Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming
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 af...
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ftpubmed:oai:pubmedcentral.nih.gov:4980017 2023-05-15T17:29:56+02:00 Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming Miralles, Laura Oremus, Marc Silva, Mónica A. Planes, Serge Garcia-Vazquez, Eva 2016-08-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4980017/ http://www.ncbi.nlm.nih.gov/pubmed/27508496 https://doi.org/10.1371/journal.pone.0160080 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4980017/ http://www.ncbi.nlm.nih.gov/pubmed/27508496 http://dx.doi.org/10.1371/journal.pone.0160080 © 2016 Miralles et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2016 ftpubmed https://doi.org/10.1371/journal.pone.0160080 2016-08-28T00:08:51Z 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. Text North Atlantic Northeast Atlantic PubMed Central (PMC) PLOS ONE 11 8 e0160080 |
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Research Article Miralles, Laura Oremus, Marc Silva, Mónica A. Planes, Serge Garcia-Vazquez, Eva Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming |
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Research Article |
description |
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. |
format |
Text |
author |
Miralles, Laura Oremus, Marc Silva, Mónica A. Planes, Serge Garcia-Vazquez, Eva |
author_facet |
Miralles, Laura Oremus, Marc Silva, Mónica A. Planes, Serge Garcia-Vazquez, Eva |
author_sort |
Miralles, Laura |
title |
Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming |
title_short |
Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming |
title_full |
Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming |
title_fullStr |
Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming |
title_full_unstemmed |
Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming |
title_sort |
interspecific hybridization in pilot whales and asymmetric genetic introgression in northern globicephala melas under the scenario of global warming |
publisher |
Public Library of Science |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4980017/ http://www.ncbi.nlm.nih.gov/pubmed/27508496 https://doi.org/10.1371/journal.pone.0160080 |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4980017/ http://www.ncbi.nlm.nih.gov/pubmed/27508496 http://dx.doi.org/10.1371/journal.pone.0160080 |
op_rights |
© 2016 Miralles et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0160080 |
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PLOS ONE |
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11 |
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8 |
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e0160080 |
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