Uncovering population structure in the Humboldt penguin (Spheniscus humboldti) along the Pacific coast at South America

Vista sencilla de ítem
dc.contributor.authorDantas, Gisele P.M.
dc.contributor.authorOliveira, Larissa R.
dc.contributor.authorSantos, Amanda M.
dc.contributor.authorFlores, Mariana D.
dc.contributor.authorDe Melo, Daniella R.
dc.contributor.authorSimeone, Alejandro
dc.contributor.authorGonzález-Acuña, Daniel
dc.contributor.authorLuna-Jorquera, Guillermo
dc.contributor.authorLe Bohec, Céline
dc.contributor.authorValdés-Velásquez, Armando
dc.contributor.authorCardeña, Marco
dc.contributor.authorMorgante, João S.
dc.contributor.authorVianna, Juliana A.
dc.date.accessioned2024-04-13T17:16:19Z
dc.date.available2024-04-13T17:16:19Z
dc.date.issued2019-05
dc.descriptionINDEXACIÓN: SCOPUS.
dc.description.abstractThe upwelling hypothesis has been proposed to explain reduced or lack of population structure in seabird species specialized in food resources available at cold-water upwellings. However, population genetic structure may be challenging to detect in species with large population sizes, since variation in allele frequencies are more robust under genetic drift. High gene flow among populations, that can be constant or pulses of migration in a short period, may also decrease power of algorithms to detect genetic structure. Penguin species usually have large population sizes, high migratory ability but philopatric behavior, and recent investigations debate the existence of subtle population structure for some species not detected before. Previous study on Humboldt penguins found lack of population genetic structure for colonies of Punta San Juan and from South Chile. Here, we used mtDNA and nuclear markers (10 microsatellites and RAG1 intron) to evaluate population structure for 11 main breeding colonies of Humboldt penguins, covering the whole spatial distribution of this species. Although mtDNA failed to detect population structure, microsatellite loci and nuclear intron detected population structure along its latitudinal distribution. Microsatellite showed significant Rst values between most of pairwise locations (44 of 56 locations, Rst = 0.003 to 0.081) and 86% of individuals were assigned to their sampled colony, suggesting philopatry. STRUCTURE detected three main genetic clusters according to geographical locations: i) Peru; ii) North of Chile; and iii) Central-South of Chile. The Humboldt penguin shows signal population expansion after the Last Glacial Maximum (LGM), suggesting that the genetic structure of the species is a result of population dynamics and foraging colder water upwelling that favor gene flow and phylopatric rate. Our findings thus highlight that variable markers and wide sampling along the species distribution are crucial to better understand genetic population structure in animals with high dispersal ability. © 2019 Dantas 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 14, Issue 5, May 2019, Article number e0215293
dc.identifier.doi10.1371/journal.pone.0215293
dc.identifier.issn1932-6203
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/55919
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.licenseCC BY 4.0 DEED Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAlgorithms
dc.subjectAnimals
dc.subjectChile
dc.subjectConservation of Natural Resources
dc.subjectDNA, Mitochondrial
dc.subjectGene Flow
dc.subjectGenetic Drift
dc.subjectGenetics, Population
dc.subjectGenotyping Techniques
dc.subjectMicrosatellite Repeats
dc.subjectPeru
dc.subjectPopulation Density
dc.subjectPopulation Dynamics
dc.subjectSpheniscidae
dc.titleUncovering population structure in the Humboldt penguin (Spheniscus humboldti) along the Pacific coast at South America
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
Uncovering-population-structure-in-the-Humboldt-penguin-Spheniscus-humboldti-along-the-Pacific-coast-at-South-AmericaPLoS-ONE (1).pdf
Tamaño:
1.29 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLÉS.
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
Fac.CV - Artículos de Revista