Molecular data reveal the presence of three <i>Plocamium</i> Lamouroux species with complex patterns of distribution in Southern Chile

Simple item page
dc.contributor.authorMontecinos, Alejandro E.
dc.contributor.authorHuanel, Oscar R.
dc.contributor.authorRamirez, Maria E.
dc.contributor.authorGuillemin, Marie-Laure
dc.date.accessioned2025-01-20T23:55:46Z
dc.date.available2025-01-20T23:55:46Z
dc.date.issued2021
dc.description.abstractPlocamium Lamouroux is a widespread genus for which 45 species are currently recognized. However, classical taxonomy based only on morphological characters, is problematic within this genus. The use of molecular tools has uncovered cryptic genetic species, mistakenly grouped under the name of morphological species that are common and widespread (induding the generitype Plocamium cartilagineum (Linnaeus) P.S.Dixon). The aim of this work was to evaluate the species diversity of Plocamium in Southern Chile. For this purpose, three independent molecular markers were sequenced in samples collected from seven populations located between 41 degrees S and 54 degrees S. The species diversity was evaluated using phylogenetic reconstructions and two independent methods for species delimitation (ABGD and GMYC). The outcomes of each method were congruent, suggesting the presence of three species in Southern Chile. One species, named Plocamium sp. 1, is restricted to Punta Guaban, the only locality sampled north of the biogeographic barrier of the 42 degrees S. The other two species, Plocamium sp. 2 and 3 are distributed in sympatry in Patagonia and Tierra del Fuego. The three Chilean species form a Bade phylogenetically close to sequences obtained from New Zealand and Australia and a divergence along the coasts of Chile after past transoceanic dispersal is proposed. We propose that divergence in glacial microrefugia could have subsequently happen in the southern part of the coast, this hypothesis being supported by the strong impact of glacial maxima on population dynamics, especially in Plocamium sp. 3.
dc.fuente.origenWOS
dc.identifier.doi10.5252/cryptogamie-algologie2021v42a1
dc.identifier.eissn1776-0984
dc.identifier.issn0181-1568
dc.identifier.urihttps://doi.org/10.5252/cryptogamie-algologie2021v42a1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95110
dc.identifier.wosidWOS:000617969600001
dc.issue.numero1
dc.language.isoen
dc.pagina.final19
dc.pagina.inicio1
dc.revistaCryptogamie algologie
dc.rightsacceso restringido
dc.subjectSpecies delimitation
dc.subjectgenetic species
dc.subjectlong-distance dispersal
dc.subjectspeciation
dc.subjectRhodophyta
dc.subjectred algae
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleMolecular data reveal the presence of three <i>Plocamium</i> Lamouroux species with complex patterns of distribution in Southern Chile
dc.typeartículo
dc.volumen42
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas