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Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses)

2010Journal article Restricted access
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dc.contributor.authorShaw, A. J.
dc.contributor.authorCox, C. J.
dc.contributor.authorBuck, W. R.
dc.contributor.authorDevos, N.
dc.contributor.authorBuchanan, A. M.
dc.contributor.authorCave, L.
dc.contributor.authorSeppelt, R.
dc.contributor.authorShaw, B.
dc.contributor.authorLarraín, J.
dc.contributor.authorAndrus, R.
dc.contributor.authorGreilhuber, J.
dc.contributor.authorTemsch, E. M.
dc.date.accessioned2014-10-27T14:33:06Z
dc.date.available2014-10-27T14:33:06Z
dc.date.issued2010
dc.date.updated2014-10-24T09:53:58Z
dc.description.abstractPremise of the study : The Sphagnopsida, an early-diverging lineage of mosses (phylum Bryophyta), are morphologically and ecologically unique and have profound impacts on global climate. The Sphagnopsida are currently classifi ed in two genera, Sphagnum (peat mosses) with some 350 – 500 species and Ambuchanania with one species. An analysis of phylogenetic relationships among species and genera in the Sphagnopsida were conducted to resolve major lineages and relationships among species within the Sphagnopsida. Methods : Phylogenetic analyses of nucleotide sequences from the nuclear, plastid, and mitochondrial genomes (11 704 nucleotides total) were conducted and analyzed using maximum likelihood and Bayesian inference employing seven different substitution models of varying complexity. Key results : Phylogenetic analyses resolved three lineages within the Sphagnopsida: (1) Sphagnum sericeum , (2) S. inretortum plus Ambuchanania leucobryoides , and (3) all remaining species of Sphagnum . Sister group relationships among these three clades could not be resolved, but the phylogenetic results indicate that the highly divergent morphology of A. leucobryoides is derived within the Sphagnopsida rather than plesiomorphic. A new classifi cation is proposed for class Sphagnopsida, with one order (Sphagnales), three families, and four genera. Conclusions : The Sphagnopsida are an old lineage within the phylum Bryophyta, but the extant species of Sphagnum represent a relatively recent radiation. It is likely that additional species critical to understanding the evolution of peat mosses await discovery, especially in the southern hemisphere.por
dc.identifier.citationShaw, A.J.; Cox, C.J.; Buck, W.R.; Devos, N.; Buchanan, A.M.; Cave, L.; Seppelt, R.; Shaw, B.; Larraín, J.; Andrus, R.; Greilhuber, J.; Temsch, E.M. Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses), American Journal of Botany, 97, 9, 1511-15, 2010.por
dc.identifier.doihttp://dx.doi.org/doi:10.3732/ajb.1000055
dc.identifier.issn0002-9122
dc.identifier.urihttp://hdl.handle.net/10400.1/5528
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherBotanical Society of America: AJBpor
dc.subjectAmbuchananiapor
dc.subjectBryophyte phylogenypor
dc.subjectLand plant phylogenypor
dc.subjectPeat mossespor
dc.subjectSphagnopsidapor
dc.subjectSphagnumpor
dc.titleNewly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses)por
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage15por
oaire.citation.issue9por
oaire.citation.startPage1511por
oaire.citation.titleAmerican Journal of Botanypor
oaire.citation.volume97por
person.familyNameCox
person.givenNameCymon
person.identifier.ciencia-id6B15-9771-1D04
person.identifier.orcid0000-0002-4927-979X
person.identifier.ridD-1303-2012
person.identifier.scopus-author-id7402112716
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication82c3689c-60b6-440d-9d7b-49e6dbd6861b
relation.isAuthorOfPublication.latestForDiscovery82c3689c-60b6-440d-9d7b-49e6dbd6861b

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