Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales
Abstract Biodiversity in the oceans has dramatically declined since the beginning of the industrial era, with accelerated loss of marine biodiversity impairing the ocean's capacity to maintain vital ecosystem services. A few organisms epitomize the damaging and long‐lasting effects of anthropog...
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ftdoajarticles:oai:doaj.org/article:316b6cb347804932ad49781d325e658c 2023-05-15T15:45:10+02:00 Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales Christophe Pampoulie Davíð Gíslason Guðbjörg Ólafsdóttir Valérie Chosson Sverrir Daníel Halldórsson Stefano Mariani Bjarki Þ. Elvarsson Marianne H. Rasmussen Maria R. Iversen Anna Kristín Daníelsdóttir Gísli A. Víkingsson 2021-02-01T00:00:00Z https://doi.org/10.1111/eva.13091 https://doaj.org/article/316b6cb347804932ad49781d325e658c EN eng Wiley https://doi.org/10.1111/eva.13091 https://doaj.org/toc/1752-4571 1752-4571 doi:10.1111/eva.13091 https://doaj.org/article/316b6cb347804932ad49781d325e658c Evolutionary Applications, Vol 14, Iss 2, Pp 314-321 (2021) Balaenoptera sp directionality F2 hybrid hybridization marine mammals Evolution QH359-425 article 2021 ftdoajarticles https://doi.org/10.1111/eva.13091 2022-12-31T15:26:35Z Abstract Biodiversity in the oceans has dramatically declined since the beginning of the industrial era, with accelerated loss of marine biodiversity impairing the ocean's capacity to maintain vital ecosystem services. A few organisms epitomize the damaging and long‐lasting effects of anthropogenic exploitation: Some whale species, for instance, were brought to the brink of extinction, with their population sizes reduced to such low levels that may have caused a significant disruption to their reproductive dynamics and facilitated hybridization events. The incidence of hybridization is nevertheless believed to be rare, and very little information exists on its directionality. Here, using genetic markers, we show that all but one whale hybrid sample collected in Icelandic waters originated from the successful mating of male fin whale and female blue whale, thus suggesting unidirectional hybridization. We also demonstrate for the first time the existence of a second‐generation adult (male) hybrid resulting from a backcross between a female hybrid and a pure male fin whale. The incidence of hybridization events between fin and blue whales is likely underestimated and the observed unidirectional hybridization (for F1 and F2 hybrids) is likely to induce a reproductive loss in blue whale, which may represent an additional challenge to its recovery in the Atlantic Ocean compared to other rorquals. Article in Journal/Newspaper Blue whale Fin whale Directory of Open Access Journals: DOAJ Articles Evolutionary Applications 14 2 314 321 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Balaenoptera sp directionality F2 hybrid hybridization marine mammals Evolution QH359-425 |
spellingShingle |
Balaenoptera sp directionality F2 hybrid hybridization marine mammals Evolution QH359-425 Christophe Pampoulie Davíð Gíslason Guðbjörg Ólafsdóttir Valérie Chosson Sverrir Daníel Halldórsson Stefano Mariani Bjarki Þ. Elvarsson Marianne H. Rasmussen Maria R. Iversen Anna Kristín Daníelsdóttir Gísli A. Víkingsson Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
topic_facet |
Balaenoptera sp directionality F2 hybrid hybridization marine mammals Evolution QH359-425 |
description |
Abstract Biodiversity in the oceans has dramatically declined since the beginning of the industrial era, with accelerated loss of marine biodiversity impairing the ocean's capacity to maintain vital ecosystem services. A few organisms epitomize the damaging and long‐lasting effects of anthropogenic exploitation: Some whale species, for instance, were brought to the brink of extinction, with their population sizes reduced to such low levels that may have caused a significant disruption to their reproductive dynamics and facilitated hybridization events. The incidence of hybridization is nevertheless believed to be rare, and very little information exists on its directionality. Here, using genetic markers, we show that all but one whale hybrid sample collected in Icelandic waters originated from the successful mating of male fin whale and female blue whale, thus suggesting unidirectional hybridization. We also demonstrate for the first time the existence of a second‐generation adult (male) hybrid resulting from a backcross between a female hybrid and a pure male fin whale. The incidence of hybridization events between fin and blue whales is likely underestimated and the observed unidirectional hybridization (for F1 and F2 hybrids) is likely to induce a reproductive loss in blue whale, which may represent an additional challenge to its recovery in the Atlantic Ocean compared to other rorquals. |
format |
Article in Journal/Newspaper |
author |
Christophe Pampoulie Davíð Gíslason Guðbjörg Ólafsdóttir Valérie Chosson Sverrir Daníel Halldórsson Stefano Mariani Bjarki Þ. Elvarsson Marianne H. Rasmussen Maria R. Iversen Anna Kristín Daníelsdóttir Gísli A. Víkingsson |
author_facet |
Christophe Pampoulie Davíð Gíslason Guðbjörg Ólafsdóttir Valérie Chosson Sverrir Daníel Halldórsson Stefano Mariani Bjarki Þ. Elvarsson Marianne H. Rasmussen Maria R. Iversen Anna Kristín Daníelsdóttir Gísli A. Víkingsson |
author_sort |
Christophe Pampoulie |
title |
Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
title_short |
Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
title_full |
Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
title_fullStr |
Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
title_full_unstemmed |
Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
title_sort |
evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on earth, the fin and blue whales |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1111/eva.13091 https://doaj.org/article/316b6cb347804932ad49781d325e658c |
genre |
Blue whale Fin whale |
genre_facet |
Blue whale Fin whale |
op_source |
Evolutionary Applications, Vol 14, Iss 2, Pp 314-321 (2021) |
op_relation |
https://doi.org/10.1111/eva.13091 https://doaj.org/toc/1752-4571 1752-4571 doi:10.1111/eva.13091 https://doaj.org/article/316b6cb347804932ad49781d325e658c |
op_doi |
https://doi.org/10.1111/eva.13091 |
container_title |
Evolutionary Applications |
container_volume |
14 |
container_issue |
2 |
container_start_page |
314 |
op_container_end_page |
321 |
_version_ |
1766379517843079168 |