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Genes upregulated in dcr-1(-/-) adult animals by at least 1.5 fold and P < 0.01, as determined by a multisample t-test and the Benjamini and Hochberg false discovery rate correction. |
Statistical t-test: P < 0.05 for rde-4(-/-) and rde-1(-/-) analyses; P < 0.01 for dcr-1(-/-) analysis with a threshold of 1.5-fold misregulation. |
WBPaper00029437:dcr-1_upregulated
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24 hours of AgNPs exposure. |
Genes downregulated more than 2 fold after 24 hours of AgNPs exposure. |
Statistical differences between the control and exposed worms were determined by a parametric t test, and a Pearson correlation test was performed for correlation analysis, using the Statistical Package for the Social Sciences (SPSS, Chicago, IL). |
WBPaper00034661:AgNPs_downregulated
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Oxidative stress. |
Genes upregulated by oxidative stress. |
Assessed by SAM (Significance Analysis of Microarray) [false discovery rate (FDR) = 11%] |
WBPaper00034757:up_by_oxidative_stress
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EtBr-exposed(maintained under normal lab light (mostly dark, in incubators) and exposed to EtBr (5ug/mL in agar).) vs UVC-exposed(exposed to 7.5 J/m2 UVC radiation 3 times, 24 h apart (48 h total).) at just prior to the second UVC dose (24h). |
Genes differentially expressed under EtBr treatment without UVC exposure vs after UVC exposure but without EtBr treatment at the -25h timepoint (just prior to the second UVC dose (24h)). |
Transcripts were defined as fold-change >1.2, p < 0.05 based on Rosetta Resolver analysis for all pairwise treatment comparisons. The fold-change refers to the second intensity over the first. |
WBPaper00041939:EtBr-exposed_vs_UVC-exposed_24h
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heat shock |
Genes regulated by heat shock. |
Differences between treatments were visualized by principal component analysis (PCA) plotting with MeV/TM4. Data were initially filtered out for missing values and then subjected to a CLEAR test that combines differential expression and variability using the GEPAS web server at http://www.gepas.org. In our case, the false discovery rate was set to a stringent level of 5 per cent. |
WBPaper00035227:heat_shock_regulated
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Genes that showed increased expression in bar-1(ga80) animal comparing to in N2. |
All statistical analyses were performed using the statistical programming language R (version 2.13.1 x 64). A linear model was used to determine the effect and significance of the genotype on the expression levels (probe intensity + genotype + error). Using permutations of the original data in the same linear model, authors determined thresholds adjusted for multiple testing (FDR 0.05: -log10(p) > 2; FDR 0.01: -log10(p) > 3). To correct for the developmental difference between bar-1(ga80) and N2 authors used the developmental gene expression data from Snoek et al. (2014) together with the gene expression data generated for this study (bar-1(ga80) vs. N2) in one linear model (probe intensity, sample age + genotype + error). The intensities were corrected for batch effect and for sample age authors used an age of 44 hours for the bar-1(ga80) samples (as estimated), and 48 hours for the N2 samples. |
WBPaper00045257:bar-1(ga80)_upregulated
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Genes up regulated in crh-1(nn3315) comparing to in N2. |
To identify genes that were significantly differentially expressed between each mutant and the control, linear modelling and empirical Bayes analysis was performed using the limma package. Limma computes an empirical Bayes adjustment for the t-test (moderated t-statistic), which is more robust than the standard two-sample t-test comparisons. To correct for multiple testing, Benjamin and Hochbergs method to control for false discovery rate was used. Genes with an adjusted P value of 0.05 or smaller and a fold-change in expression larger than twofold were considered differentially expressed. |
WBPaper00038172:crh-1null_up_regulated
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Bacteria infection: Bacillus thurigiensis DB27 |
Caenorhabditis elegans Genes with expression levels changed significantly after treatment of Bacillus thurigiensis DB27. |
Differential expression were calculated by empirical eBayes method using eBayes function. P_value <= 0.01 and log2 fold change > 1 were used to call differentially expressed genes in all datasets. |
WBPaper00041606:CE_B.thuringiensis-DB27_regulated
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Genes that showed significantly changed expression in daf-16(mgDF50) starved vs N2 starved animals at L1 larva. |
Normalized log2 GCRMA values were used to assess significance of expression changes with the LIMMA/GCRMA empirical Bayes test. A threshold for significance at a q-value (FDR) of less than 0.05 was used to determine if a gene is differentially expressed. |
WBPaper00053236:daf-16(mgDF50)_regulated_Starved
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Transcripts that showed significantly decreased expression after 24 hour exposure to 20umol/l Triclosan at L4 larva stage. |
Fold change > 2, p-value < 0.05. |
WBPaper00051387:Triclosan_downregulated
