Oncorhynchus mykiss
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA203197 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR857307.fastq.gz | Fastqsanger.gz | |||
| SRR857308.fastq.gz | Fastqsanger.gz | |||
| SRR857309.fastq.gz | Fastqsanger.gz | |||
| SRR857310.fastq.gz | Fastqsanger.gz | |||
| SRR857311.fastq.gz | Fastqsanger.gz |
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Similar Datasets
Project description:Stocking density is considered as a key factor determining the productivity of fish aquaculture systems. The transcriptomic response to crowding stress is, however, still poorly investigated. We aimed at the identification of potential biomarker genes via microarray analyses to get insight into molecular pathways modulated through density-induced stress in farmed rainbow trout Oncorhynchus mykiss. Transcriptome profiling in liver, kidney, and gills was complemented with behaviarol observation and analysis of classical plasma parameters. Individuals of two trout strains were exposed for eight days to definite stocking densities, 1 kg/m³ (low density); 10 kg/m³ (moderate); 18 kg/m³ (elevated); and 35 kg/m³ (high). Whereas stocking density had no significant effect on cortisol levels, plasma glucose levels were elevated in trout kept at high density. Pathway enrichment analyses confirmed the upregulation of HIF1a signaling in liver contributing to glucose homeostasis during stress conditions, while mTOR and PI3K/AKT signaling pathways were downregulated. Further perturbed hepatic pathways were involved in protein ubiquitination and the biosynthesis of cholesterol, retinol and glutathione. Three stocking density conditions were investigated: an uncrowded âmoderateâ density (MD: 10 kg trout/m³) , an elevated density (ED: 18 kg/m³ ), and high density (HD: 35 kg/m³). The experiment was performed twice with two strains of Steelhead rainbow trout (Troutlodge and Born trout), randomly assigned to identical glass tanks with MD (30 and 34 individuals), ED (60 and 64 individuals), and HD (120 and 140 individuals). Trout were sampled 8 d after experimental onset.
2015-10-24 | E-GEOD-74332 | biostudies-arrayexpress
Project description:Hepatic transcriptome response to glucocorticoid receptor activation in rainbow trout.
| PRJNA99721 | ENA
Project description:Rainbow trout (Oncorhynchus mykiss) is highly sensitive to high-temperature stress as an important economic cold-water fish. While previous research has concentrated on the transcriptomic to acute heat stress in rainbow trout, there remains a gap in knowledge regarding the overarching regulatory mechanisms at the translation level. In our research, we utilized a combination of transcriptomic and translatomic analyses to investigate the intricate molecular response mechanisms in the liver of rainbow trout when subjected to heat stress. Through comprehensive multi-omics analysis, we revealed the dynamic translational pattern of rainbow trout liver under heat stress for the first time. Comparative analysis of ribosome analysis data with RNA-seq data showed that the fold changes of gene expression at the transcriptional level were highly correlated (R2 = 0.83) with those at the translational level globally. In total, 2,203 genes exhibited significant alterations exclusively within the translational level. However, the limited overlap in response genes between transcription and translation under heat stress suggests that these two processes may independently modulate the cellular response to thermal challenges. Significant changes in the translation efficiency of 809 genes were observed under heat stress. Further analysis indicated that the translation efficiency of genes were strongly influenced by sequence characteristics such as GC content, coding sequence length and NMFE. Moreover, 3,468 putative uORFs were identified in 2,676 genes, which potentially modulating translation efficiency of mORFs. These findings provide a novel perspective for understanding the physiological adaptations of rainbow trout in response to changes in ambient temperature.
2024-04-01 | GSE262612 | GEO
Project description:Rainbow trout in response to heat stress. miRNA transcriptome
| PRJNA391032 | ENA
Project description:Rainbow trout (Oncorhynchus mykiss) is highly sensitive to high-temperature stress as an important economic cold-water fish. While previous research has concentrated on the transcriptomic to acute heat stress in rainbow trout, there remains a gap in knowledge regarding the overarching regulatory mechanisms at the translation level. In our research, we utilized a combination of transcriptomic and translatomic analyses to investigate the intricate molecular response mechanisms in the liver of rainbow trout when subjected to heat stress. Through comprehensive multi-omics analysis, we revealed the dynamic translational pattern of rainbow trout liver under heat stress for the first time. Comparative analysis of ribosome analysis data with RNA-seq data showed that the fold changes of gene expression at the transcriptional level were highly correlated (R2 = 0.83) with those at the translational level globally. In total, 2,203 genes exhibited significant alterations exclusively within the translational level. However, the limited overlap in response genes between transcription and translation under heat stress suggests that these two processes may independently modulate the cellular response to thermal challenges. Significant changes in the translation efficiency of 809 genes were observed under heat stress. Further analysis indicated that the translation efficiency of genes were strongly influenced by sequence characteristics such as GC content, coding sequence length and NMFE. Moreover, 3,468 putative uORFs were identified in 2,676 genes, which potentially modulating translation efficiency of mORFs. These findings provide a novel perspective for understanding the physiological adaptations of rainbow trout in response to changes in ambient temperature.
2024-04-16 | GSE263547 | GEO
Project description:Stocking density is considered as a key factor determining the productivity of fish aquaculture systems. The transcriptomic response to crowding stress is, however, still poorly investigated. We aimed at the identification of potential biomarker genes via microarray analyses to get insight into molecular pathways modulated through density-induced stress in farmed rainbow trout Oncorhynchus mykiss. Transcriptome profiling in liver, kidney, and gills was complemented with behaviarol observation and analysis of classical plasma parameters. Individuals of two trout strains were exposed for eight days to definite stocking densities, 1 kg/m³ (low density); 10 kg/m³ (moderate); 18 kg/m³ (elevated); and 35 kg/m³ (high). Whereas stocking density had no significant effect on cortisol levels, plasma glucose levels were elevated in trout kept at high density. Pathway enrichment analyses confirmed the upregulation of HIF1a signaling in liver contributing to glucose homeostasis during stress conditions, while mTOR and PI3K/AKT signaling pathways were downregulated. Further perturbed hepatic pathways were involved in protein ubiquitination and the biosynthesis of cholesterol, retinol and glutathione.
