GEO DataSets

(Submitter supplied) Given the overwhelming evidence that symbiont genotypes differentially affect host processes such as growth, bleaching susceptibility, and nutrient acquisition, we set out to measure gene expression differences in fragments of Montastraea faveolata harboring two different clades of Symbiodinium. On the reefs near Puerto Morelos, México, colonies of M. faveolata are known to shift algal symbiont clade with depth, often associating with clade A at the top, clade B in the middle, and clade C near the bottom of the colony. more...

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL7317

18 Samples

Download data: MEV

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

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL7317

33 Samples

Download data: MEV

(Submitter supplied) A mutualistic relationship between reef-building corals and endosymbiotic algae (Symbiodinium spp.) forms the basis for the existence of coral reefs. Genotyping tools for Symbiodinium spp. have added a new level of complexity to studies concerning cnidarian growth, nutrient acquisition, and stress. For example, the response of the coral holobiont to thermal stress is connected to the host-Symbiodinium genotypic combination, as different partnerships can have different bleaching susceptibilities. more...

Organism:

Orbicella faveolata

Type:

Expression profiling by array

Platform:

GPL7317

15 Samples

Download data: MEV, 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) Coral reefs are based on the symbiotic relationship between corals and photosynthetic dinoflagellates of the genus Symbiodinium. We followed gene expression of coral larvae of Acropora palmata and Montastraea faveolata after exposure to Symbiodinium strains that differed in their ability to establish symbioses. We show that the coral host transcriptome remains almost unchanged during infection by competent symbionts, but is massively altered by symbionts that fail to establish symbioses. more...

Organism:

Acropora palmata; Orbicella faveolata

Type:

Expression profiling by array

Platforms:

GPL8208 GPL8215

36 Samples

Download data: MEV

(Submitter supplied) Using transcriptomics, we show that Symbiodinium acclimation to elevated temperature involves up-regulated expression of meiosis genes followed by up-regulated expression of numerous reactive oxygen species scavenging genes and molecular chaperone genes. Our study connects Symbiodinium transcriptional regulation with physiological heat stress responses as well as known bleaching responses of corals harboring these same Symbiodinium. more...

Organism:

Cladocopium sp. C1

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20890

48 Samples

Download data: FASTA, TXT, XLS

(Submitter supplied) Microarrays consist of PCR-amplified cDNAs from M. faveolata. 1,314 PCR-amplified cDNAs were spotted in duplicate on poly-lysine-coated slides yielding a microarray with 2,628 total features. cDNAs were chosen from EST libraries described in (Schwarz et al., 2008). To annotate the cDNAs, we performed a BLASTx analysis (E-value cut-off 1e-5) against the GenBank non-redundant DNA and protein database (nr).

Organism:

Orbicella faveolata

1 Series

18 Samples

Download data: TXT

(Submitter supplied) Microarrays consist of PCR-amplified cDNAs from A. palmata. 2,055 PCR-amplified cDNAs were spotted in duplicate on poly-lysine-coated slides yielding a microarray with 4,110 total features. cDNAs were chosen from EST libraries described in (Schwarz et al., 2008). To annotate the cDNAs, we performed a BLASTx analysis (E-value cut-off 1e-5) against the GenBank non-redundant DNA and protein database (nr).

Organism:

Acropora palmata

1 Series

18 Samples

Download data: TXT

(Submitter supplied) Despite the ecological significance of the relationship between reef-building corals and intracellular photosynthetic dinoflagellates of the genus Symbiodinium, very little is known about the molecular mechanisms involved in the establishment of the relationship. Indeed, microarray-based analyses point to the conclusion that host gene expression is largely or completely unresponsive during the establishment of symbiosis with a competent strain of Symbiodinium. more...

Organism:

Acropora digitifera

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21348

16 Samples

Download data: TXT

(Submitter supplied) Despite their early evolutionary divergence, reef-building corals exhibit complex circadian responses to diurnal, lunar and annual changes in the conditions around them. Understanding circadian regulation in reef-building corals is, however, complicated by the presence of photosynthetic endosymbionts that have a profound physiochemical influence on the intracellular environment. How corals tune their animal-based clock machinery to respond to external cues while at the same time responding to internal physiological changes imposed by the symbiont is not clear. more...

Organism:

Acropora millepora

Type:

Expression profiling by array

Platform:

GPL6941

72 Samples

Download data: GPR

(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) Coral reefs are declining globally. Temperature anomalies disrupt coral-algal symbioses at the molecular level, causing bleaching and mortality events. In terrestrial mutualisms, diversity in pairings of host and symbiont individuals (genotypes) results in ecologically and evolutionarily relevant stress response differences. The extent to which such intraspecific diversity provides functional variation in coral-algal systems is unknown. more...

Organism:

Acropora palmata

Type:

Expression profiling by array

Platform:

GPL15393

12 Samples

Download data: PAIR

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

Organism:

Anemonia viridis

Type:

Expression profiling by array

Platform:

GPL10546

18 Samples

Download data: GPR

(Submitter supplied) Transcriptional comparison between endodermal and ectodermal compartment in symbiotic sea anemones Anemonia viridis were analysed in several specimens. We generated an oligonucleotide microarray (2000 selected features), which is to date the only available oligonucleotide array for symbiotic cnidarians. We were able to identify a subset of genes clearly involved in symbiosis.

Organism:

Anemonia viridis

Type:

Expression profiling by array

Platform:

GPL10546

8 Samples

Download data: GPR

(Submitter supplied) Transcriptional comparison between symbiotic and non-symbiotic (bleached) sea anemones Anemonia viridis were analysed in several specimens. We generated an oligonucleotide microarray (2000 selected features), which is to date the only available oligonucleotide array for symbiotic cnidarians. We were able to identify a subset of genes clearly involved in symbiosis.

Organism:

Anemonia viridis

Type:

Expression profiling by array

Platform:

GPL10546

10 Samples

Download data: GPR