GEO DataSets

(Submitter supplied) Growth rate can be genetically modified in many vertebrates by domestication and selection, and more recently by transgenesis overexpressing growth factor genes (e.g. growth hormone, GH). While the phenotypic end consequence is similar, it is currently not clear whether the same modifications to physiological pathways are occurring in both genetic processes, nor to what extent they may interact when combined. more...

Organism:

Salmo salar; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

30 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Danio rerio; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Salmo salar; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platforms:

GPL2716 GPL14375

28 Samples

Download data: PAIR, TXT

(Submitter supplied) Juvenile rainbow trout were fed Biodiet starter (4% body weight per day) with MeHg added at 0, 0.5, 5 and 50 ppm for six weeks. Atomic absorption spectrometry was applied to measure the level of MeHg in the whole fish body. Trout at six weeks were sampled from each group for gene expression analysis by cGRASP 16K cDNA microarrays. MeHg-exposed rainbow trout did not show overt signs of toxicity, nor were significant differences seen in mortality, length, mass, or condition factor. more...

Organism:

Salmo salar; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

4 Samples

Download data: TXT

(Submitter supplied) Parental effects represent an important source of variation in offspring phenotypes. Depending on the specific mechanisms involved, parental effects may be caused to different degrees by either the maternal or paternal parent, and these effects may in turn act at different stages of development. In order to detect parental effects acting on gene transcription regulation and length phenotype during ontogeny, the transcriptomic profiles of two reciprocal hybrids from Laval × Rupert and Laval × domestic populations of brook charr were compared at hatching, yolk sac resorption, and 15 weeks after exogenous feeding. more...

Organism:

Osmerus mordax; Salvelinus fontinalis; Coregonus clupeaformis; Oncorhynchus mykiss; Salmo salar; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

96 Samples

Download data: TXT

(Submitter supplied) To identify genes involved in the developmental process of Atlantic salmon smoltification, gene expression was compared between smolt and parr in tissues involved in osmoregulation (gill), metabolism (liver), imprinting (olfactory rosettes) and neuroendocrine control (hypothalamus and pituitary). Tissue samples were harvested from laboratory-reared parr and smolts on the same date. Smolts were distinguished from parr by size and appearance; developmental status was confirmed by physiological assays.

Organism:

Oncorhynchus mykiss; Salmo salar; Oncorhynchus tshawytscha; Osmerus mordax; Coregonus clupeaformis

Type:

Expression profiling by array

Platform:

GPL2716

38 Samples

Download data: TXT

(Submitter supplied) Exposure to environmental contaminants like nonylphenol can disrupt smolt development and may be a contributing factor in salmon population declines. We used GRASP 16K cDNA microarrays to identify genes that are differentially expressed in the liver, gill, hypothalamus, pituitary, and olfactory rosettes of Atlantic salmon smolts treated with nonylphenol compared to control smolts. Nonylphenol treatment was confirmed using physiological assays: nonylphenol-treatment significantly decreased gill Na+,K+-ATPase activity and plasma cortisol and T3 levels.

Organism:

Salmo salar; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

40 Samples

Download data: TXT

(Submitter supplied) 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. more...

Organism:

Coregonus clupeaformis; Oncorhynchus mykiss; Oncorhynchus nerka; Salmo salar; Oncorhynchus tshawytscha; Osmerus mordax

Type:

Expression profiling by array

Platform:

GPL2716

40 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Oncorhynchus mykiss; Oncorhynchus nerka; Salmo salar; Oncorhynchus tshawytscha; Osmerus mordax; Coregonus clupeaformis

Type:

Expression profiling by array

Platforms:

GPL8904 GPL2716

128 Samples

Download data: TXT

(Submitter supplied) The long-term viability of Pacific salmon stocks and the fisheries they support are threatened if large numbers die prematurely en-route to spawning grounds. Physiological profiles that were correlated with the fate of wild sockeye salmon during river migration were discovered using functional genomics studies on biopsied tissues. Three independent biotelemetry studies tracked the biopsied fish after tagging in the marine environment over 200 km from the Fraser River, in the lower river 69 km from the river mouth and at the spawning grounds. more...

Organism:

Oncorhynchus mykiss; Oncorhynchus tshawytscha; Oncorhynchus nerka; Osmerus mordax; Salmo salar; Coregonus clupeaformis

Type:

Expression profiling by array

Platform:

GPL2716

104 Samples

Download data: TXT

(Submitter supplied) The long-term viability of Pacific salmon stocks and the fisheries they support are threatened if large numbers die prematurely en-route to spawning grounds. Physiological profiles that were correlated with the fate of wild sockeye salmon during river migration were discovered using functional genomics studies on biopsied tissues. Three independent biotelemetry studies tracked the biopsied fish after tagging in the marine environment over 200 km from the Fraser River, in the lower river 69 km from the river mouth and at the spawning grounds. more...

Organism:

Osmerus mordax; Coregonus clupeaformis; Oncorhynchus mykiss; Oncorhynchus nerka; Salmo salar; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

35 Samples

Download data: TXT

(Submitter supplied) The retention of a nucleus in the mature state of fish red blood cells (RBCs), and the ability to easily collect and manipulate blood in non-terminal experiments, makes it an ideal tissue on which to study the cellular stress response in fish. Through the use of the cGRASP 16K salmonid microarray, we are currently investigating differences in RBC global gene transcription in fish held under control conditions (12C) and exposed to heat stress (one hour at 25C followed by recovery at 12C). more...

