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Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator

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dc.contributor.author Lopes, Fernando
dc.contributor.author Oliveira, Larissa R.
dc.contributor.author Beux, Yago
dc.contributor.author Kessler, Amanda
dc.contributor.author Cardenas Alayza, Susana
dc.contributor.author Majluf, Patricia
dc.contributor.author Páez-Rosas, Diego
dc.contributor.author Chaves, Jaime
dc.contributor.author Crespo, Enrique
dc.contributor.author Brownell, Robert L. Jr
dc.contributor.author Baylis, Alastair M. M.
dc.contributor.author Sepúlveda, Maritza
dc.contributor.author Franco-Trecu, Valentina
dc.contributor.author Loch, Carolina
dc.contributor.author Robertson, Bruce C.
dc.contributor.author Peart, Claire R.
dc.contributor.author Wolf, Jochen B. W.
dc.contributor.author Bonatto, Sandro L.
dc.date.accessioned 2023-06-12T16:25:56Z
dc.date.available 2023-06-12T16:25:56Z
dc.date.issued 2023
dc.identifier.uri https://hdl.handle.net/20.500.12866/13629
dc.description.abstract Hybridization is widespread and constitutes an important source of genetic variability and evolution. In animals, its role in generating novel and independent lineages (hybrid speciation) has been strongly debated, with only a few cases supported by genomic data. The South American fur seal (SAfs) Arctocephalus australis is a marine apex predator of Pacific and Atlantic waters, with a disjunct set of populations in Peru and Northern Chile [Peruvian fur seal (Pfs)] with controversial taxonomic status. We demonstrate, using complete genome and reduced representation sequencing, that the Pfs is a genetically distinct species with an admixed genome that originated from hybridization between the SAfs and the Galapagos fur seal (Arctocephalus galapagoensis) ~400,000 years ago. Our results strongly support the origin of Pfs by homoploid hybrid speciation over alternative introgression scenarios. This study highlights the role of hybridization in promoting species-level biodiversity in large vertebrates. en_US
dc.language.iso eng
dc.publisher American Association for the Advancement of Science
dc.relation.ispartofseries Science Advances
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Genomic en_US
dc.subject Homoploid Hybrid en_US
dc.subject Marine Mammal en_US
dc.subject Apex Predator en_US
dc.subject.mesh Genómica
dc.subject.mesh Fauna Marina
dc.title Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1126/sciadv.adf6601
dc.relation.issn 2375-2548


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