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Transcriptomic adaptations to symbiotic life in cnidarians: symbiotic vs bleached Anemonia viridis sea anemones

ABSTRACT: 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(S): Anemonia viridis

PROVIDER: GSE22360 | GEO | 2011/06/01

SECONDARY ACCESSION(S): PRJNA129221

REPOSITORIES: GEO

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Transcriptomic adaptations to symbiotic life in cnidarians: symbiotic vs bleached Anemonia viridis sea anemones

Project description: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. Whole tentacle samples were prepared from 5 symbiotic and 5 bleached specimens. Hybridizations were performed against a single reference (VBl) in a dye-swap experiment.

2011-06-01 | E-GEOD-22360 | biostudies-arrayexpress

Symbiosis in Anemonia viridis sea anemones

Project description:This SuperSeries is composed of the following subset Series: GSE22360: Transcriptomic adaptations to symbiotic life in cnidarians : symbiotic vs bleached Anemonia viridis sea anemones GSE22361: Endoderm- vs ectoderm-specific expression of symbiosis genes in the snakelocks sea anemone Refer to individual Series

2011-06-01 | E-GEOD-22375 | biostudies-arrayexpress

Endoderm- vs ectoderm-specific expression of symbiosis genes in the snakelocks sea anemone

2011-06-01 | GSE22361 | GEO

Endoderm- vs ectoderm-specific expression of symbiosis genes in the snakelocks sea anemone

Project description: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. RNA was extracted from ectodermal or endodermal samples were prepared from 4 symbiotic specimens. Hybridizations were performed against a single reference (VBl) in a dye-swap experiment.

2011-06-01 | E-GEOD-22361 | biostudies-arrayexpress

Anemonia viridis

Project description:Transcriptomic adaptations to symbiotic life in cnidarians: symbiotic vs bleached Anemonia viridis sea anemones

| PRJNA129221 | ENA

Effects of UV and temperature on gene expression in the snakelocks sea anemone

Project description:We monitored gene expression response of the symbiotic sea anemone Anemonia viridis subjected to a thermal and/or UV stress. A symbiosis-dedicated oligonucleotide microarray (2000 selected features) was generated, representing to date the only available oligonucleotide array used for symbiotic cnidarians (GPL10546). We are describing here the expression evolution during the first phase (5 days) of the stress.

2011-11-17 | GSE28566 | GEO

Tissue specific differential expression in response to a thermal stress in the snakelocks sea anemone.

Project description:Differential expression between endodermal (zooxanthellate) and ectodermal tissue layers in the endosymbiotic sea anemone Anemonia viridis has been analyzed for 3 specimens subjected to a thermal stress (+10°C) for a 2 days period. A symbiosis-dedicated oligonucleotide microarray (2000 selected features) was generated, representing to date the only available oligonucleotide array used for symbiotic cnidarians (GPL10546). We are describing here the preferential expression in ectoderm vs endoderm (also called epidermis and gastroderm, respectively) during the time course of this thermal stress. RNA was extracted from ectodermal or endodermal dissected tissues. 3 different symbiotic anemones were subjected to a thermal and UV stress (+10°C), sampled at T0, T12h and T36h. Tissue dissections were carried out from tentacles immediately after sampling. For each sample, dye-swap hybridizations compared T0 and later time points. For each time point, statistical analysis combines the 3 biological replicates.

2011-11-17 | E-GEOD-28576 | biostudies-arrayexpress

Tissue specific differential expression in response to a thermal stress in the snakelocks sea anemone.

2011-11-17 | GSE28576 | GEO

Comparison of gene expression in symbiotic and non-symbiotic cells of Exaiptasia pallida

Project description:Emergence of the symbiotic lifestyle fostered the immense diversity of all ecosystems on Earth, but symbiosis plays a particularly remarkable role in marine ecosystems. Photosynthetic dinoflagellate endosymbionts power reef ecosystems by transferring vital nutrients to their coral hosts. The mechanisms driving this symbiosis, specifically those which allow hosts to discriminate between beneficial symbionts and pathogens, are not well understood. Here, we uncover that host immune suppression is key for dinoflagellate endosymbionts to avoid elimination by the host using a comparative, model systems approach. Unexpectedly, we find that the clearance of non-symbiotic microalgae occurs by non-lytic expulsion (vomocytosis) and not intracellular digestion, the canonical mechanism used by professional immune cells to destroy foreign invaders. We provide evidence that suppression of TLR signalling by targeting the conserved MyD88 adapter protein has been co-opted for this endosymbiotic lifestyle, suggesting that this is an evolutionarily ancient mechanism exploited to facilitate symbiotic associations ranging from coral endosymbiosis to the microbiome of vertebrate guts.

2021-04-14 | GSE140173 | GEO

Project description:Symbiosis in Anemonia viridis sea anemones

| PRJNA127639 | ENA

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