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Genes with expression level regulated by genotype (N2 vs CB4856) and age at L3 larva and Late reproduction stage (96 hours at 24 centigrade). |
For model 2, authors used 100 permutations to estimate the FDR threshold. Per permutation, genotypes and ages were independently randomly distributed, keeping the among-gene structure intact. Then for each spot (23,232) on the array, model 2 was tested. The obtained P-values were used to estimate a threshold for each of the explanatory factors. Authors also used a genome-wide threshold of -log10 P-value = 2, which resembles an FDR of 0.072 and 0.060 for marker and the interaction age-marker for the developing worms and FDR of 0.050 and 0.065 for marker and age-marker for the aging worms. For the physiological age effect, authors used a log10 P-value = 8 in developing worms (0.012 FDR) and -log10 P-value = 6 (0.032 FDR). |
WBPaper00040858:eQTL_age_regulated_developing
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Genes with expression level regulated by genotype (N2 vs CB4856) at L3 larva and Late reproduction stage (96 hours at 24 centigrade). |
For model 2, authors used 100 permutations to estimate the FDR threshold. Per permutation, genotypes and ages were independently randomly distributed, keeping the among-gene structure intact. Then for each spot (23,232) on the array, model 2 was tested. The obtained P-values were used to estimate a threshold for each of the explanatory factors. Authors also used a genome-wide threshold of -log10 P-value = 2, which resembles an FDR of 0.072 and 0.060 for marker and the interaction age-marker for the developing worms and FDR of 0.050 and 0.065 for marker and age-marker for the aging worms. For the physiological age effect, authors used a log10 P-value = 8 in developing worms (0.012 FDR) and -log10 P-value = 6 (0.032 FDR). |
WBPaper00040858:eQTL_regulated_developing
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Genes with significantly increased expression in eat-2(ad465) treated with 2% DMSO for 72 hours, comparing to in N2 treated with 2% DMSO for 72 hours. |
Analysis of gene expression data was carried out with the Affymetrix Transcriptome Analysis Console. Data preprocessing (using RMA normalization) and QC metrics were performed using Affymetrix Expression Console TM and manually inspected afterwards. Expression analysis was carried out for each two pairwise conditions. FDR statistical correction for multiple testing resulted in a slightly lower number of DEGs in most cases. P-value < 0.05 and fold change > 2.0 were used to determine differentially expressed genes. |
WBPaper00048989:eat-2(ad465)_upregulated_in-DMSO
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Genes expressed in N2. |
Expressed transcripts were identified on the basis of a Present call in 3 out of 4 N2 experiments as determined by Affymetrix MAS 5.0. |
WBPaper00025141:N2_Expressed_Genes
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control(maintained under normal lab light (mostly dark, in incubators).) vs EtBr-exposed(maintained under normal lab light (mostly dark, in incubators) and exposed to EtBr (5ug/mL in agar).) at just prior to the second UVC dose (24h). |
Genes differentially expressed in control vs under EtBr treatment without UVC exposure, at the -25h timepoint. |
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:control_vs_EtBr-exposed_24h
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Genes with increased expression in tbx-2(bx59) comparing to N2. |
The limma package was used to calculate differential expression using the limma linear model fit, eBayes smoothing of standard errors, and Benjamini-hochberg(Bh) multiple test correction with a false discovery rate of 5%. |
WBPaper00042274:tbx-2(bx59)_upregulated
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Genes with expression level regulated by genotype (N2 vs CB4856) at Old adults stage (214 hours at 24 centigrade). |
Authors permuted transcript values and used a genome-wide threshold of log10 P-value = 2, which resembles a false discovery rate (FDR) of 0.0136. |
WBPaper00040858:eQTL_regulated_old
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Genome-wide analysis of developmental and sex-regulated gene expression profile. |
self-organizing map |
cgc4489_group_22
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Transcripts that showed significantly increased expression in sdc-3(ubs20);dpy-26(ubs4) comparing to in control animals. |
DESeq2 v.1.34, fold change > 2, FDR < 0.05. |
WBPaper00067078:sdc-3(ubs20);dpy-26(ubs4)_upregulated
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Genes from eat-2(ad465) animals with significantly decreased expression after 72 hours of treatment on growth media with 10uM rapamycin in 2% DMSO. |
Analysis of gene expression data was carried out with the Affymetrix Transcriptome Analysis Console. Data preprocessing (using RMA normalization) and QC metrics were performed using Affymetrix Expression Console TM and manually inspected afterwards. Expression analysis was carried out for each two pairwise conditions. FDR statistical correction for multiple testing resulted in a slightly lower number of DEGs in most cases. P-value < 0.05 and fold change > 2.0 were used to determine differentially expressed genes. |
WBPaper00048989:eat-2(ad465)_rapamycin_downregulated
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Genes that showed significantly increased expression in daf-19(m86);daf-12(sa204) comparing to in daf-12(sa204), at 3-fold embryo stage. |
