Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/121003
Título: Genomics reveals the role of admixture in the evolution of structure among sperm whale populations within the Mediterranean Sea
Autores/as: Violi, Biagio
de Jong, Menno J.
Frantzis, Alexandros
Alexiadou, Paraskevi
Tardy, Céline
Ody, Denis
de Stephanis, Renaud
Giménez, Joan
Lucifora, Giuseppe
Silva, Mónica A. e
Oliveira, Cláudia
Alves, Filipe
Dinis, Ana
Tejedor, Marisa
Fernández Rodríguez, Antonio Jesús 
Arregui Gil,Marina 
Arbelo Hernández, Manuel Antonio 
Lopez, Alfredo
Covelo, Pablo
Hoelzel, A. Rus
Clasificación UNESCO: 240119 Zoología marina
310902 Genética
Palabras clave: Genomics
Admixture
Evolution
Population structure
Demography, et al.
Fecha de publicación: 2023
Publicación seriada: Molecular Ecology 
Resumen: In oceanic ecosystems, the nature of barriers to gene flow, and the processes by which populations may become isolated are different from the terrestrial environment, and less well understood. In this study we investigate a highly mobile species (the sperm whale, Physeter macrocephalus) that is genetically differentiated between an open North Atlantic population and the populations in the Mediterranean Sea. We apply high resolution single nucleotide polymorphism (SNP) analysis to study the nature of barriers to gene flow in this system, assessing the putative boundary into the Mediterranean (Strait of Gibraltar and Alboran Sea region), and including novel analyses on structuring among sperm whale populations within the Mediterranean basin. Our data support a recent founding of the Mediterranean, around the time of the last glacial maximum, and show concerted historical demographic profiles in both the Atlantic and in the Mediterranean. In each region there is evidence for a population decline around the time of the founder event. The largest decline was seen within the Mediterranean Sea where effective population size is substantially lower (especially in the eastern basin). While differentiation is strongest at the Atlantic/Mediterranean boundary, there is also weaker but significant differentiation between the eastern and western basins of the Mediterranean Sea. We propose, however, that the mechanisms are different. While post-founding gene flow was reduced between the Mediterranean and Atlantic populations, within the Mediterranean an important factor differentiating the basins is likely a greater degree of admixture between the western basin and the North Atlantic and some level of isolation between the western and eastern Mediterranean basins. Subdivision within the Mediterranean Sea exacerbates conservation concerns and will require consideration of what distinct impacts may affect populations in the two basins.
URI: http://hdl.handle.net/10553/121003
ISSN: 0962-1083
DOI: 10.1111/mec.16898
Fuente: Molecular Ecology [ISSN 0962-1083], (Febrero 2023)
Colección:Artículos
Adobe PDF (3,58 MB)
Vista completa

Citas SCOPUSTM   

2
actualizado el 24-mar-2024

Visitas

76
actualizado el 23-mar-2024

Descargas

31
actualizado el 23-mar-2024

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.