2015-10-24 | GSE74332 | GEO
Project description:Rainbow trout (Oncorhynchus mykiss) is a typical cold-water fish, the development of rainbow trout aquaculture was severely hampered via the high temperature in summer. Understanding the regulatory mechanism of rainbow trout response to chronic heat stress can provide a theoretical basis for formulating measures to relieve heat stress. In the study, changes in the biochemical parameters revealed that a strong stress response occurred in rainbow trout at 24 °C, the organisms stress defense system was activated, and the immune system was also affected. Proteome of rainbow trout liver tissues under heat stress (24 °C) and control conditions (18 °C) were performed using DIA/SWATH. A total of 390 DEPs were identified by strict threshold (q-value <0.05 and fold changes >1.5), among them 175 were up-regulated and 225 were down-regulated. Some proteins related to HSP, metabolism and immunity were identified. GO analysis showed that some proteins that were highly induced to express at high temperature were involved in the regulation of cell homeostasis, metabolism, adaptive stress and stimulation. KEGG analysis shows that some pathways play an important role in the regulation of heat stress, such as metabolic pathway, protein processing in endoplasmic reticulum pathway, PPAR signaling pathway and complement and coagulation cascades pathway, etc. PPI network analysis shows HSP90b1 and C3 maybe cooperative to protect the integrity of cell membrane function under heat stress. Our finding provide a comprehensive review of protein expression of rainbow trout liver under heat stress, which helps to formulate strategies for rainbow trout to relieve heat stress during high temperature in summer.
2020-07-06 | PXD020206 |
Project description:The hypoxia frequently occurs in natural aquatic systems and aquaculture environment due to the natural reasons and human factors such as extreme climate, high density farming, environmental pollution and global warming, which have gradually become a huge threat to aquatic ecosystem functions and aquatic organism survival, causing serious ecological damage and enormous economic losses. Rainbow trout (Oncorhynchus mykiss), as a hypoxia-sensitive fish species, is a good model to study hypoxia stress. The molecular regulation and oxidative stress of rainbow trout still remains unknown in response to environmental hypoxia and reoxygenation stress. In this study, the transcriptome and biochemical indexes of rainbow trout liver in response to hypoxia for different durations were analyzed to highlight the changes in the molecular regulation and oxidative stress.
2021-02-25 | GSE167386 | GEO
Project description:Rainbow trout is a typical cold-water fish, with the intensification of global warming, high temperatures severely restrict the development of aquaculture in summer. Understanding the molecular regulation mechanisms of rainbow trout in response to heat stress will be salutary to alleviate heat stress-related damage. In the present study, we performed transcriptome analysis of liver tissues in rainbow trout under heat stress (24℃) and control (18℃) conditions to identify induced lncRNAs and pathways by heat stress. More than 658 million clean reads and 5,916 lncRNAs were identified from six liver libraries. A total of 927 novel lncRNAs were generated and 428 differentially expressed lncRNAs were screened through stringent thresholds. The RNA-seq results were verified by RT-qPCR. In addition, the regulatory network of important functional lncRNA-mRNA were constructed. GO and KEGG enrichment analysis of target gene of differentially expressed lncRNAs were performed. Many target genes involved in maintaining homeostasis or adapting to stress and stimuli were highly induced under heat stress. Several important regulatory pathways were involved in heat stress, including thyroid hormone signaling pathway, PI3K-Akt signaling pathway, estrogen signaling pathway, etc. This result broadens our understanding of lncRNA associated with heat stress and provides new insights into lncRNA-mediated regulation of rainbow trout heat stress.
2019-08-11 | GSE135668 | GEO
Project description:With the intensification of global warming, rainbow trout is suffering from varying degrees thermal stimulation, heat stress may cause pathological signs or diseases by reducing the immune roles and then lead to mass mortality, so high temperatures severely restrict the development of its aquaculture. Understanding the molecular regulation mechanism of rainbow trout under heat stress is used to take measures to relieve symptoms. We performed multiple transcriptomic analysis of liver tissues from rainbow trout under heat stress (24 °C) and control conditions (18 °C) to identify circRNAs, miRNAs and mRNAs. Changes of non-specific immune parameters revealed that strong stress response of rainbow trout is caused in 24 °C. A total of 324 DEcircRNAs, 105 DEmiRNAs, and 1885 DEmRNAs were identified from six libraries, and ceRNA regulatory network is constructed. 301 circRNA–miRNA and 51 miRNA–mRNA negative correlation pairs were screened from ceRNA regulatory network, and predicted three regulatory correlation pairs that novel_circ_003889 - novel-m0674-3p - hsp90ab1, novel_circ_002325 - miR-18-y - HSPA13 and novel_circ_002446 - novel-m0556-3p - hsp70. Some genes involved in metabolic process, biological regulation or response to stimulus are highly induced at high temperatures. Several important pathways involved in heat stress were characterized, such as Protein processing in endoplasmic reticulum (ER), Estrogen signaling pathway, HIF-1 signaling pathway, etc. These results extend our understanding of the molecular mechanisms of heat stress response and expected to provide a novel insight into develop strategies for relieve heat stress.
2019-11-08 | GSE140112 | GEO