Recent diversification in an ancient lineage of Notothenioid fishes (Bovichtus: Notothenioidei)

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dc.contributor.authorNear, Thomas J.
dc.contributor.authorGhezelayagh, Ava
dc.contributor.authorOjeda, F. Patricio
dc.contributor.authorDornburg, Alex
dc.date.accessioned2025-01-23T21:15:26Z
dc.date.available2025-01-23T21:15:26Z
dc.date.issued2019
dc.description.abstractNotothenioids are among the most intensively studied lineages of marine fishes. However, notothenioid research is predominately focused on the approximately 100 species of Antarctic cryonotothenioids. Far less attention is devoted to the non-Antarctic lineages Bovichtidae, Pseudaphritis urvillii, and Eleginops maclovinus, all of which originated prior to the diversification of cryonotothenioid species. Here we utilize DNA sequence data from mitochondrial and nuclear genes, as well as meristic trait morphology to investigate the evolutionary history of Bovichtidae. Bovichtus is the only polytypic lineage of early diverging non-Antarctic notothenioids providing a unique opportunity to contextualize the diversification dynamics of cryonotothenioids with their non-Antarctic relatives. We find strong evidence that species of Bovichtus represent a recent evolutionary radiation with divergence times similar to those estimated among the most closely related species of cryonotothenioids. The divergence in traditional meristic trait morphology among species of Bovichtus is consistent with their phylogenetic relationships. The phylogeny of Bovichtus implies the wide geographic distribution of species in the clade is likely the result of West Wind drift-driven dispersal. The phylogeny and divergence time estimates results reject a hypothesis that species persistence in Bovichtus reflects long periods of evolutionary stasis. Instead, we hypothesize that patterns of extinction and diversification in Bovichtus closely mirror those observed in their Antarctic relatives.
dc.description.funderBingham Oceanographic fund
dc.fuente.origenWOS
dc.identifier.doi10.1007/s00300-019-02489-1
dc.identifier.eissn1432-2056
dc.identifier.issn0722-4060
dc.identifier.urihttps://doi.org/10.1007/s00300-019-02489-1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101087
dc.identifier.wosidWOS:000466390100009
dc.issue.numero5
dc.language.isoen
dc.pagina.final952
dc.pagina.inicio943
dc.revistaPolar biology
dc.rightsacceso restringido
dc.subjectWest Wind drift
dc.subjectHistorical biogeography
dc.subjectNotothenioidei
dc.subjectBovichtidae
dc.subjectAdaptive radiation
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleRecent diversification in an ancient lineage of Notothenioid fishes (Bovichtus: Notothenioidei)
dc.typeartículo
dc.volumen42
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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