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Article: Ancient DNA from coral-hosted symbiodinium reveal a static mutualism over the last 172 years

TitleAncient DNA from coral-hosted symbiodinium reveal a static mutualism over the last 172 years
Authors
Issue Date2013
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
Citation
PLoS ONE, 2013, v. 8 n. 2, article no. 55057 How to Cite?
AbstractAncient DNA (aDNA) provides powerful evidence for detecting the genetic basis for adaptation to environmental change in many taxa. Among the greatest of changes in our biosphere within the last century is rapid anthropogenic ocean warming. This phenomenon threatens corals with extinction, evidenced by the increasing observation of widespread mortality following mass bleaching events. There is some evidence and conjecture that coral-dinoflagellate symbioses change partnerships in response to changing external conditions over ecological and evolutionary timescales. Until now, we have been unable to ascertain the genetic identity of Symbiodinium hosted by corals prior to the rapid global change of the last century. Here, we show that Symbiodinium cells recovered from dry, century old specimens of 6 host species of octocorals contain sufficient DNA for amplification of the ITS2 subregion of the nuclear ribosomal DNA, commonly used for genotyping within this genus. Through comparisons with modern specimens sampled from similar locales we show that symbiotic associations among several species have been static over the last century, thereby suggesting that adaptive shifts to novel symbiont types is not common among these gorgonians, and perhaps, symbiotic corals in general.
Persistent Identifierhttp://hdl.handle.net/10722/181327
ISSN
2015 Impact Factor: 3.057
2015 SCImago Journal Rankings: 1.395
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBaker, DM-
dc.contributor.authorWeigt, L-
dc.contributor.authorFogel, M-
dc.contributor.authorKnowlton, N-
dc.date.accessioned2013-02-26T07:51:07Z-
dc.date.available2013-02-26T07:51:07Z-
dc.date.issued2013-
dc.identifier.citationPLoS ONE, 2013, v. 8 n. 2, article no. 55057-
dc.identifier.issn1932-6203-
dc.identifier.urihttp://hdl.handle.net/10722/181327-
dc.description.abstractAncient DNA (aDNA) provides powerful evidence for detecting the genetic basis for adaptation to environmental change in many taxa. Among the greatest of changes in our biosphere within the last century is rapid anthropogenic ocean warming. This phenomenon threatens corals with extinction, evidenced by the increasing observation of widespread mortality following mass bleaching events. There is some evidence and conjecture that coral-dinoflagellate symbioses change partnerships in response to changing external conditions over ecological and evolutionary timescales. Until now, we have been unable to ascertain the genetic identity of Symbiodinium hosted by corals prior to the rapid global change of the last century. Here, we show that Symbiodinium cells recovered from dry, century old specimens of 6 host species of octocorals contain sufficient DNA for amplification of the ITS2 subregion of the nuclear ribosomal DNA, commonly used for genotyping within this genus. Through comparisons with modern specimens sampled from similar locales we show that symbiotic associations among several species have been static over the last century, thereby suggesting that adaptive shifts to novel symbiont types is not common among these gorgonians, and perhaps, symbiotic corals in general.-
dc.languageeng-
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action-
dc.relation.ispartofPLoS ONE-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleAncient DNA from coral-hosted symbiodinium reveal a static mutualism over the last 172 yearsen_US
dc.typeArticleen_US
dc.identifier.emailBaker, DM: dmbaker@hku.hk-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1371/journal.pone.0055057-
dc.identifier.pmid23405111-
dc.identifier.pmcidPMC3566211-
dc.identifier.scopuseid_2-s2.0-84873530470-
dc.identifier.hkuros218920-
dc.identifier.volume8-
dc.identifier.issue2-
dc.identifier.spagearticle no. 55057-
dc.identifier.epagearticle no. 55057-
dc.identifier.isiWOS:000315153400055-
dc.publisher.placeUnited States-

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