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Phylogenetic relationships among Sphagnum sections: Hemitheca, Isocladus, and Subsecunda

2004Journal article Restricted access
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dc.contributor.authorShaw, J. A.
dc.contributor.authorCox, C. J.
dc.contributor.authorBoles, S. B.
dc.date.accessioned2014-10-24T12:59:16Z
dc.date.available2014-10-24T12:59:16Z
dc.date.issued2004
dc.date.updated2014-10-24T10:02:26Z
dc.description.abstractSphagnum macrophyllum, S. pylaesii, and S. cyclophyllum are morphologically atypical in the genus Sphagnum and their systematic placement has been a source of controversy. The first is generally classified in the mono-specific section Isocladus, and the second as section Hemitheca. Sphagnum cyclophyllum is classified in the section Subsecunda, but several authors have hypothesized a close relationship between all three species. Nucleotide sequences from eight nuclear and chloroplast loci were obtained to test hypotheses about relationships among these taxa. Phylogenetic analyses resolve these species (along with S. microcarpum, closely related to S. cyclophyllum) in a well-supported monophyletic group within the section Subsecunda. Sphagnum macrophyllum is sister to S. cyclophyllum, S. microcarpum, and S. pylaesii. Sphagnum cyclophyllum and S. microcarpum form a clade that is sister to S. pylaesii. Two mutually monophyletic groups of populations are resolved within S. pylaesii, one including the European populations and the other including populations from eastern North America and South America. The European populations are almost identical at the nucleotide sequence level whereas the American populations are genetically diverse. Short, delicate pseudopodia; exceptionally large opercula; and an absence or near absence of pseudostomata appear to be synapomorphies for the clade containing S. macrophyllum, S. microcarpum, S. cyclophyllum, and S. pylaesii.por
dc.identifier.citationShaw, J.A.; Cox, C.J.; Boles, S.B.Phylogenetic relationships among Sphagnum sections: Hemitheca, Isocladus, and Subsecunda, Bryologist, 107, 2, 189-196, 2004.por
dc.identifier.issn0007-2745
dc.identifier.urihttp://hdl.handle.net/10400.1/5484
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Bryological and Lichenological Societypor
dc.relation.publisherversionhttp://www.jstor.org/discover/10.2307/3244843?uid=3738880&uid=2134&uid=2&uid=70&uid=4&sid=21105018851083por
dc.subjectBryophyte phylogeneticspor
dc.subjectPhylogeographypor
dc.subjectSphagnum cyclophyllumpor
dc.subjectSphagnum macrophyllum,por
dc.subjectSphagnum pylaesiipor
dc.subjectSphagnum section Hemithecapor
dc.subjectSphagnum section Isocladuspor
dc.subjectSphagnum section Subsecundapor
dc.titlePhylogenetic relationships among Sphagnum sections: Hemitheca, Isocladus, and Subsecundapor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage196por
oaire.citation.issue2por
oaire.citation.startPage189por
oaire.citation.titleBryologistpor
oaire.citation.volume107por
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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