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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 Late reproduction stage (96 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 0.0118. |
WBPaper00040858:eQTL_regulated_reproductive
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Bacteria infection: Photorhabdus luminescens |
Genes down-regulated in animals infected with Photorhabdus luminescens compared to the E. coli OP50 control after 24h of infection. |
MAANOVA and BRB-Array-Tools. |
WBPaper00030985:Photorhabdus_luminescens_downregulated
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Transcripts that showed significantly increased expression in sin-3(tm1276) comparing to in N2. |
DESeq2, fold change > 2, p-value < 0.01. |
WBPaper00061203:sin-3(tm1276)_upregulated
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Transcripts that showed significantly decreased expression in sin-3(tm1276) comparing to in N2 at early embryo when there were only 3 -5 eggs in the adult. |
DESeq2, fold change > 2, adjusted p-value < 0.01 |
WBPaper00058598:sin-3(tm1276)_downregulated
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Genes found to be regulated by low-copy overexpression of sir-2.1 with p < 0.014. |
N.A. |
WBPaper00026929:sir-2.1_overexpression_regulated
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TGF- Dauer pathway adult transcriptional targets. Results obtained by comparing the microarray results of the dauer-constitutive mutants daf-7(e1372), daf-7(m62), and daf-1(m40) with dauer-defective mutants daf-3(mgDf90), daf-5(e1386), and daf-7(e1372);daf-3(mgDf90) double mutants at the permissive temperature, 20C, on the first day of adulthood. |
SAM |
WBPaper00031040:TGF-beta_adult_downregulated
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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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Transcripts depleted in RIS neurons comparing to in all cells. |
edgeR 3.24.3, FDR < 0.01 |
WBPaper00058969:RIS_depleted
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Transcripts with significantly increased expression in isp-1(qm150) vs. N2, and in isp-1(qm150) ced-4(n1162) vs. ced-4(n1162). |
Comparisons of each genotype were compared to the wild-type using the Empirical Base (Wright & Simon) algorithm and fold changes were represented on a log2 scale. A threshold of p < 0.05 and a fold change of 1.3 (log2) was set to determine differentially expressed targets. |
WBPaper00045263:isp-1(qm150)_upregulated
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Bacteria infection: Xenorhabdus nematophila |
Caenorhabditis elegans Genes with expression levels changed significantly after treatment of Xenorhabdus nematophila. |
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_X.nematophila_regulated
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Transcripts that showed significantly increased expression in unc-30(ok613) animals at L4 larva stage, comparing to N2 animals. |
Genes exhibiting at least two-fold change were considered differentially expressed. |
WBPaper00061439:unc-30(ok613)_upregulated
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Transcripts with significantly increased expression after treatment with 0.1mM paraquat vs. control |
Comparisons of each genotype were compared to the wild-type using the Empirical Base (Wright & Simon) algorithm and fold changes were represented on a log2 scale. A threshold of p < 0.05 and a fold change of 1.3 (log2) was set to determine differentially expressed targets. |
WBPaper00045263:0.1mM-paraquat_upregulated
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Genes down 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)_down_vs_N2_FC_1.2
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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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Transcripts that showed significantly decreased expression in day 1 adult hermaphrodite comparing to in L4 larva fem-3(q20) animals. |
Fold change > 2, FDR < 0.05 |
WBPaper00064088:Day-1-adult_vs_L4_downregulated_fem-3(q20)
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Transcripts that showed significantly decreased expression in day 3 adult hermaphrodite comparing to in L4 larva fem-3(q20) animals. |
Fold change > 2, FDR < 0.05 |
WBPaper00064088:Day-3-adult_vs_L4_downregulated_fem-3(q20)
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Transcripts that showed significantly decreased expression in npr-15(tm12539) comparing to in N2 at L4 larva stage. |
Fold change > 2, FDR < 0.05. |
WBPaper00066608:npr-15(tm12539)_downregulated
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Genes down-regulated after 200 um Quercetin treatment. Fold change < 0.8. |
GCRMA |
WBPaper00040963:Q200_down
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Transcripts enriched in purified oocyte P bodies comparing to in whole oocytes. |
DESeq2, FDR < 0.05, fold change > 2. |
WBPaper00065975:P-body_vs_oocyte_enriched
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Transcripts enriched in purified oocyte P bodies comparing to in the whole animal. |
DESeq2, FDR < 0.05, fold change > 2. |
WBPaper00065975:P-body_vs_WholeAnimal_enriched
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Genes from N2 animals with significantly increased expression after 72 hours of treatment on growth media with 250uM allantoin 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:N2_allantoin_upregulated
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Genes that showed higher expression in N2 than in DR1350. |
The normalised data were analysed using a two-way ANOVA, testing for each gene the effects of LINE (N2, DR1350, RIL-14, RIL-17), TREATMENT (non-dauer vs dauer larva-inducing) and the LINE TREATMENT interaction, using a published PERL script. |
WBPaper00034739:N2moreDR1350
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Treatment with 2.0mM of HuminFeed until young adult stage (3 days). |
Gene significantly down-regulated by treatment with 2.0mM of HuminFeed until young adult stage (3 days), with a minimum fold change in gene expression of 0.8. |
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:HF_3d_2.0mM_Down
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Expression Pattern Group F, 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_F
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Genes down-regulated after 300 um Tannic acid treatment. Fold change < 0.8. |
GCRMA |
WBPaper00040963:TA300_down
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Gene transcripts in this set are down-regulated at 5% FDR between L4 lethargus and L4 AND between L4 lethargus and 4-hour old adults. |
Analysis of variance (ANOVA) methods were used to determine differential gene expression using the R/maanova package. |
WBPaper00045960:L4-lethargus_downregulated
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The cluster contains genes that showed expression changes in the let-60(G12V) time course that were different than those in the wild-type time course. |
A mixed procedure analysis of variation (ANOVA) was used to identify genes with significantly different expression levels (P < 0.001). |
[cgc5376]:let-60(G12V)-regulated_genes
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RNP-8-associated transcripts, based on microarray experiments. |
Two-class unpaired SAM (median-centered). |
WBPaper00037611:RNP-8-associated
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