode Ceanorhabditis elegans. The laboratory reference strain N2 was used. For this strain, males are less susceptible to Orsay virus infection than hermaphrodites. The goal of the experiment was to identify genes that show different expression patterns for both sexes upon Orsay virus infection. We mock-treated or infected 48h-old C. elegans populations with Orsay virus and took samples 30-hours after infection. For each treatment-sex combination 8 samples were collected. Thereafter RNA was isolated, labelled, and hybridized on microarray. The gene-expression dynamics of previously identified genes (e.g. from literature and from a highly replicated N2 versus CB4856 experiment) were analyzed.

2020-09-13 | E-MTAB-9561 | biostudies-arrayexpress

Gene expression effects in Caenorhabditis elegans strains of feeding on Erwinia rhapontici or Escherichia coli

Project description:Diet can have a strong impact on development, to test this effect the strains N2, CB4856, three strains from Orsay (JU1581, JU1944, and JU1949), and three strains from Santeuil (JU1921, JU1930, and JU1932) were grown on two different food-sources. These sources were the standard lab food, Escherichia coli OP50, and the Gram-negative plant pathogen Erwinia rhapontici. The effect of these bacteria on development could also be measured by the start of reproduction, which was delayed while feeding on E. coli. To measure the transcriptional effects, age-synchronized strains were grown for 48 hours at 20 degrees Celsius. The impact of food-source on gene expression was determined by a transcriptional ruler based on the strain N2 (E-MTAB-7019).

2019-07-12 | E-MTAB-8129 | biostudies-arrayexpress

Microarray of C. elegans wild types N2 and CB4856 after Orsay virus infection and heat-shock treatment.

Project description:This explorative study investigated the transcriptional response of C. elegans wild types N2 and CB4856 after Orsay virus infection and Heat shock (n=1). Each strain had a sample that was heat-shocked and infected, one that was heat-shocked and mock-infected, one that was only infected and one that only underwent a mock infection. Age synchronized worms were treated separately according to different treatments mentioned before. After flash freezing, RNA was isolated, labeled and hybridized on oligo microarray (Agilent) slides.

2021-03-08 | E-MTAB-10214 | biostudies-arrayexpress

Gene expression of 47 Caenorhabditis elegans strains from Orsay and Santeuil

Project description:This study investigated the role of local genetic variation on gene expression. To this end, gene expression variation between strains isolated from two locations (Orsay and Santeuil) was investigated by microarray. As an outgroup the N2, CB4856, WN2001, WN2002, WN2003, JU314 and JU396 were used. Age-synchronized strains were grown for 47 hours at 20 degrees Celsius, where after strains were sampled and RNA was isolated. Labelled cRNA was hybridized to microarray to assess the impact of local genetic variation on gene expression. DNA hybridization complementing this study can be found in E-MTAB-8126.

2019-07-12 | E-MTAB-8132 | biostudies-arrayexpress

Small RNA seq on C. elegans males and hermaphrodites that were either mock treated or exposed to the OrV

Project description:In this experiment we exposed L4 males and hermaphrodites to mock (M9) or Orsay virus for one hour in liquid. Subsequently, nematodes were collected 30 hours after exposure. The small RNAs were isolated and sequenced.

2021-07-01 | E-MTAB-10642 | biostudies-arrayexpress

DNA hybridization of 48 Caenorhabditis elegans strains from Orsay and Santeuil

Project description:Genetic variation between strains isolated from two locations (Orsay and Santeuil) was investigated by differential hybridization to microarrays. As an outgroup the N2, CB4856, WN2001, WN2002, WN2003, JU314 and JU396 were used. DNA was isolated from isogenic populations.

2019-07-12 | E-MTAB-8126 | biostudies-arrayexpress

Gene expression profiling in control, heat-shock, and recovery treatment in an introgression line population of Caenorhabditis elegans L4 larvae

Project description:This experiment investigates the genetic architecture of gene expression (eQTL) in three different treatments in an N2xCB4856 introgression line population of Caenorhabditis elegans. The goal is to compare the effect of small CB4856 introgressions in an N2 genetic background versus a previously conducted experiment using recombinant inbred lines (RILs) derived from the same parental strains. We exposed ILs to a control (56 ILs), heat-stress (56 ILs), and recovery treatment (55 ILs). Additionally, also both parental strains, N2 and CB4856 were exposed to these three treatments (in at least 3 replicas per treatment). More specifically, these three conditions can be characterized as: (i) the control treatment was grown for 48 hours at 20C, (ii) the heat-stress treatment was grown for 46 hours at 20C followed by 2 hours at 35C, and (iii) the recovery treatment was grown for 46 hours at 20C, followed by 2 hours at 35C and thereafter 2 hours at 20C. Thereafter RNA was isolated, labelled and hybridized on microarray. The gene expression profiles were used for comparison versus findings in the RIL population (E-MTAB-5779).

2019-05-29 | E-MTAB-7424 | biostudies-arrayexpress

Time series of gene expression profiles from C. elegans exposed to heat-stress and during subsequent recovery

Project description:This data set provides insight into the temporal dynamics of gene expression changes during heat-stress (at 35C) and during subsequent recovery (at 20C) in Caenorhabditis elegans. Age synchronized C. elegans CB4856 hermaphrodite populations were exposed to heat stress (35C) for 0h, 0.5h, 1h, 2h, 4h, and 6h. A recovery time-series was created by using age-synchronized N2 populations exposed to heat stress (35C) for 2 hours with a subsequent recovery period of 0.5h, 1h, 1.5h, 2h, 4h, and 6h at 20C. The samples were collected at the indicated time-points during heat stress or recovery. Gene expression profiles were created using microarray technology. This data set is an extension of the data provided under accession number E-MTAB-5753 (i.e. time series describing the gene expression dynamics during heat stress of N2).

2019-09-30 | E-MTAB-7007 | biostudies-arrayexpress

Array-based cross-species hybridization between genera of Rhabditidae (Nematoda)

Project description:The objective of this work was to determine the effectiveness of cross-hybridization of gDNA from five native soil nematodes to an Affymetrix Caenorhabditis elegans tiling array. Cross-hybridization experiments using C. briggsae, for which genome information is available, allowed hybridisation intensities to be correlated with known sequence differences. Initial analysis of data by conventional array-based Comparative Genomic Hybridization (aCGH) techniques at the chip level lead to misleading results due to an artefact from the combination of scaling, bandwidth smoothing, and differential GC content in exon and intron regions. To circumvent this artefact, individual probes were instead normalized and centered by adjusting for probe-specific thermodynamic binding affinity. However, cross-hybridization of C. briggsae DNA revealed that the resultant probe intensities alone were still uncorrelated to sequence similarity below 90% identity. Below 90% similarity, all probes hybridize uniformly poorly, and above 90% similarity the hybridization differences are not large enough to detect over background, therefore, no 'threshold' ratio of hybridization intensity was successful at identifying probes with similarity to the heterologous genome. In light of the observations described here, we suggest that the criteria for replication and verification of gene expression profiles generated from cross-species microarray hybridizations be more stringent than typically adopted for con-specific hybridizations. Genomic DNA from Caenorhabditis elegans N2 (Bristol), C. elegans CB4856 (Hawaiian), C. briggsae AF16, Oscheius tipulae KS585, Oscheius FVV-2 KS555, Mesorhabditis sp. KS587, Acrobeloides sp. KS586, and Chiloplacus sp. KS584 were hybridized onto C. elegans Affymetrix tiling array (two replicate chips were performed for each species).

2010-08-17 | E-GEOD-23667 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data