Data/hora: 06/06/2024 16:23:58

Provedor de dados: | 5
País: | France
Título: | Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming
Autores: | Miralles, Laura; Oremus, Marc; Silva, Monica A.; Planes, Serge; Garcia-vazquez, Eva.
Data: | 2016-08
Ano: | 2016
Resumo: | Pilot whales are two cetacean species (Globicephala melas and G. macrorhynchus) whose distributions are correlated with water temperature and partially overlap in some areas like the North Atlantic Ocean. In the context of global warming, distribution range shifts are expected to occur in species affected by temperature. Consequently, a northward displacement of the tropical pilot whale G. macrorynchus is expected, eventually leading to increased secondary contact areas and opportunities for interspecific hybridization. Here, we describe genetic evidences of recurrent hybridization between pilot whales in northeast Atlantic Ocean. Based on mitochondrial DNA sequences and microsatellite loci, asymmetric introgression of G. macrorhynchus genes into G. melas was observed. For the latter species, a significant correlation was found between historical population growth rate estimates and paleotemperature oscillations. Introgressive hybridization, current temperature increases and lower genetic variation in G. melas suggest that this species could be at risk in its northern range. Under increasing environmental and human-mediated stressors in the North Atlantic Ocean, it seems recommendable to develop a conservation program for G. melas.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00496/60720/65278.pdf

https://archimer.ifremer.fr/doc/00496/60720/65279.pdf

https://archimer.ifremer.fr/doc/00496/60720/65280.pdf

DOI:10.1371/journal.pone.0160080

https://archimer.ifremer.fr/doc/00496/60720/

Editor: | Public Library Science
Formato: | application/pdf
Fonte: | Plos One (1932-6203) (Public Library Science), 2016-08 , Vol. 11 , N. 8 , P. e160080 (15p)

Fonte:

info:eu-repo/semantics/openAccess

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