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Genes that showed significantly decreased expression after exposure to adsorbable organic bromine compounds (AOBr) contained in M. aeruginosa batch culture. |
Differentially expressed genes (DEGs) were identified with a random variance t-test and a significance analysis of microarrays (SAM) test. Genes were considered statistically significant if their p-value was less than 0.05, the false discovery rate less than 0.3, and the fold change compared to control at least <= 0.67 or >=1.5. |
WBPaper00046853:AOBr_M.aeruginosa-batch-culture_downregulated
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Genes upregulated by alg-1(-). |
t-statistic difference of > 2.5 with p < 0.01. |
WBPaper00035588:alg-1(-)_upregulated
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Transcripts that showed significantly increased expression in mrps-5(RNAi) comparing to in control animals. |
Fold change > 4, p-value < 0.01 |
WBPaper00056330:mrps-5(RNAi)_upregulated
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Bacteria diet: Comamonas sp. DA1877 |
Genes upregulated on Comamonas DA1877 relative to E. coli OP50, Gravid adult stage |
Moderated T statistics in Limma was used to calculate significance. Significance was determined using an adjusted p value. Changes in gene expression that were 2-fold (p < 0.001) or greater were considered significantly changed. |
WBPaper00042258:DA1877_upregulated_GravidAdult
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Genes that significantly decreased expression in dnj-14(ok237) and dnj-14(tm3223) when comparing to either N2 or CZ1200 juIs76 [unc-25p::GFP; lin-15(+)] |
The significance test of the estimated logFC (log2 Fold Change) for each contrast was performed by the empirical Bayes function packed in limma and p-values were adjusted using the Benjamini and Hochberg FDR control approach to deal with the effect of multiple tests. Both 5% and 1% false discovery rate (FDR) datasets were analysed in order to ensure the highest confidence in the observed enriched genes and pathways whist ensuring there was no loss of representation of DEGs at higher stringency levels. At 5% FDR, 3569 DEGs were revealed compared to N2 (Bristol) and 506 DEGs compared to CZ1200. Further analysis of these data identified 50 Up-regulated and 240 down-regulated DEGs which were common to both control strain datasets. |
WBPaper00048567:dnj-14_downregulated
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fasting |
Genes upregulated by fasting anytime between 9 hour to 12 hour time course in N2 worms. |
Hierarchical clustering analysis was done with squared Euclidean as the distance metric and average linkage as the cluster method by using GeneSpring GX. |
WBPaper00041960:N2_fasting_upregulated_9hto12h
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fasting |
Genes upregulated by fasting anytime during the 48 hour time course in N2 worms. |
Hierarchical clustering analysis was done with squared Euclidean as the distance metric and average linkage as the cluster method by using GeneSpring GX. |
WBPaper00041960:N2_fasting_upregulated_anytime
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Genes with a >= 10-fold decrease in expression in Day 15 adults relative to expression levels in Day 6 adults are listed. |
To determine age-dependent changes in gene expression the mean log ratio of gene expression at two different points during aging was calculated, and a 2-tailed unpaired Student t test was used to identify genes with statistically significant (p-value <= 0.05) changes in expression levels as a function of age. |
WBPaper00038462:aging_downregulated
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Treatment with 0.2mM of HuminFeed Hydroquinone until young adult stage (3 days). |
Gene significantly up-regulated by treatment with 0.2mM of HuminFeed Hydroquinone until young adult stage (3 days), with a minimum fold change in gene expression of 1.25. |
For selection of DEGs, an unpaired t -test was performed followed by a significance analysis of microarray (SAM) test including a calculation that estimates the false discovery rate (FDR). FDR, reducing on the one hand type I errors for null associations, was set to a non-stringent level of <12.5%, mainly to guard from an increase of type II error and also based on findings by Levine et al. (2011), which described 12.5% as most acceptable optimum level of FDR, representing the 90th percentile of the normal distribution curve. DEGs exceeding a fold change of 1.25 were further analyzed with respect to their functional clustering. This fold-cut-off was chosen to allow an interpretation that is biologically meaningful, akin to the notion that data of sound technical and experimental quality which returns strong, statistically significant, absolute signal intensities is sufficiently robust to justify a fold-cut-off of >1.2. This analysis was conducted using the functional annotation clustering tool of the Database for Annotation, Visualization, and Integrated Discovery (DAVID; Huang et al., 2007). |
WBPaper00041002:HQ_3d_0.2mM_Up
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Treatment with 2.0mM of HuminFeed Hydroquinone until young adult stage (3 days). |
Gene significantly up-regulated by treatment with 2.0mM of HuminFeed Hydroquinone until young adult stage (3 days), with a minimum fold change in gene expression of 1.25. |