Organism:

Oncorhynchus tshawytscha; Osmerus mordax; Oncorhynchus mykiss; Salmo salar; Coregonus clupeaformis

Type:

Expression profiling by array

Platform:

GPL2716

32 Samples

Download data: TXT

(Submitter supplied) Genetic analyses of speciation have focused nearly exclusively on retrospective analyses of reproductive isolation between highly divergent species. Yet, a full understanding of the speciation process must encompass analysis of the consequences of genomic divergence in young lineages still capable of exchanging genes under natural conditions. The accumulation of conditionally neutral genetic variation may lead to the evolution of divergent gene networks. more...

Organism:

Oncorhynchus mykiss; Oncorhynchus tshawytscha; Osmerus mordax; Salmo salar; Coregonus clupeaformis

Type:

Expression profiling by array

Platform:

GPL2716

64 Samples

Download data: TXT

(Submitter supplied) The genetic mechanisms underlying hybridization are poorly understood despite their potentially important roles in speciation processes, adaptative evolution, and agronomical innovation. In this study, transcription profiles were compared among three populations of brook charr and their hybrids using microarrays to assess the influence of hybrid origin on modes of transcription regulation inheritance and on the mechanisms underlying growth. more...

Organism:

Salmo salar; Salvelinus fontinalis; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

96 Samples

Download data: TXT

(Submitter supplied) Despite the progress achieved in elucidating the ecological mechanisms of adaptive radiation, there has been little focus on documenting the extent of adaptive differentiation in physiological functions during this process. Moreover, a thorough understanding of the genomic basis underlying phenotypic adaptive divergence is still in its infancy. One important evolutionary process for which causal genetic mechanisms are largely unknown pertains to life-history trade-offs. more...

Organism:

Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha; Coregonus clupeaformis; Salmo salar

Type:

Expression profiling by array

Platform:

GPL2716

48 Samples

Download data: TXT

(Submitter supplied) Time is often not characterized as a variable in ecotoxicogenomic studies. In this study, the temporal kinetics in gene expression were determined during exposure to crude oil and a subsequent recovery period. Juvenile rainbow trout, Oncorhynchus mykiss, were exposed for 96 hours to the water accomodated fractions of 0.4, 2 or 10 mg l-1 crude oil loadings. Following 96 h of exposure, fish were transferred to recovery tanks for 96 h. more...

Organism:

Oncorhynchus mykiss; Salmo salar; Oncorhynchus tshawytscha; Coregonus clupeaformis; Osmerus mordax

Type:

Expression profiling by array

Platform:

GPL2716

57 Samples

Download data: TXT

(Submitter supplied) Traditional biomarkers for hydrocarbon exposure are not induced by all petroleum substances. The objective of this study was to determine if exposure to a crude oil and different refined oils would generate a common hydrocarbon-specific response in gene expression profiles that could be used as generic biomarkers of hydrocarbon exposure. Juvenile rainbow trout (Oncorhynchus mykiss) were exposed to the water accommodated fraction (WAF) of either kerosene, gas oil, heavy fuel oil, or crude oil for 96 hours. more...

Organism:

Osmerus mordax; Oncorhynchus mykiss; Coregonus clupeaformis; Oncorhynchus tshawytscha; Salmo salar

Type:

Expression profiling by array

Platform:

GPL2716

32 Samples

Download data: TXT

(Submitter supplied) This study compared changes in gene expression in an oviparous female fish, the rainbow trout (Oncorhynchus mykiss), under two different photoperiod treatments, a natural photoperiod (NP) and a shortened photoperiod (SP; 60% of NP). Gene expression in the liver, ovary and pituitary were measured at one-four week intervals over the course of the reproductive cycle in each treatment. Total RNA was harvested from these tissues, cDNA prepared, and hybridized on the 16K GRASP cDNA microarray. more...

Organism:

Oncorhynchus mykiss; Oncorhynchus tshawytscha; Osmerus mordax; Salmo salar; Coregonus clupeaformis

Type:

Expression profiling by array

Platform:

GPL2716

183 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Coregonus clupeaformis; Oncorhynchus mykiss; Salmo salar; Osmerus mordax; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

54 Samples

Download data: MEV

(Submitter supplied) Due to difficulties inherent in designating conservation units for effective species management and conservation, the use of multiple complementary sources of information is required to identify and assess the designation of conservation units based on the degree of variation among populations within a species. In this study, we combined estimates of microsatellite and transcriptomic variation to assess the population structure and potential for adaptive variation of threatened Atlantic salmon, Salmo salar, among rivers in the Bay of Fundy. more...

Organism:

Oncorhynchus mykiss; Oncorhynchus tshawytscha; Osmerus mordax; Salmo salar; Coregonus clupeaformis

Type:

Expression profiling by array

Platform:

GPL2716

34 Samples

Download data: MEV

(Submitter supplied) Due to difficulties inherent in designating conservation units for effective species management and conservation, the use of multiple complementary sources of information is required to identify and assess the designation of conservation units based on the degree of variation among populations within a species. In this study, we combined estimates of microsatellite and transcriptomic variation to assess the population structure and potential for adaptive variation of threatened Atlantic salmon, Salmo salar, among rivers in the Bay of Fundy. more...

Organism:

Salmo salar; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

20 Samples

Download data: MEV