BRB Array Tools were used to identify genes with statistically significant variation in expression. The probability threshold was set at a maximum of 0.05 (p-value <= 0.05) for genes to be considered statistically differentially expressed in wild-type and mutant populations. Genes with a signal variation of 1.5-fold or greater were selected for subsequent experiments. To reduce false discoveries, a class comparison test was conducted using a multivariate per mutation test with a confidence level of 97% (L1 analysis) and 90% (adults). |
WBPaper00053550:daf-19(m86)_upregulated_3-fold-embryo
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Candidate daf-19 up regulated genes with a statistically significant signal variation of 1.5-fold or greater. These were identified using a class comparisons tool from BRB Array Tools. |
BRB Array Tools (version 3.3) was subsequently used to identify genes with a statistically significant variation in expression when comparing between the two classes defined in this study. The probability threshold was set at a maximum of 0.05 (p-value <= 0.05) for genes to be considered statistically different. Genes with a signal variation of 1.5-fold or greater were selectively identified for use in all subsequent experiments. To reduce the chances of false discoveries, a class comparison test was conducted using a multivariate permutation test with the confidence level of 97%. |
WBPaper00039866:ClassComp_daf-19_upregulated
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Expression Pattern Group H, enriched for genes involved in embryonic development. These patterns have in common that they all have genes of which the expression goes up after the juvenile stage. The expression of the genes in these patterns remains high or even goes up after reproduction. |
The significance (P 0.0001) of the relative age (time) was used to determine if a gene was differentially expressed between the three age (time) groups. The effect of this factor explaining gene expression differences was used to determine if the expression went up or down during the two age/time periods (t1 - t2 and t2 -t3). Authors used a permutation approach to determine the thresholds for the different mapping strategies. For each of the used models for eQTL mapping, authors used 23,000 permutations. For each permutation, authors randomly picked a spot; each spot could only be picked once. The gene expression and relative lifespan values were than randomly distributed over the RILs (and time points) and used for mapping. In this way, authors obtained a threshold for each of the explaining factors. For the single time points, authors used a FDR of 0.01 to adjust for multiple testing. The genome-wide threshold for this FDR is -log10 P = 3.8 for each of the three time points. For the combined models (t1 to t2 and t2 to t3), authors used a genome-wide threshold of -log10 P = 4, which resembles an FDR of 0.006, 0.001, and 0.006 for marker, age, and the interaction between marker and age, respectively. To determine the threshold for the single gene examples, authors used 1000 permutations as in the genome-wide threshold. The difference is that they use the gene under study in all of the permutations. The P-values for the gene specific thresholds were determined at FDR = 0.05. |
WBPaper00036286:Pattern_H
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Transcripts that showed significantly increased expression in hsf-1(RNAi) comparing to in wild type animals injected with vector. |
Differential mRNA expression using DESeq2. mRNAs with a FDR < 0.05 and fold change > 2 considered differentially expressed. |
WBPaper00066232:hsf-1(RNAi)_upregulated_WT
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Transcripts that showed significantly increased expression in hsf-1(RNAi) comparing to in ash-2 animals injected with vector. |
Differential mRNA expression using DESeq2. mRNAs with a FDR < 0.05 and fold change > 2 considered differentially expressed. |
WBPaper00066232:hsf-1(RNAi)_upregulated_ash-2
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Genes that showed higher expression level in ASER than in ASEL neuron by mRNA tagging. |
Intensities of spot features annotated as Bad or Not Found in the .gpr files were set to 1 to be removed from further analysis, and all of the six processed .gpr data were converted to .mev file with TIGR ExpressConverter ver. 1.7. The .mev files were processed with TIGR MIDAS ver. 2.19 with parameters set as follows: one bad channel tolerance policy as generous, with both of channel flag checked and background unchecked. The data were normalized by lowess normalization with default settings and with block and slide SD regularization. Authors then calculated log2(ASER/ASEL) ratios for each gene on the microarray. For the two pairs of dye-swapped repeats, authors calculated the mean log2(ASER/ASEL) of each repeat, so that up to four log2(ASER/ASEL) values per spot were obtained. Authors then calculated the percentile rank for each gene. Each gene spot detected more than once (18 847 spots) were subjected to MannWhitneys U test to assess whether its percentile rank values are significantly higher compared to the rest of the genes detected in the same experiments. Resulting significance levels are shown by P-values. From the P-values, false discovery rate (FDR) was further calculated by the Benjamini and Hochberg method. Statistical analyses were done by using R software version 2.9. |
WBPaper00035424:ASER_up
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Transcripts that showed significantly increased expression in dpy-26(ubs4) comparing to in control animals. |
DESeq2 v.1.34, fold change > 2, FDR < 0.05. |
WBPaper00067078:dpy-26(ubs4)_upregulated
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