Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae)
Humpback whales (Megaptera novaeangliae) annually undertake the longest migrations between seasonal feeding and breeding grounds of any mammal. Despite this dispersal potential, discontinuous seasonal distributions and migratory patterns suggest that humpbacks form discrete regional populations with...
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ftnerc:oai:nora.nerc.ac.uk:503642 2023-05-15T17:10:48+02:00 Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) Jackson, Jennifer A. Steel, Debbie J. Beerli, P. Congdon, Bradley C. Olavarría, C. Leslie, Matthew S. Pomilla, C. Rosenbaum, H. Baker, C. S. 2014-07-07 text http://nora.nerc.ac.uk/id/eprint/503642/ https://nora.nerc.ac.uk/id/eprint/503642/1/Humpback_diversity_accepted_MS.doc https://nora.nerc.ac.uk/id/eprint/503642/3/Humpback_diversity_accepted_MS.pdf en eng https://nora.nerc.ac.uk/id/eprint/503642/1/Humpback_diversity_accepted_MS.doc https://nora.nerc.ac.uk/id/eprint/503642/3/Humpback_diversity_accepted_MS.pdf Jackson, Jennifer A. orcid:0000-0003-4158-1924 Steel, Debbie J.; Beerli, P.; Congdon, Bradley C.; Olavarría, C.; Leslie, Matthew S.; Pomilla, C.; Rosenbaum, H.; Baker, C. S. 2014 Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae). Proceedings of the Royal Society of London, B, 281 (1786). https://doi.org/10.1098/rspb.2013.3222 <https://doi.org/10.1098/rspb.2013.3222> Publication - Article PeerReviewed 2014 ftnerc https://doi.org/10.1098/rspb.2013.3222 2023-02-04T19:37:58Z Humpback whales (Megaptera novaeangliae) annually undertake the longest migrations between seasonal feeding and breeding grounds of any mammal. Despite this dispersal potential, discontinuous seasonal distributions and migratory patterns suggest that humpbacks form discrete regional populations within each ocean. To better understand the worldwide population history of humpbacks, and the interplay of this species with the oceanic environment through geological time, we assembled mitochondrial DNA control region sequences representing approximately 2700 individuals (465 bp, 219 haplotypes) and eight nuclear intronic sequences representing approximately 70 individuals (3700 bp, 140 alleles) from the North Pacific, North Atlantic and Southern Hemisphere. Bayesian divergence time reconstructions date the origin of humpback mtDNA lineages to the Pleistocene (880 ka, 95% posterior intervals 550–1320 ka) and estimate radiation of current Northern Hemisphere lineages between 50 and 200 ka, indicating colonization of the northern oceans prior to the Last Glacial Maximum. Coalescent analyses reveal restricted gene flow between ocean basins, with long-term migration rates (individual migrants per generation) of less than 3.3 for mtDNA and less than 2 for nuclear genomic DNA. Genetic evidence suggests that humpbacks in the North Pacific, North Atlantic and Southern Hemisphere are on independent evolutionary trajectories, supporting taxonomic revision of M. novaeangliae to three subspecies. Article in Journal/Newspaper Megaptera novaeangliae North Atlantic Natural Environment Research Council: NERC Open Research Archive Pacific Proceedings of the Royal Society B: Biological Sciences 281 1786 20133222 |
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Natural Environment Research Council: NERC Open Research Archive |
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English |
description |
Humpback whales (Megaptera novaeangliae) annually undertake the longest migrations between seasonal feeding and breeding grounds of any mammal. Despite this dispersal potential, discontinuous seasonal distributions and migratory patterns suggest that humpbacks form discrete regional populations within each ocean. To better understand the worldwide population history of humpbacks, and the interplay of this species with the oceanic environment through geological time, we assembled mitochondrial DNA control region sequences representing approximately 2700 individuals (465 bp, 219 haplotypes) and eight nuclear intronic sequences representing approximately 70 individuals (3700 bp, 140 alleles) from the North Pacific, North Atlantic and Southern Hemisphere. Bayesian divergence time reconstructions date the origin of humpback mtDNA lineages to the Pleistocene (880 ka, 95% posterior intervals 550–1320 ka) and estimate radiation of current Northern Hemisphere lineages between 50 and 200 ka, indicating colonization of the northern oceans prior to the Last Glacial Maximum. Coalescent analyses reveal restricted gene flow between ocean basins, with long-term migration rates (individual migrants per generation) of less than 3.3 for mtDNA and less than 2 for nuclear genomic DNA. Genetic evidence suggests that humpbacks in the North Pacific, North Atlantic and Southern Hemisphere are on independent evolutionary trajectories, supporting taxonomic revision of M. novaeangliae to three subspecies. |
format |
Article in Journal/Newspaper |
author |
Jackson, Jennifer A. Steel, Debbie J. Beerli, P. Congdon, Bradley C. Olavarría, C. Leslie, Matthew S. Pomilla, C. Rosenbaum, H. Baker, C. S. |
spellingShingle |
Jackson, Jennifer A. Steel, Debbie J. Beerli, P. Congdon, Bradley C. Olavarría, C. Leslie, Matthew S. Pomilla, C. Rosenbaum, H. Baker, C. S. Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) |
author_facet |
Jackson, Jennifer A. Steel, Debbie J. Beerli, P. Congdon, Bradley C. Olavarría, C. Leslie, Matthew S. Pomilla, C. Rosenbaum, H. Baker, C. S. |
author_sort |
Jackson, Jennifer A. |
title |
Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) |
title_short |
Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) |
title_full |
Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) |
title_fullStr |
Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) |
title_full_unstemmed |
Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae) |
title_sort |
global diversity and oceanic divergence of humpback whales (megaptera novaeangliae) |
publishDate |
2014 |
url |
http://nora.nerc.ac.uk/id/eprint/503642/ https://nora.nerc.ac.uk/id/eprint/503642/1/Humpback_diversity_accepted_MS.doc https://nora.nerc.ac.uk/id/eprint/503642/3/Humpback_diversity_accepted_MS.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Megaptera novaeangliae North Atlantic |
genre_facet |
Megaptera novaeangliae North Atlantic |
op_relation |
https://nora.nerc.ac.uk/id/eprint/503642/1/Humpback_diversity_accepted_MS.doc https://nora.nerc.ac.uk/id/eprint/503642/3/Humpback_diversity_accepted_MS.pdf Jackson, Jennifer A. orcid:0000-0003-4158-1924 Steel, Debbie J.; Beerli, P.; Congdon, Bradley C.; Olavarría, C.; Leslie, Matthew S.; Pomilla, C.; Rosenbaum, H.; Baker, C. S. 2014 Global diversity and oceanic divergence of humpback whales (Megaptera novaeangliae). Proceedings of the Royal Society of London, B, 281 (1786). https://doi.org/10.1098/rspb.2013.3222 <https://doi.org/10.1098/rspb.2013.3222> |
op_doi |
https://doi.org/10.1098/rspb.2013.3222 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
281 |
container_issue |
1786 |
container_start_page |
20133222 |
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1766067454138646528 |