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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/130332
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dc.contributor.authorDunthorn, Micah-
dc.contributor.authorMassana, Ramon-
dc.contributor.authorBioMarKs Consortium-
dc.contributor.authorStoeck, Thorsten-
dc.date.issued2014-01-
dc.identifierdoi: 10.1093/molbev/msu055-
dc.identifierissn: 0737-4038-
dc.identifiere-issn: 1537-1719-
dc.identifier.citationMolecular Biology and Evolution 31(4): 993-1009 (2014)-
dc.identifier.urihttp://hdl.handle.net/10261/130332-
dc.descriptionDunthorn, Micah ... et al.-- 17 pages, 4 figures, 3 tables, 1 appendix, supplementary material http://mbe.oxfordjournals.org/content/31/4/993/suppl/DC1-
dc.description.abstractNucleotide positions in the hypervariable V4 and V9 regions of the small subunit (SSU)-rDNA locus are normally difficult to align and are usually removed before standard phylogenetic analyses. Yet, with next-generation sequencing data, amplicons of these regions are all that are available to answer ecological and evolutionary questions that rely on phylogenetic inferences. With ciliates, we asked how inclusion of the V4 or V9 regions, regardless of alignment quality, affects tree topologies using distinct phylogenetic methods (including PairDist that is introduced here). Results show that the best approach is to place V4 amplicons into an alignment of full-length Sanger SSU-rDNA sequences and to infer the phylogenetic tree with RAxML. A sliding window algorithm as implemented in RAxML shows, though, that not all nucleotide positions in the V4 region are better than V9 at inferring the ciliate tree. With this approach and an ancestral-state reconstruction, we use V4 amplicons from European nearshore sampling sites to infer that rather than being primarily terrestrial and freshwater, colpodean ciliates may have repeatedly transitioned from terrestrial/freshwater to marine environments. © 2014 The Author-
dc.description.sponsorshipThis work was supported by the Deutsche Forschungsgemeinschaft (DFG, grant DU1319/1-1) to M.D.; DFG (grant STA/860-3) to A.Sta.; European Funding Agencies from the ERAnet program BiodivERsA under the BioMarKs project (grant 2008-6530) to C.dV, T.S., and the BioMarKS Consortium; Carl-Zeiss postdoc grant to A.Sto.; and DFG (grants STO414/3-1 and STO414/3-2) to T.S.-
dc.publisherSociety for Molecular Biology and Evolution-
dc.rightsopenAccess-
dc.subjectCiliophora-
dc.subjectColpodea-
dc.subjectMarine-freshwater transitions-
dc.subjectPhylogenetics-
dc.subjectSSU rDNA-
dc.subjectSSU-
dc.subjectrDNA-
dc.titlePlacing environmental next-generation sequencing amplicons from microbial eukaryotes into a phylogenetic context-
dc.typeartículo-
dc.identifier.doi10.1093/molbev/msu055-
dc.relation.publisherversionhttps://doi.org/10.1093/molbev/msu055-
dc.date.updated2016-03-21T13:48:23Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderGerman Research Foundation-
dc.relation.csicSí-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100001659es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.cerifentitytypePublications-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.openairetypeartículo-
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