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...
Published in: | Evolutionary Applications |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/eva.13091 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.13091 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.13091 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.13091 |
id |
crwiley:10.1111/eva.13091 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/eva.13091 2024-06-02T08:04:28+00:00 Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales Pampoulie, Christophe Gíslason, Davíð Ólafsdóttir, Guðbjörg Chosson, Valérie Halldórsson, Sverrir Daníel Mariani, Stefano Elvarsson, Bjarki Þ. Rasmussen, Marianne H. Iversen, Maria R. Daníelsdóttir, Anna Kristín Víkingsson, Gísli A. 2020 http://dx.doi.org/10.1111/eva.13091 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.13091 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.13091 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.13091 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Evolutionary Applications volume 14, issue 2, page 314-321 ISSN 1752-4571 1752-4571 journal-article 2020 crwiley https://doi.org/10.1111/eva.13091 2024-05-03T10:48:03Z 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 Wiley Online Library Evolutionary Applications 14 2 314 321 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
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 |
Pampoulie, Christophe Gíslason, Davíð Ólafsdóttir, Guðbjörg Chosson, Valérie Halldórsson, Sverrir Daníel Mariani, Stefano Elvarsson, Bjarki Þ. Rasmussen, Marianne H. Iversen, Maria R. Daníelsdóttir, Anna Kristín Víkingsson, Gísli A. |
spellingShingle |
Pampoulie, Christophe Gíslason, Davíð Ólafsdóttir, Guðbjörg Chosson, Valérie Halldórsson, Sverrir Daníel Mariani, Stefano Elvarsson, Bjarki Þ. Rasmussen, Marianne H. Iversen, Maria R. Daníelsdóttir, Anna Kristín Víkingsson, Gísli A. Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
author_facet |
Pampoulie, Christophe Gíslason, Davíð Ólafsdóttir, Guðbjörg Chosson, Valérie Halldórsson, Sverrir Daníel Mariani, Stefano Elvarsson, Bjarki Þ. Rasmussen, Marianne H. Iversen, Maria R. Daníelsdóttir, Anna Kristín Víkingsson, Gísli A. |
author_sort |
Pampoulie, Christophe |
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 |
2020 |
url |
http://dx.doi.org/10.1111/eva.13091 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.13091 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.13091 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.13091 |
genre |
Blue whale Fin whale |
genre_facet |
Blue whale Fin whale |
op_source |
Evolutionary Applications volume 14, issue 2, page 314-321 ISSN 1752-4571 1752-4571 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
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_ |
1800749104410656768 |