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© Artur Scherf
Scanning Electron Microscopy of Red Blood Cell infected by Plasmodium falciparum.
Publication : PLoS genetics

Condition-specific RNA editing in the coral symbiont Symbiodinium microadriaticum

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in PLoS genetics - 28 Feb 2017

Liew YJ, Li Y, Baumgarten S, Voolstra CR, Aranda M

Link to Pubmed [PMID] – 28245292

PLoS Genet. 2017 02;13(2):e1006619

RNA editing is a rare post-transcriptional event that provides cells with an additional level of gene expression regulation. It has been implicated in various processes including adaptation, viral defence and RNA interference; however, its potential role as a mechanism in acclimatization has just recently been recognised. Here, we show that RNA editing occurs in 1.6% of all nuclear-encoded genes of Symbiodinium microadriaticum, a dinoflagellate symbiont of reef-building corals. All base-substitution edit types were present, and statistically significant motifs were associated with three edit types. Strikingly, a subset of genes exhibited condition-specific editing patterns in response to different stressors that resulted in significant increases of non-synonymous changes. We posit that this previously unrecognised mechanism extends this organism’s capability to respond to stress beyond what is encoded by the genome. This in turn may provide further acclimatization capacity to these organisms, and by extension, their coral hosts.

https://www.ncbi.nlm.nih.gov/pubmed/28245292