To investigate the effect of local genetic variation on heritable traits, we developed a new recombinant inbred line (RIL) population derived from four wild isolates. The wild isolates were collected from two closely located sites in France: Orsay and Santeuil. By crossing these four genetically diverse parental isolates a population of 200 RILs was constructed. RNA-seq was used to obtain sequence polymorphisms
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Sex, Specimen part, Cell line
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Age, Specimen part
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Sex, Age, Specimen part, Disease
View SamplesIn mice, zygotic activation mainly occurs on a wide variety of genes mainly at the 2-cell stage. Long noncoding RNAs (lncRNAs) are increasingly being recognized as molecules that modulate gene expression. In this study, we performed the directional RNA-seq of MII oocytes and 2-cell embryos to identify the long noncoding RNAs activated during ZGA.
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View SamplesVHL inactivation is a major component of renal cancer. In this study we re-engineered RCC4 cells to re-express VHL and performed mRNA-sequencing on triplicates to analyse gene and transcript expression changes specific to VHL inactivation.
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View SamplesWe first offered a comprehensive transcriptome from three pig adipose tissues (Hypodermal layer of backfat, greater omentum and mesenteric adipose tissue) by high-throughput RNA-Seq.
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Sex, Specimen part
View SamplesRecent studies suggest vitamin D deficiency is associated with chronic lung diseases such as asthma and chronic obstructive pulmonary disease. Each of these are characterised by airway hyperresponsiveness (AHR) and airway remodeling, the latter characterized by increased airway smooth muscle (ASM) mass. In this study we investigated the biological mechanisms underlying increased ASM mass and AHR due to vitamin D deficiency via RNA-seq transcriptome analysis of female BALB/c mice at 8 weeks of age.
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View SamplesRNA expression in adipose and skin from women with polycystic ovary syndrome (PCOS) was examined using RNA sequencing (Illumina HiSeq 50 cycle single-read sequencing) as a function of the genotype at 16 PCOS genetic risk variants. We hypothesized that the tissue expression pattern in adipose and skin would help identify candidate genes and pathways that could provide insight into the underlying mechanism for risk at these loci.
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Sex, Age, Specimen part
View SamplesHigh-throughput sequencing of RNA (RNA-Seq) in human cancer shows remarkable potential to simultaneously identify expression levels of protein-coding genes and long non-coding RNAs (lncRNAs). We performed RNA-Seq to investigate expression level of lncRNAs and protein-coding genes in 30 esophageal samples, including 15 esophageal squamous cell carcinoma (ESCC) tissue samples and 15 paired non-tumor tissues. We further developed an integrative bioinformatics method, denoted URW-LPE (for unsupervised random walk with each dysregulated lncRNA/PCG), to identify key functional lncRNAs that regulate expression of downstream protein-coding genes in ESCC. By this method, multiple known cancer and novel potentially functional lncRNAs were effectively identified. Quantitative reverse-transcription PCR was performed to confirm the lncRNA expression level of eight novel functional lncRNAs in an additional 120 paired ESCC patient samples. Finally, we characterized lncRNA625 as a novel ESCC regulator of cell proliferation, invasion and migration. Moreover, we identified E1A-binding protein p300 (EP300) as playing a key role in executing lncRNA625-induced transcriptional responses. These findings establish the utility of integrative bioinformatics analyses of RNA-Seq to identify cancer-associated functional lncRNAs.
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View SamplesWe report a comprehensive large-scale expression profiling analysis of mammalian male germ cells undergoing mitotic growth, meiosis and gametogenesis using High Density Oligonucleotide Microarrays and highly enriched cell populations. Among 11955 rat loci investigated, 1268 were identified as differentially transcribed in germ cells at subsequent developmental stages as compared to total testis, somatic Sertoli cells as well as brain and skeletal muscle controls. The loci were organized into four expression clusters that correspond to somatic, mitotic, meiotic and post-meiotic cell types. This work provides information about expression patterns of approximately 200 genes known to be important during male germ cell development. Approximately 40 of those are included in a group of 121 transcripts for which we report germ cell expression and lack of transcription in three somatic control cell types. Moreover, we demonstrate the testicular expression and transcriptional induction in mitotic, meiotic and/or post-meiotic germ cells of 293 as yet uncharacterized transcripts some of which are likely to encode factors involved in spermatogenesis and fertility. This group also contains numerous potential germ cell specific targets for innovative contraceptives. A graphical display of the data is conveniently accessible through the GermOnline database at <a href="http://www.germonline.org" target="_blank">http://www.germonline.org</a>.
Expression profiling of mammalian male meiosis and gametogenesis identifies novel candidate genes for roles in the regulation of fertility.
Sex, Age, Specimen part
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