Multi-gene analysis of Symbiodinium dinoflagellates: A perspective on rarity, symbiosis, and evolution

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Show simple item record Pochon, Xavier en Putnam, HM en Gates, RD en 2015-06-12T01:38:51Z en 2014 en
dc.identifier.citation PeerJ 2:e394-e394 20 May 2014 en
dc.identifier.issn 2167-8359 en
dc.identifier.uri en
dc.description.abstract Symbiodinium, a large group of dinoflagellates, live in symbiosis with marine protists, invertebrate metazoans, and free-living in the environment. Symbiodinium are functionally variable and play critical energetic roles in symbiosis. Our knowledge of Symbiodinium has been historically constrained by the limited number of molecular markers available to study evolution in the genus. Here we compare six functional genes, representing three cellular compartments, in the nine known Symbiodinium lineages. Despite striking similarities among the single gene phylogenies from distinct organelles, none were evolutionarily identical. A fully concatenated reconstruction, however, yielded a well-resolved topology identical to the current benchmark nr28S gene. Evolutionary rates differed among cellular compartments and clades, a pattern largely driven by higher rates of evolution in the chloroplast genes of Symbiodinium clades D2 and I. The rapid rates of evolution observed amongst these relatively uncommon Symbiodinium lineages in the functionally critical chloroplast may translate into potential innovation for the symbiosis. The multi-gene analysis highlights the potential power of assessing genome-wide evolutionary patterns using recent advances in sequencing technology and emphasizes the importance of integrating ecological data with more comprehensive sampling of free-living and symbiotic Symbiodinium in assessing the evolutionary adaptation of this enigmatic dinoflagellate. en
dc.relation.ispartofseries PeerJ en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title Multi-gene analysis of Symbiodinium dinoflagellates: A perspective on rarity, symbiosis, and evolution en
dc.type Journal Article en
dc.identifier.doi 10.7717/peerj.394 en
pubs.issue 1 en
pubs.volume 2014 en
dc.description.version VoR - Version of Record en en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 475576 en Science en Marine Science en
dc.identifier.eissn 2167-8359 en
pubs.record-created-at-source-date 2015-02-18 en
pubs.dimensions-id 24883254 en

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