Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale
Visual species identification of cetacean strandings is difficult, especially when dead specimens are degraded and/or species are morphologically similar. The two recognised pilot whale species (Globicephala melas and Globicephala macrorhynchus) are sympatric in the North Atlantic Ocean. These speci...
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ftcsic:oai:digital.csic.es:10261/323724 2024-02-11T10:06:27+01:00 Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale Miralles, Laura Lens, Santiago Rodríguez-Folgar, Antonio Carrillo, Manuel Martín, Vidal Mikkelsen, Bjarni García-Vázquez, Eva 2013-08-19 http://hdl.handle.net/10508/1556 http://hdl.handle.net/10261/323724 https://doi.org/10.1371/journal.pone.0069511 en eng Centro Oceanográfico de Vigo http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0069511 PLoS ONE, 8 (8). 2013: 1-6 http://hdl.handle.net/10508/1556 http://hdl.handle.net/10261/323724 doi:10.1371/journal.pone.0069511 7136 open Medio Marino Centro Oceanográfico de Vigo research article 2013 ftcsic https://doi.org/10.1371/journal.pone.0069511 2024-01-16T11:47:18Z Visual species identification of cetacean strandings is difficult, especially when dead specimens are degraded and/or species are morphologically similar. The two recognised pilot whale species (Globicephala melas and Globicephala macrorhynchus) are sympatric in the North Atlantic Ocean. These species are very similar in external appearance and their morphometric characteristics partially overlap; thus visual identification is not always reliable. Genetic species identification ensures correct identification of specimens. Here we have employed one mitochondrial (D-Loop region) and eight nuclear loci (microsatellites) as genetic markers to identify six stranded pilot whales found in Galicia (Northwest Spain), one of them of ambiguous phenotype. DNA analyses yielded positive amplification of all loci and enabled species identification. Nuclear microsatellite DNA genotypes revealed mixed ancestry for one individual, identified as a post-F1 interspecific hybrid employing two different Bayesian methods. From the mitochondrial sequence the maternal species was Globicephala melas. This is the first hybrid documented between Globicephala melas and G. macrorhynchus, and the first post-F1 hybrid genetically identified between cetaceans, revealing interspecific genetic introgression in marine mammals. We propose to add nuclear loci to genetic databases for cetacean species identification in order to detect hybrid individuals. Sí Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) PLoS ONE 8 8 e69511 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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English |
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Medio Marino Centro Oceanográfico de Vigo |
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Medio Marino Centro Oceanográfico de Vigo Miralles, Laura Lens, Santiago Rodríguez-Folgar, Antonio Carrillo, Manuel Martín, Vidal Mikkelsen, Bjarni García-Vázquez, Eva Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale |
topic_facet |
Medio Marino Centro Oceanográfico de Vigo |
description |
Visual species identification of cetacean strandings is difficult, especially when dead specimens are degraded and/or species are morphologically similar. The two recognised pilot whale species (Globicephala melas and Globicephala macrorhynchus) are sympatric in the North Atlantic Ocean. These species are very similar in external appearance and their morphometric characteristics partially overlap; thus visual identification is not always reliable. Genetic species identification ensures correct identification of specimens. Here we have employed one mitochondrial (D-Loop region) and eight nuclear loci (microsatellites) as genetic markers to identify six stranded pilot whales found in Galicia (Northwest Spain), one of them of ambiguous phenotype. DNA analyses yielded positive amplification of all loci and enabled species identification. Nuclear microsatellite DNA genotypes revealed mixed ancestry for one individual, identified as a post-F1 interspecific hybrid employing two different Bayesian methods. From the mitochondrial sequence the maternal species was Globicephala melas. This is the first hybrid documented between Globicephala melas and G. macrorhynchus, and the first post-F1 hybrid genetically identified between cetaceans, revealing interspecific genetic introgression in marine mammals. We propose to add nuclear loci to genetic databases for cetacean species identification in order to detect hybrid individuals. Sí |
format |
Article in Journal/Newspaper |
author |
Miralles, Laura Lens, Santiago Rodríguez-Folgar, Antonio Carrillo, Manuel Martín, Vidal Mikkelsen, Bjarni García-Vázquez, Eva |
author_facet |
Miralles, Laura Lens, Santiago Rodríguez-Folgar, Antonio Carrillo, Manuel Martín, Vidal Mikkelsen, Bjarni García-Vázquez, Eva |
author_sort |
Miralles, Laura |
title |
Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale |
title_short |
Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale |
title_full |
Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale |
title_fullStr |
Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale |
title_full_unstemmed |
Interspecific Introgression in Cetaceans: DNA Markers Reveal Post-F1 Status of a Pilot Whale |
title_sort |
interspecific introgression in cetaceans: dna markers reveal post-f1 status of a pilot whale |
publishDate |
2013 |
url |
http://hdl.handle.net/10508/1556 http://hdl.handle.net/10261/323724 https://doi.org/10.1371/journal.pone.0069511 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Centro Oceanográfico de Vigo http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0069511 PLoS ONE, 8 (8). 2013: 1-6 http://hdl.handle.net/10508/1556 http://hdl.handle.net/10261/323724 doi:10.1371/journal.pone.0069511 7136 |
op_rights |
open |
op_doi |
https://doi.org/10.1371/journal.pone.0069511 |
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PLoS ONE |
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8 |
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8 |
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e69511 |
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