Tegula funebralis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA245875 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR1265860_1.fastq.gz | Fastqsanger.gz | |||
| SRR1265860_2.fastq.gz | Fastqsanger.gz | |||
| SRR1265870_1.fastq.gz | Fastqsanger.gz | |||
| SRR1265870_2.fastq.gz | Fastqsanger.gz | |||
| SRR1265861_1.fastq.gz | Fastqsanger.gz |
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Project description:Tegula funebralis (black turban snail), xgChlFune1
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Project description:Tegula funebralis (black turban snail) genomic and transcriptomic data
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Project description:Southern California (USA) populations of the intertidal marine snail Chlorostoma (formerly Tegula) funebralis are generally exposed to higher air and water temperatures than northern California populations. Previous studies have shown that southern populations are more tolerant of heat stress than northern populations. To assess the potential role of gene regulation in these regional differences, we examined transcriptome responses to thermal stress in two southern and two northern populations of C. funebralis. Snails from the four populations were acclimated to a common lab environment, exposed to a heat stress representative of natural low tide conditions, and then analyzed using RNA-Seq to characterize changes in gene expression associated with stress and differences in expression across geographic regions. Changes in expression following stress were dominated by genes involved in apoptosis, the inflammatory response, response to mis and unfolded proteins, and ubiquitination of proteins. Heat shock proteins (Hsps) were up-regulated in both northern and southern populations. However, while the magnitude of the response was significantly greater in northern populations for the majority of Hsp70s, the southern populations showed a greater up-regulation for roughly half of the Hsp40s, which are co-chaperones for Hsp70s. Differential expression analysis of the control versus treatment genes in the northern and southern populations respectively revealed that 56 genes, many involved in the inflammation and immune response, responded to heat stress only in the northern populations. Moreover, several of the molecular chaperones and antioxidant genes that were not differentially expressed in the southern populations instead showed higher constitutive expression under control conditions compared to the northern populations. The expression levels of some of these constitutive genes such as superoxide dismutase were also found to positively correlate with survival following heat stress. This suggests that expression of these genes has evolved a degree of M-bM-^@M-^\frontloadingM-bM-^@M-^] that may contribute to the higher thermal tolerance of southern populations. mRNA profiles of northern and southern California heat-stressed and control C. funebralis were generated by 100bp paired end sequencing, in duplicate, using Illumina HiSeq2000.
2014-08-20 | E-GEOD-57142 | biostudies-arrayexpress
Project description:Southern California (USA) populations of the intertidal marine snail Chlorostoma (formerly Tegula) funebralis are generally exposed to higher air and water temperatures than northern California populations. Previous studies have shown that southern populations are more tolerant of heat stress than northern populations. To assess the potential role of gene regulation in these regional differences, we examined transcriptome responses to thermal stress in two southern and two northern populations of C. funebralis. Snails from the four populations were acclimated to a common lab environment, exposed to a heat stress representative of natural low tide conditions, and then analyzed using RNA-Seq to characterize changes in gene expression associated with stress and differences in expression across geographic regions. Changes in expression following stress were dominated by genes involved in apoptosis, the inflammatory response, response to mis and unfolded proteins, and ubiquitination of proteins. Heat shock proteins (Hsps) were up-regulated in both northern and southern populations. However, while the magnitude of the response was significantly greater in northern populations for the majority of Hsp70s, the southern populations showed a greater up-regulation for roughly half of the Hsp40s, which are co-chaperones for Hsp70s. Differential expression analysis of the control versus treatment genes in the northern and southern populations respectively revealed that 56 genes, many involved in the inflammation and immune response, responded to heat stress only in the northern populations. Moreover, several of the molecular chaperones and antioxidant genes that were not differentially expressed in the southern populations instead showed higher constitutive expression under control conditions compared to the northern populations. The expression levels of some of these constitutive genes such as superoxide dismutase were also found to positively correlate with survival following heat stress. This suggests that expression of these genes has evolved a degree of “frontloading” that may contribute to the higher thermal tolerance of southern populations.
2014-08-20 | GSE57142 | GEO
Project description:Radiofrequency heat ablation is an ideal radical cure for HCC treatment; however, insufficient radiofrequency ablation (IRFA) could lead to a high recurrence rate. N7-methylguanosine (m7G) on tRNAs is a heat-responding modification that is critical for yeast survival under high temperature, while its function and mechanism in HCC recurrence after IRFA are unknown. Here, we found that IRFA significantly up-regulates the level of m7G tRNA modification and its methyltransferase complex components METTL1 and WDR4 in multiple systems including HCC patient-derived xenograft (PDX) mouse, HCC tissues of patients, sublethal-heat-treated models of HCC cell lines and organoids. Functionally, gain- or loss-of function assays showed that METTL1 mediated m7G tRNA modification promotes HCC metastasis under sublethal heat exposure both in vitro and in vivo. Mechanistically, we found that METTL1 and m7G tRNA modification enhance the translation of SLUG and SNAIL in a codon frequency dependent manner under sublethal heat exposure. Overexpression of SLUG and SNAIL rescued the malignant potency of METTL1 knockdown HCC cells after sublethal heat stress. Our study uncovers the important physiological functions of m7G tRNA modification in heat stress responses and HCC recurrence after IRFA and suggests that targeting METTL1-m7G-SLUG and SNAIL axis could be a promising strategy to prevent HCC metastasis after radiofrequency heat ablation treatment.
2022-11-20 | GSE199966 | GEO
Project description:Porcelain crabs, Petrolisthes cinctipes, live in the marine intertidal zone and routinely experience thermal stress. Genes involved in heat shock responses are generally upregulated following heat stress and genes involved in oxidative energy production are downregulated following heat stress We used microarrays to detail the global programme of gene expression underlying responses to thermal stress and identified distinct classes of up-regulated and down-regulated genes during this process. Keywords: time course
2007-04-16 | GSE7498 | GEO
Project description:Porcelain crabs, Petrolisthes cinctipes, live in the marine intertidal zone and routinely experience thermal stress. Genes involved in heat shock responses are generally upregulated following heat stress, differentially expressed genes are involved in different cellular functions. We used microarrays to detail the global programme of gene expression underlying responses to thermal stress and identified distinct classes of up-regulated and down-regulated genes during this process.
2009-09-21 | GSE17361 | GEO
Project description:Porcelain crabs, Petrolisthes cinctipes, live in the marine intertidal zone and routinely experience thermal stress. Genes involved in heat shock responses are generally upregulated following heat stress and genes involved in oxidative energy production are downregulated following heat stress We used microarrays to detail the global programme of gene expression underlying responses to thermal stress and identified distinct classes of up-regulated and down-regulated genes during this process. Keywords: time course Crabs were collected from the field and returned to the laboratory where they were given a heat stress or held under control conditions for the period of time during the heat stress. Samples from both heat stressed and control crabs were taken after crabs were placed into a common recovery tank for periods of time ranging from 0.5 to 30h
2007-04-16 | E-GEOD-7498 | biostudies-arrayexpress