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dc.contributor.author
Salomón, Luciana
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dc.contributor.author
Nicola, Marcela Viviana
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dc.contributor.author
Kandziora, Martha
dc.contributor.author
Kolář, Filip
dc.contributor.author
Sklenář, Petr
dc.date.available
2021-12-21T13:21:20Z
dc.date.issued
2021-10
dc.identifier.citation
Salomón, Luciana; Nicola, Marcela Viviana; Kandziora, Martha; Kolář, Filip; Sklenář, Petr; Center of origin and evolutionary history in the high Andean genus Oritrophium (Astereae, Asteraceae); Springer; Alpine Botany; 10-2021; 1-17
dc.identifier.issn
1664-2201
dc.identifier.uri
http://hdl.handle.net/11336/149092
dc.description.abstract
Páramo, the most species-rich tropical mountain ecosystem, is relatively well-researched in terms of the diversity and evolutionary sources of its flora, yet we know very little about the diversification within this environment. This study aims to unravel the evolutionary history of Oritrophium, an endemic genus of alpine habitats in North and South America, with a disjunct and bi-modal distribution of its species diversity. We aim to disentangle the center of origin and radiation of the genus, and mechanisms structuring its genetic diversity at inter- and intra-specific level. We sampled 19 species (85% from the total) and extended the sampling at population level for the two widely distributed species, O.limnophilum and O.peruvianum, comprising 19 and 24 populations, respectively. Using nuclear ribosomal internal transcribed spacer (ITS) and trnL-trnF chloroplast DNA region, we reconstructed dated phylogenies to test the monophyly of the genus and unravel possible historical forces underlying its diversification. We also performed an ancestral area estimation to reconstruct the biogeographic history of the genus. At the population level, we constructed haplotype networks and run spatial analyses of molecular variance to explore possible mechanisms that operate on structuring the diversity at intraspecific level. Oritrophium resulted polyphyletic, with two species being closely related to Erigeron and three other species ambiguously related to Erigeron, Diplostephium, Linochilus, and/or Hinterhubera. The remaining 14 species formed a clade, Oritrophiums.s., that likely originated during the Early Pliocene in the Andes of northwestern Bolivia to southern Ecuador, the center of the genus' diversity. The group likely diversified with the emergence of the Páramo during the Late Pliocene and further dispersed mainly from South-to-North in the Pleistocene. This migration involved both, long-distance dispersal from the Central Andes to Mexico and gradual migration of the species along the Andes. Accordingly, Oritrophium s.s. appears as the first record of a long-distance dispersal from the Páramo of South America to North America. The dispersal pattern within South America was mirrored by the intraspecific population diversity and structure of the investigated species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ANDES
dc.subject
COMPOSITAE
dc.subject
DNA SEQUENCES
dc.subject
LONG-DISTANCE DISPERSAL
dc.subject
PÁRAMO
dc.subject
RECENT RADIATION
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Center of origin and evolutionary history in the high Andean genus Oritrophium (Astereae, Asteraceae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-12-13T18:48:55Z
dc.identifier.eissn
1664-221X
dc.journal.pagination
1-17
dc.journal.pais
Suiza
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dc.description.fil
Fil: Salomón, Luciana. Karlova Univerzita (cuni); República Checa
dc.description.fil
Fil: Nicola, Marcela Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina
dc.description.fil
Fil: Kandziora, Martha. Karlova Univerzita (cuni); República Checa
dc.description.fil
Fil: Kolář, Filip. Karlova Univerzita (cuni); República Checa. Czech Academy of Sciences. Institute of Botany; República Checa
dc.description.fil
Fil: Sklenář, Petr. Karlova Univerzita (cuni); República Checa
dc.journal.title
Alpine Botany
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s00035-021-00271-w
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