Blue mussels of the Mytilus edulis species complex from South America: The application of species delimitation models to DNA sequence variation

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dc.contributor.authorOyarzun, Pablo A.
dc.contributor.authorToro, Jorge E.
dc.contributor.authorNuñe, José
dc.contributor.authorSuarez-Villota, Elkin Y.
dc.contributor.authorGardner, Jonathan P.A.
dc.date.accessioned2024-04-15T20:59:50Z
dc.date.available2024-04-15T20:59:50Z
dc.date.issued2021-09
dc.descriptionINDEXACIÓN: SCOPUS.
dc.description.abstractSmooth-shelled blue mussels, Mytilus spp., have a worldwide antitropical distribution and are ecologically and economically important. Mussels of the Mytilus edulis species complex have been the focus of numerous taxonomic and biogeographical studies, in particular in the Northern hemisphere, but the taxonomic classification of mussels from South America remains unclear. The present study analysed 348 mussels from 20 sites in Argentina, Chile, Uruguay and the Falkland Islands on the Atlantic and Pacific coasts of South America. We sequenced two mitochondrial locus, Cytochrome c Oxidase subunit I (625 bp) and 16S rDNA (443 bp), and one nuclear gene, ribosomal 18S rDNA (1770 bp). Mitochondrial and nuclear loci were analysed separately and in combination using maximum likelihood and Bayesian inference methods to identify the combination of the most informative dataset and model. Species delimitation using five different models (GMYC single, bGMYC, PTP, bPTP and BPP) revealed that the Mytilus edulis complex in South America is represented by three species: native M. chilensis, M. edulis, and introduced Northern Hemisphere M. galloprovincialis. However, all models failed to delimit the putative species Mytilus platensis. In contrast, however, broad spatial scale genetic structure in South America using Geneland software to analyse COI sequence variation revealed a group of native mussels (putatively M. platensis) in central Argentina and the Falkland Islands. We discuss the scope of species delimitation methods and the use of nuclear and mitochondrial genetic data to the recognition of species within the Mytilus edulis complex at regional and global scales. © 2021 Oyarzún et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.identifier.citationPLoS ONE, Volume 16, Issue 9 September, September 2021, Article number e0256961
dc.identifier.doi10.1371/journal.pone.0256961
dc.identifier.issn1932-6203
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/55992
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.licenseCC BY 4.0 DEED Atribución 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectAnimals
dc.subjectArgentina
dc.subjectBase Sequence
dc.subjectBayes Theorem
dc.subjectChile
dc.subjectDNA, Ribosomal
dc.subjectElectron Transport Complex IV
dc.subjectFalkland Islands
dc.subjectFemale
dc.subjectGenes, Mitochondrial
dc.subjectGenetic Loci
dc.subjectGenetic Variation
dc.subjectHaplotypes
dc.subjectMytilus edulis
dc.subjectPhylogeny
dc.subjectSpecies Specificity
dc.subjectUruguay
dc.titleBlue mussels of the Mytilus edulis species complex from South America: The application of species delimitation models to DNA sequence variation
dc.typeArtículo
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