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Genetic diversity in the Andes: variation within and between the South American species of Oreobolus R. Br. (Cyperaceae)

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dc.creatorGómez-Gutiérrez, María Camilaspa
dc.creatorPennington, R. Tobyspa
dc.creatorNeaves, Linda E.spa
dc.creatorMilne, Richard I.spa
dc.creatorMadriñán, Santiagospa
dc.creatorRichardson, James-Edwardspa
dc.date.accessioned2020-05-26T00:07:46Z
dc.date.available2020-05-26T00:07:46Z
dc.date.created2017spa
dc.description.abstractThis study examines genetic relationships among and within the South American species of Oreobolus that span the temperate and tropical Andes hotspots and represent a good case study to investigate diversification in the Páramo. A total of 197 individuals covering the distributional range of most of these species were sequenced for the nuclear ribosomal internal transcribed spacer (ITS) and 118 individuals for three chloroplast DNA regions (trnL-F, trnH-psbA and rpl32-trnL). Haplotype networks and measures of genetic diversity were calculated at different taxonomic and geographic levels. To test for possible geographic structure, a spatial analysis of molecular variance (SAMOVA) was undertaken and species relationships were recovered using a coalescent-based approach. Results indicate complex relationships among the five South American species of Oreobolus, which are likely to have been confounded by incomplete lineage sorting, though hybridization cannot be completely discarded as an influence on genetic patterns, particularly among the northern populations of O. obtusangulus and O. cleefii. We report a case of cryptic speciation in O. obtusangulus where northern and southern populations of morphologically similar individuals are genetically distinct in all analyses. At the population level, the genetic evidence is consistent with contraction and expansion of islands of Páramo vegetation during the climatic fluctuations of the Quaternary, highlighting the role of these processes in shaping modern diversity in that ecosystem. © 2017, Swiss Botanical Society.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1007/s00035-017-0192-z
dc.identifier.issn16642201
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/24030
dc.language.isoengspa
dc.publisherBirkhauser Verlag AGspa
dc.relation.citationEndPage170
dc.relation.citationIssueNo. 2
dc.relation.citationStartPage155
dc.relation.citationTitleAlpine Botany
dc.relation.citationVolumeVol. 127
dc.relation.ispartofAlpine Botany, ISSN:16642201, Vol.127, No.2 (2017); pp. 155-170spa
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85028962298&doi=10.1007%2fs00035-017-0192-z&partnerID=40&md5=fa91fbbc9f929fd019098fd634fb0ca4spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subject.keywordBiogeographyspa
dc.subject.keywordChloroplastspa
dc.subject.keywordGenetic variationspa
dc.subject.keywordHybridizationspa
dc.subject.keywordMonocotyledonspa
dc.subject.keywordMorphologyspa
dc.subject.keywordPhylogenyspa
dc.subject.keywordQuaternaryspa
dc.subject.keywordSpatial analysisspa
dc.subject.keywordSpeciation (biology)spa
dc.subject.keywordTemperate environmentspa
dc.subject.keywordTropical environmentspa
dc.subject.keywordAndesspa
dc.subject.keywordAveiro [portugal]spa
dc.subject.keywordParamosspa
dc.subject.keywordPortugalspa
dc.subject.keywordCyperaceaespa
dc.subject.keywordOreobolusspa
dc.subject.keywordOreobolus obtusangulusspa
dc.subject.keywordAndesspa
dc.subject.keywordBiogeographyspa
dc.subject.keywordHybridizationspa
dc.subject.keywordLineage sortingspa
dc.subject.keywordPáramospa
dc.subject.keywordSpecies treespa
dc.titleGenetic diversity in the Andes: variation within and between the South American species of Oreobolus R. Br. (Cyperaceae)spa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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