For selection of DEGs, an unpaired t -test was performed followed by a significance analysis of microarray (SAM) test including a calculation that estimates the false discovery rate (FDR). FDR, reducing on the one hand type I errors for null associations, was set to a non-stringent level of <12.5%, mainly to guard from an increase of type II error and also based on findings by Levine et al. (2011), which described 12.5% as most acceptable optimum level of FDR, representing the 90th percentile of the normal distribution curve. DEGs exceeding a fold change of 1.25 were further analyzed with respect to their functional clustering. This fold-cut-off was chosen to allow an interpretation that is biologically meaningful, akin to the notion that data of sound technical and experimental quality which returns strong, statistically significant, absolute signal intensities is sufficiently robust to justify a fold-cut-off of >1.2. This analysis was conducted using the functional annotation clustering tool of the Database for Annotation, Visualization, and Integrated Discovery (DAVID; Huang et al., 2007). |
WBPaper00041002:HQ_3d_2.0mM_Up
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UV irradiation: 10 mJ per square cm. |
Genes with significantly increased expression in xpa-1(ok698) animals after treated with 10mJ per square cm UV and harvested 6 hours later. |
Differentially expressed genes were determined by ANOVA analysis using the Partek software package. |
WBPaper00047070:xpa-1_UV_upregulated
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Genes up regulated in tax-6(ok2065) comparing to in N2. |
To identify genes that were significantly differentially expressed between each mutant and the control, linear modelling and empirical Bayes analysis was performed using the limma package. Limma computes an empirical Bayes adjustment for the t-test (moderated t-statistic), which is more robust than the standard two-sample t-test comparisons. To correct for multiple testing, Benjamin and Hochbergs method to control for false discovery rate was used. Genes with an adjusted P value of 0.05 or smaller and a fold-change in expression larger than twofold were considered differentially expressed. |
WBPaper00038172:tax-6null_up_regulated
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Genes up regulated in the absence of TDP-1, when the threshold was set at a fold change (FC) of 1.2. |
The management and statistical analysis of the microarray data were performed using the Partek Genomic Suite (Partek, Missouri) and Spotfire DecisionSite software (TIBCO, California). |
WBPaper00040603:tdp-1(lf)_up_vs_N2_FC_1.2
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Bacteria infection: Pseudomonas aeruginosa PA14 |
Genes upregulated in worms grown on P. aeruginosa PA14 as compared to worms grown on OP50 for 4 hours by at least 2 fold and P < 0.01, as determined by a t-test. |
At least 2 fold and P < 0.01, as determined by a t-test. |
WBPaper00028789:PA14_vs_OP50_upregulated_4hr
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Hypoxia treatment 0.5% oxygen for 2 hours. |
Transcriptst that showed significantly increased expression by short-term hypoxia in N2. |
Differentially expressed pro-besets were defined as q-value <= 0.05 and fold change >=1.6. |
WBPaper00066920:hypoxia_upregulated
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Bacteria infection: Pseudomonas aeruginosa PA14 |
Genes upregulated in worms grown on wild-type P. aeruginosa PA14 as compared to worms grown on an isogenic PA14 mutant gacA for 4 hours by at least 2 fold and P < 0.01, as determined by a t-test. |
At least 2 fold and P < 0.01, as determined by a t-test. |
WBPaper00028789:PA14_vs_gacA_upregulated_4hr
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Bacteria infection: Pseudomonas aeruginosa PA14 |
Genes upregulated in worms grown on P. aeruginosa PA14 as compared to worms grown on OP50 for 8 hours by at least 2 fold and P < 0.01, as determined by a t-test. |
At least 2 fold and P < 0.01, as determined by a t-test. |
WBPaper00028789:PA14_vs_OP50_upregulated_8hr
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UV irradiation: 60 mJ per square cm. |
DAF-16-dependent genes as being significantly induced (FC > 1.5; P < 0.01) following UV treatment in daf-2 mutants and more strongly induced following UV treatment in daf-2 versus daf-2;daf-16, daf-2 versus N2, and N2 versus daf-16. |
Differentially expressed genes were determined by ANOVA analysis using the Partek software package. |
WBPaper00047070:DAF-16-dependent_UV_response
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Bacteria infection: Pseudomonas aeruginosa PA14 |
Genes upregulated in worms grown on wild-type P. aeruginosa PA14 as compared to worms grown on an isogenic PA14 mutant gacA for 8 hours by at least 2 fold and P < 0.01, as determined by a t-test. |
At least 2 fold and P < 0.01, as determined by a t-test. |
WBPaper00028789:PA14_vs_gacA_upregulated_8hr
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Bacteria: C.neoformans strain H99 |
Transcripts that showed significantly increased expression after infection by C. neoformans H99. |
Ballgown was used to calculate differential expression of genes using FPKM data and to generate tables with fold change and P values. Genes were shortlisted with a cutoff of 2-fold change and P values of less than 0.05. |
WBPaper00059754:C.neoformans_H99_upregulated
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