Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales
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 expl...
Published in: | Evolutionary Applications |
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Online Access: | http://researchonline.ljmu.ac.uk/id/eprint/13527/ https://researchonline.ljmu.ac.uk/id/eprint/13527/8/eva.13091.pdf https://doi.org/10.1111/eva.13091 |
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ftliverpooljmu:oai:researchonline.ljmu.ac.uk:13527 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 Pampoulie, C Gíslason, D Ólafsdóttir, G Chosson, V Halldórsson, SD Mariani, S Elvarsson, BÞ Rasmussen, MH Iversen, MR Daníelsdóttir, AK Víkingsson, GA 2020-08-28 text http://researchonline.ljmu.ac.uk/id/eprint/13527/ https://researchonline.ljmu.ac.uk/id/eprint/13527/8/eva.13091.pdf https://doi.org/10.1111/eva.13091 en eng Wiley Open Access https://researchonline.ljmu.ac.uk/id/eprint/13527/8/eva.13091.pdf Pampoulie, C, Gíslason, D, Ólafsdóttir, G, Chosson, V, Halldórsson, SD, Mariani, S, Elvarsson, BÞ, Rasmussen, MH, Iversen, MR, Daníelsdóttir, AK and Víkingsson, GA (2020) Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales. Evolutionary Applications, 14 (2). pp. 314-321. ISSN 1752-4571 doi:10.1111/eva.13091 cc_by CC-BY QH Natural history QL Zoology Article PeerReviewed 2020 ftliverpooljmu https://doi.org/10.1111/eva.13091 2022-01-09T06:57:02Z 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 cause 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 exist 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 Liverpool John Moores University: LJMU Research Online Evolutionary Applications 14 2 314 321 |
institution |
Open Polar |
collection |
Liverpool John Moores University: LJMU Research Online |
op_collection_id |
ftliverpooljmu |
language |
English |
topic |
QH Natural history QL Zoology |
spellingShingle |
QH Natural history QL Zoology Pampoulie, C Gíslason, D Ólafsdóttir, G Chosson, V Halldórsson, SD Mariani, S Elvarsson, BÞ Rasmussen, MH Iversen, MR Daníelsdóttir, AK Víkingsson, GA Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales |
topic_facet |
QH Natural history QL Zoology |
description |
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 cause 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 exist 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, C Gíslason, D Ólafsdóttir, G Chosson, V Halldórsson, SD Mariani, S Elvarsson, BÞ Rasmussen, MH Iversen, MR Daníelsdóttir, AK Víkingsson, GA |
author_facet |
Pampoulie, C Gíslason, D Ólafsdóttir, G Chosson, V Halldórsson, SD Mariani, S Elvarsson, BÞ Rasmussen, MH Iversen, MR Daníelsdóttir, AK Víkingsson, GA |
author_sort |
Pampoulie, C |
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 Open Access |
publishDate |
2020 |
url |
http://researchonline.ljmu.ac.uk/id/eprint/13527/ https://researchonline.ljmu.ac.uk/id/eprint/13527/8/eva.13091.pdf https://doi.org/10.1111/eva.13091 |
genre |
Blue whale Fin whale |
genre_facet |
Blue whale Fin whale |
op_relation |
https://researchonline.ljmu.ac.uk/id/eprint/13527/8/eva.13091.pdf Pampoulie, C, Gíslason, D, Ólafsdóttir, G, Chosson, V, Halldórsson, SD, Mariani, S, Elvarsson, BÞ, Rasmussen, MH, Iversen, MR, Daníelsdóttir, AK and Víkingsson, GA (2020) Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales. Evolutionary Applications, 14 (2). pp. 314-321. ISSN 1752-4571 doi:10.1111/eva.13091 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
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 |
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1766379518541430784 |