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Are There Barriers Separating the Pink River Dolphin Populations (Inia boliviensis, Iniidae, Cetacea) within the Mamoré–Iténez River Basins (Bolivia)? An Analysis of Its Genetic Structure by Means of Mitochondrial and Nuclear DNA Markers

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dc.creatorMartínez Aguero, Magdalena Maríaspa
dc.creatorRuiz-García, Manuelspa
dc.creatorEscobar-Armel Pablospa
dc.creatorGaviria Blanco, Magda Milenaspa
dc.creatorÁlvarez, Dianaspa
dc.creatorPinedo, Myreyaspa
dc.creatorMark Shostell, Josephspa
dc.date.accessioned2025-01-26T18:37:56Z
dc.date.available2025-01-26T18:37:56Z
dc.date.created2024-08-01spa
dc.date.issued2024-08-01spa
dc.descriptionThe pink river dolphin, or bufeo, is one of the dolphins which lives in the rivers of the Orinoco and Amazon basins in South America. The Bolivian bufeo population is considered a differentiated species (Inia boliviensis) from the Amazon and Orinoco species (Inia geoffrensis). Until now, no study has completed an extensive population genetics analysis of the bufeo in Bolivian rivers. We analyzed 82 bufeos from different rivers from the Mamoré and Iténez (Guaporé) river basins for the mt control region (CR), nuclear microsatellites, and DQB-1 gene sequences to determine if the inner rapids of these Bolivian river basins have some influence on the genetic structure of this species. The first relevant result was that the genetic diversity for CR, and the microsatellites were substantially lower in the Bolivian bufeos than in the dolphins studied in other areas of the Amazon and Orinoco. However, the DQB-1 gene sequences yielded similar genetic diversity to those found in other areas. The second relevant result is the existence of some significant genetic heterogeneity among the bufeo populations within Bolivia, although in a small degree, but this differentiation is independent of the inner rapids of the Bolivian rivers we sampled. The third relevant result was the existence of significant isolation by distance for the CR, but not for microsatellites and DQB-1 gene sequences. This was related to differential gene flow capacity of females (philopatric) and males (less philopatric and more migrants) and, possibly, to different selective patterns affecting the molecular markers studied. The fourth relevant result was related to diverse demographic changes of these bufeos. At least two or three bottleneck events and one or two population expansions have occurred in the Bolivian bufeo population. The major part of these events occurred during the Pleistocene.spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.doihttps://doi.org/10.3390/genes15081012spa
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/44852
dc.language.isoengspa
dc.publisherGenesspa
dc.relation.ispartofGenesspa
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccessspa
dc.rights.accesoAbierto (Texto Completo)spa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.sourceGenesspa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subjectDQB-1 gene sequencesspa
dc.subjectInia boliviensisspa
dc.subjectMicrosatellitesspa
dc.subjectMitochondrial control regionspa
dc.subjectPleistocenespa
dc.subjectRapidsspa
dc.subjectSouth American climatic and geological changesspa
dc.subjectSpatial patternsspa
dc.titleAre There Barriers Separating the Pink River Dolphin Populations (Inia boliviensis, Iniidae, Cetacea) within the Mamoré–Iténez River Basins (Bolivia)? An Analysis of Its Genetic Structure by Means of Mitochondrial and Nuclear DNA Markersspa
dc.typearticlespa
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersionspa
dc.type.spaArtículospa
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