GEO DataSets

(Submitter supplied) Purpose: Corals are major sources of dimethylsulphoniopropionate (DMSP), a compound that plays a central role in the global sulphur cycle. While DMSP biosynthesis pathways have been investigated in plants and algae, the molecular basis for its production by corals is unknown. Given its potential role as an osmolyte, the effect of salinity stress on levels of DMSP was investigated in both adults and juveniles (lacking photosynthetic symbionts) of the coral Acropora millepora. more...

Organism:

Acropora millepora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23215

45 Samples

Download data: CSV, FASTA, GFF, TXT

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

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL6515

26 Samples

Download data: GPR

(Submitter supplied) The declining health of coral reefs worldwide is likely to intensify in response to continued anthropogenic disturbance from coastal development, pollution, and climate change. In response to these stresses, reef-building corals may exhibit bleaching, which marks the breakdown in symbiosis between coral and zooxanthellae. Mass coral bleaching due to elevated water temperature can devastate coral reefs on a large geographic scale. more...

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL6515

16 Samples

Download data: GPR

(Submitter supplied) The declining health of coral reefs worldwide is likely to intensify in response to continued anthropogenic disturbance from coastal development, pollution, and climate change. In response to these stresses, reef-building corals may exhibit bleaching, which marks the breakdown in symbiosis between coral and zooxanthellae. Mass coral bleaching due to elevated water temperature can devastate coral reefs on a large geographic scale. more...

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL6515

10 Samples

Download data: GPR

(Submitter supplied) This experiment assessed the natural gene expression variation present between colonies of the Indo-Pacific reef-building coral Acropora millepora, and additionally explored whether gene expression differed between two different intron haplotypes according to intron 4-500 in a carbonic anhydrase homolog. This study found no correspondence between host genotype and transcriptional state, but found significant intercolony variation, detecting 488 representing unique genes or 17% of the total genes analyzed. more...

Organism:

Acropora millepora

Type:

Expression profiling by array

Platform:

GPL6941

22 Samples

Download data: GPR

(Submitter supplied) We used the Illumina RNAseq approach to study the effects of acute exposure to elevated CO2 on gene expression in primary polyps of Acropora millepora

Organism:

Acropora millepora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL14749

9 Samples

Download data: TXT

(Submitter supplied) Thermal history plays a role in the response of corals to subsequent heat stress. Prior heat stress can have a profound impact on later thermal tolerance, but the mechanism for this plasticity is not clear. The understanding of gene expression changes behind physiological acclimatization is critical in forecasts of coral health in impending climate change scenarios. Acropora millepora fragments were preconditioned to sublethal bleaching threshold stress for a period of 10 days; this prestress conferred bleaching resistance in subsequent thermal challenge, in which non-preconditioned coral bleached. more...

Organism:

Acropora millepora

Type:

Expression profiling by array

Platform:

GPL6941

45 Samples

Download data: GPR

(Submitter supplied) We compared the effect of acute (Moya et al 2012) and chronic exposure to elevated pCO2 on gene expression in primary polyps of Acropora millepora

Organism:

Acropora millepora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL14749

6 Samples

Download data: TXT

(Submitter supplied) Short title: Coral Meta-Transcriptomics Reveal Pollutant Stress Background: Corals represent symbiotic meta-organisms that require harmonization among the coral animal, photosynthetic zooxanthellae and associated microbes to survive environmental stresses. We investigated integrated-responses among coral and zooxanthellae in the scleractinian coral Acropora formosa in response to an emerging marine pollutant, the munitions constituent, 1,3,5-trinitro-1,3,5 triazine (RDX; 5 day exposures to 0 (control), 0.5, 0.9, 1.8, 3.7, and 7.2 mg/L, measured in seawater). more...

Organism:

Acropora formosa

Type:

Expression profiling by array

Platform:

GPL18467

13 Samples

Download data: TXT

(Submitter supplied) The metabolic bases of the interaction between the coral Acropora millepora and its dinoflagellate symbiont were investigated by comparing gene expression levels under light and dark conditions at the whole transcriptome level. Among the differentially expressed genes identified, a suite of genes involved in cholesterol transport was found to be up-regulated under light conditions, confirming the significance of this compound in the coral symbiosis. more...

Organism:

Acropora millepora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL14749

6 Samples

Download data: TXT

(Submitter supplied) Dimethylsufoniopropionate (DMSP) is an important and abundant organic sulfur compound and an important substrate for marine bacterioplankton. The Roseobacter clade of marine alpha-proteobacteria, including Silicibacter pomeroyi strain DSS3, are known to be a key phylogenetic group involved in DMSP degradaton. The fate of DMSP has important implications for the global sulfur cycle, but the genes involved in this process and their regulation are largely unknown. more...

Organism:

Ruegeria pomeroyi; Ruegeria pomeroyi DSS-3

Type:

Expression profiling by array

Platform:

GPL4067

24 Samples

Download data

(Submitter supplied) Scleractinian corals acquire autotrophic nutrients via the photosynthetic activity of their symbionts and the subsequent transfer of photosynthates. Zooplankton predation by the animal (heterotrophy) is an additional food source. Under stress events, corals loose their symbionts, a phenomena known as bleaching, which eventually leads to starvation, unless corals increase their heterotrophic capacities. more...

Organism:

Stylophora pistillata

Type:

Expression profiling by array

Platform:

GPL17270

18 Samples

Download data: TXT

(Submitter supplied) This studies investigates the acute response of the coral Acropora millepora to two immunogenes: MDP (bacterial mimic) and pIC (viral mimic). Three members of the GiMAP familly were found to respond strongly to MDP treatment, showing analalogy to the immune response in vertebrates and plants.

Organism:

Acropora millepora

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17073

12 Samples

Download data: TXT

(Submitter supplied) Background Coral reefs are expected to be severely impacted by rising seawater temperatures associated with climate change. This study used cDNA microarrays to investigate transcriptional effects of thermal stress in embryos of the coral Montastraea faveolata. Embryos were exposed to 27.5C, 29.0C, and 31.5C directly after fertilization. Differences in gene expression were measured after 12 and 48 hours. more...

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL8248

18 Samples

Download data: MEV

(Submitter supplied) Transcriptional profiling of gene responses in liver in the coral reef fish Pomacentrus moluccensis in response to different types of environmental stress: cold, heat, hypoxic and hyposmotic shock. Goal was to determine the common effects of different types of environmental stress on gene expression as well as responses unique to different stressors. Abstract from Kassahn et al. BMC Genomics (2007) 8:358 Background While our understanding of the importance of transcriptional regulation for biological function is continuously growing, we still know comparatively little about how environmentally-induced stress affects gene expression in vertebrates and how consistent transcriptional stress responses are across different types of environmental stress. more...

Organism:

Pomacentrus moluccensis; Danio rerio

Type:

Expression profiling by array

Platform:

GPL3365

59 Samples

Download data: SPOT, TIFF

(Submitter supplied) For sessile organisms at high risk from climate change, phenotypic plasticity can be critical to rapid acclimation. Epigenetic markers like DNA methylation are hypothesized as mediators of plasticity; methylation is associated with the regulation of gene expression, can change in response to ecological cues, and is a proposed basis for the inheritance of acquired traits. Within reef-building corals, gene body methylation can change in response to ecological stressors. more...

Organism:

Acropora selago; Acropora millepora; Acropora selago x Acropora millepora

Type:

Methylation profiling by high throughput sequencing

Platforms:

GPL34077 GPL34076 GPL33727

16 Samples

Download data: COV