Molecular evidence for a new endemic species of <i>Acartia</i> (Copepoda, Calanoida) from the Southeast Pacific coast

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dc.contributor.authorMesas, Andres
dc.contributor.authorAguilera, Victor M.
dc.contributor.authorGonzalez, Carolina E.
dc.contributor.authorGiesecke, Ricardo
dc.contributor.authorEscribano, Ruben
dc.contributor.authorVargas, Cristian A.
dc.date.accessioned2025-01-20T16:16:03Z
dc.date.available2025-01-20T16:16:03Z
dc.date.issued2024
dc.description.abstractThe loss of biodiversity in marine populations is one of the consequences of the increased events of extreme environmental conditions in the oceans, which can condition the persistence of populations to future scenarios of climate change. Therefore, it is extremely necessary to explore and monitor the genetic diversity of natural populations. In the Southeast Pacific Ocean (SEPO), specifically on the coast of Chile, the presence of the copepod Acartia tonsa has been indicated solely using morphological evidence, due to the absence of genetic information. In the present work, the genetic diversity, population structure and phylogenetic position within the genus Acartia, of populations identified morphologically as A. tonsa, was evaluated by amplification of the mitochondrial cytochrome c oxidase subunit I and nuclear marker 18 s. Our results showed that the populations identified as A. tonsa correspond to a new monophyletic group endemic to SEPO (GMYC = 1.00; PTP = 0.95). The populations showed moderate to high genetic diversity with an incipient structuring between populations and biogeographic zones. Our results suggest that despite the homogenizing effect of the Humboldt Current, isolation by distance and contrasting environmental conditions at different geographic scales have an important influence on the genetic diversity of zooplankton in the SEPO region.
dc.fuente.origenWOS
dc.identifier.doi10.1038/s41598-024-62080-5
dc.identifier.issn2045-2322
dc.identifier.urihttps://doi.org/10.1038/s41598-024-62080-5
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90527
dc.identifier.wosidWOS:001235693100058
dc.issue.numero1
dc.language.isoen
dc.revistaScientific reports
dc.rightsacceso restringido
dc.subjectPhylogeny
dc.subjectCOI
dc.subject18 s
dc.subjectPopulation genetics
dc.subjectNew endemic species
dc.subjectAcartia tonsa
dc.subjectCryptic species
dc.subjectCopepods
dc.subjectSoutheast Pacific Ocean
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.titleMolecular evidence for a new endemic species of <i>Acartia</i> (Copepoda, Calanoida) from the Southeast Pacific coast
dc.typeartículo
dc.volumen14
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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