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mRNAs that showed decreased expression in 1 cell mebryo comparing to in oocyte, according to RNAseq analysis. |
Gaussian error propagation. As cutoff for the up-regulated genes authors used log2 fold change > 1 and P < 0.05 and as cutoff for the down-regulated genes authors used log2 fold change < -1 and P < 0.05. |
WBPaper00045420:fertilization_downregulated_transcript
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Bacteria infection: Enterococcus faecalis |
Genes with increased expression after 24 hours of infection by E.faecalis Fold changes shown are pathogen vs OP50. |
For RNA-seq and tiling arrays, log2 fold changes between gene expression values of infected versus uninfected nematodes were calculated. For log2 fold changes > 0.00001 the values > 81.25th percentile were defined as up-regulated and for log2 fold changes < -0.00001 the values < 18.75th percentile were defined as down-regulated. |
WBPaper00038438:E.faecalis_24hr_upregulated_TilingArray
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Bacteria infection: Serratia marcescens |
Genes with increased expression after 24 hours of infection by S.marcescens Fold changes shown are pathogen vs OP50. |
For RNA-seq and tiling arrays, log2 fold changes between gene expression values of infected versus uninfected nematodes were calculated. For log2 fold changes > 0.00001 the values > 81.25th percentile were defined as up-regulated and for log2 fold changes < -0.00001 the values < 18.75th percentile were defined as down-regulated. |
WBPaper00038438:S.marcescens_24hr_upregulated_TilingArray
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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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Significantly upregulated genes from cyc-1(RNAi) microarrays using SAM algorithm with an FDR < 0.1 from adult-only chips. |
SAM algorithm with an FDR < 0.1. |
WBPaper00033065:cyc-1(RNAi)_upregulated
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Bacteria infection: Erwinia carotovora |
Genes down-regulated in animals infected with Erwinia carotovora compared to the E. coli OP50 control after 24h of infection. |
MAANOVA and BRB-Array-Tools. |
WBPaper00030985:Erwinia_carotovora_downregulated
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Genes that showed significantly decreased expression level in rsr-2(RNAi) animals comparing to in gfp(RNAi) control. |
Fold change > 1.2 or < 0.8. |
WBPaper00042477:rsr-2(RNAi)_downregulated_TilingArray
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Coexpression clique No. 211, srj-42-srw-113, on the genome-wide coexpression clique map for the nematode GPL200 platform. |
All available microarray datasets for the GPL200 platform (Affymetrix C. elegans Genome Array) were obtained from the GEO repository. This included 2243 individual microarray experiments. These were normalized against each other with the software RMAexpress (Bolstad, 2014). Based on these normalized values, Pearsons correlation coefficients were obtained for each probe-probe pair of the 22,620 probes represented on this array type. The resulting list of correlation coefficients was then ranked to generate the ranked coexpression database with information on each probe represented on the GPL200 platform. |
WBPaper00061527:srj-42-srw-113
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Genes with differential expression under 0.5mg/l Chlorpyrifos (CPF) and 1.0mg/l Diazinon (DZN) treatment at 16 centigrade. |
To identify the differentially expressed genes in each treatment authors used linear models per toxicant and temperature (gene expression = Toxicant (effect) + error). The lm function in R stats package was used to implement the linear models analysis with recommended default options. For threshold determination authors used a permutation approach. For each of the 23,232 permutations used authors randomly picked a transcript (array spot), which could only be picked once. Authors combined all the expression values of this transcript and randomly distributed them over the replicates and used them in the linear model. In this way authors obtained a threshold for each of the toxicants. Authors used a -log10 p-value 2 as common threshold for the analysis, which resembles to the following FDR per toxicant: 0.0155 for CPF at 24 centigrade, 0.0148 for DZN at 24 centigrade, 0.0168 for CPF+DZN at 24 centigrade, 0.0142 for CPF at 16 centigrade, 0.0151 for DZN at 16 centigrade, and 0.0148 for CPF+DZN, at 16 centigrade. |
WBPaper00037113:Chlorpyrifos_Diazinon_16C_regulated
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heat shock |
Genes for which heat shock F3 (fraction 3, containing heavy polysomes) versus control F3 is significantly decreased |
Survival during heat stress was analyzed using a non-parametric (Mantel-Haenszel) Log rank test and presented as Kaplan-Meier survival curves (Prism software package). For the TSA analysis all full genome wide expression analyses involved comparisons of two groups and thus on a gene by gene basis, for each set, authors performed two-sample t-tests on the log2 transformed expression measures to derive raw p-values. The Benjamini and Hochberg was then used to report the inference adjusted for multiple comparisons (q-values), in their case controlling false discovery rate (FDR). Statistically significant differential expression was defined as FDR q-value <= 0.05, thereby controlling FDR at <= 0.05 for each set of comparisons. Shown here are heat shock vs control ratio and raw p_value based on two-sample t-test. |
WBPaper00037147:heatshock_downregulated
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