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Transcriptomic responses to high water temperature in Pacific salmon [2009]

ABSTRACT: Characterizing a common cellular stress response (CSR) to high water temperature across species and populations is necessary for identifying the capacity of Pacific salmon (Oncorhynchus spp.) to persist in current and future climate warming scenarios, especially for populations at the southern periphery of their species' distributions. In this study, populations of wild adult pink (O. gorbuscha) and sockeye (O. nerka) salmon from the Fraser River, British Columbia, Canada, were experimentally treated to an ecologically relevant 'cool' or 'warm' water temperature to uncover common transcriptomic responses to elevated water temperature.

OTHER RELATED OMICS DATASETS IN: PRJNA182258PRJNA182257PRJNA182256PRJNA182255

ORGANISM(S): Salmo salar Oncorhynchus gorbuscha Oncorhynchus nerka

PROVIDER: GSE42557 | GEO | 2013/11/01

SECONDARY ACCESSION(S): PRJNA182258

REPOSITORIES: GEO

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Transcriptomic responses to high water temperature in Pacific salmon [2008]

Project description:Characterizing a common cellular stress response (CSR) to high water temperature across species and populations is necessary for identifying the capacity of Pacific salmon (Oncorhynchus spp.) to persist in current and future climate warming scenarios, especially for populations at the southern periphery of their species' distributions. In this study, populations of wild adult pink (O. gorbuscha) and sockeye (O. nerka) salmon from the Fraser River, British Columbia, Canada, were experimentally treated to an ecologically relevant 'cool' or 'warm' water temperature to uncover common transcriptomic responses to elevated water temperature.

2013-11-01 | GSE42556 | GEO

Transcriptomic responses to high water temperature in Pacific salmon [2007]

2013-11-01 | GSE42555 | GEO

Transcriptomic responses to high water temperature in Pacific salmon [2007]

2013-11-01 | E-GEOD-42555 | biostudies-arrayexpress

Transcriptomic responses to high water temperature in Pacific salmon [2008]

2013-11-01 | E-GEOD-42556 | biostudies-arrayexpress

Consequences of high temperatures and premature mortality on the transcriptome and blood physiology of wild adult sockeye salmon (Oncorhynchus nerka)

Project description:We collected sockeye salmon from the Fraser River, British Columbia, and held them at ecologically relevant temperatures (14C and 19C) determine the effect of elevated water temperature on cellular processes in non-lethally sampled gill tissue and blood plasma over a period of seven days that represents a significant portion of their upstream migration. Time-matched fish that died prematurely over the course of the holding study were also sampled for gill tissue and the transcriptomic responses in moribund fish were compared with surviving fish. This is the first study to experimentally examine transcriptomic responses to high water temperature and premature mortality in wild-caught Pacific salmon and the results will help in understanding some of the cellular mechanisms involved in large-scale migration mortality in Pacific salmon during warm water periods and for predicting or understanding causes of mortality in naturally senescing adult Pacific salmon.

2012-05-31 | GSE33586 | GEO

Facing warm temperatures during migration – cardiac mRNA responses of two adult sockeye salmon Oncorhynchus nerka populations to warming and swimming challenges

Project description:The main findings of the current study were that exposing adult sockeye salmon Oncorhynchus nerka to a warm temperature that they regularly encounter during their river migration induced an mRNA-level heat shock response that is exacerbated with swimming. Similar immune defense-related responses were also observed. Microarray analyses revealed that 347 genes were differentially expressed between the cold (12-13° C) and warm (18-19° C) treated fish (P < 0.01), with stress response (GO:0006950; P = 0.014) and response to fungus (GO:0009620; P = 0.003) elevated with warm treatment, while expression for genes involved in oxidative phosphorylation (GO:0006119; P = 0.0019) and electron transport chain (GO:0022900; P = 0.00043) increased in cold-treated fish. By studying single genes with RT-qPCR, warm treatment fish from the Chilko population of O. nerka induced expression of heat shock protein (hsp) 90α, hsp90β and hsp30, as well as interferon-inducible protein (P < 0.05). A Nechako population of O. nerka with a narrower thermal tolerance window than the Chilko population showed even more pronounced responses to the warm treatment. In conclusion, it appears that during their once-in-the-lifetime migration these adult sockeye salmon encounter conditions that induce several cellular defense mechanisms. As river temperatures continue to increase, it remains to be seen whether or not these cellular defenses provide enough protection for all sockeye salmon populations.

2013-12-15 | GSE50054 | GEO

Facing warm temperatures during migration M-bM-^@M-^S cardiac mRNA responses of two adult sockeye salmon Oncorhynchus nerka populations to warming and swimming challenges

Project description:The main findings of the current study were that exposing adult sockeye salmon Oncorhynchus nerka to a warm temperature that they regularly encounter during their river migration induced an mRNA-level heat shock response that is exacerbated with swimming. Similar immune defense-related responses were also observed. Microarray analyses revealed that 347 genes were differentially expressed between the cold (12-13M-BM-0 C) and warm (18-19M-BM-0 C) treated fish (P < 0.01), with stress response (GO:0006950; P = 0.014) and response to fungus (GO:0009620; P = 0.003) elevated with warm treatment, while expression for genes involved in oxidative phosphorylation (GO:0006119; P = 0.0019) and electron transport chain (GO:0022900; P = 0.00043) increased in cold-treated fish. By studying single genes with RT-qPCR, warm treatment fish from the Chilko population of O. nerka induced expression of heat shock protein (hsp) 90M-NM-1, hsp90M-NM-2 and hsp30, as well as interferon-inducible protein (P < 0.05). A Nechako population of O. nerka with a narrower thermal tolerance window than the Chilko population showed even more pronounced responses to the warm treatment. In conclusion, it appears that during their once-in-the-lifetime migration these adult sockeye salmon encounter conditions that induce several cellular defense mechanisms. As river temperatures continue to increase, it remains to be seen whether or not these cellular defenses provide enough protection for all sockeye salmon populations. Two condition experiment; cold treated fish vs. warm treated fish, n=4 in both group

2013-12-15 | E-GEOD-50054 | biostudies-arrayexpress

Novel roles for NKX family members and innate immunity genes in cardiac remodeling

Project description:Here we used RNAseq in juvenile pink salmon (Oncorhynchus gorbuscha) exposed to crude oil at different concetrations to identify molecular changes associated with cardiac defects.

2018-08-10 | GSE102654 | GEO

Consequences of high temperatures and premature mortality on the transcriptome and blood physiology of wild adult sockeye salmon (Oncorhynchus nerka)

2012-05-30 | E-GEOD-33586 | biostudies-arrayexpress

Comparative transcriptomics of Atlantic Salmo salar, chum Onchorhynchus keta and pink salmon O. gorbuscha responding to salmon lice Lepeophtheirus salmonis infections

Project description:The present work characterizes the response of co-habited Atlantic (Salmo salar), chum (Oncorhynchus keta) and pink salmon (Oncorhynchus gorbuscha) to sea lice infections. Atlantic and pink salmon anterior kidney samples were profiled at three time points over nine days after the start of an experimental infection. Chum salmon anterior kidney was profiled at day six post infection only. All three species were also profiled at six days post exposure for skin responses of the pectoral fin, typically associated with lice infection.

2014-02-24 | GSE48337 | GEO

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