Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus)
Abstract Right whales carry large populations of three ‘whale lice’ ( Cyamus ovalis , Cyamus gracilis , Cyamus erraticus ) that have no other hosts. We used sequence variation in the mitochondrial COI gene to ask (i) whether cyamid population structures might reveal associations among right whale in...
Published in: | Molecular Ecology |
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Online Access: | http://dx.doi.org/10.1111/j.1365-294x.2005.02664.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02664.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02664.x |
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crwiley:10.1111/j.1365-294x.2005.02664.x 2024-09-09T19:39:23+00:00 Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) KALISZEWSKA, ZOFIA A. SEGER, JON ROWNTREE, VICTORIA J. BARCO, SUSAN G. BENEGAS, RAFAEL BEST, PETER B. BROWN, MOIRA W. BROWNELL, ROBERT L. CARRIBERO, ALEJANDRO HARCOURT, ROBERT KNOWLTON, AMY R. MARSHALL‐TILAS, KIM PATENAUDE, NATHALIE J. RIVAROLA, MARIANA SCHAEFF, CATHERINE M. SIRONI, MARIANO SMITH, WENDY A. YAMADA, TADASU K. 2005 http://dx.doi.org/10.1111/j.1365-294x.2005.02664.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02664.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02664.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 14, issue 11, page 3439-3456 ISSN 0962-1083 1365-294X journal-article 2005 crwiley https://doi.org/10.1111/j.1365-294x.2005.02664.x 2024-06-20T04:23:08Z Abstract Right whales carry large populations of three ‘whale lice’ ( Cyamus ovalis , Cyamus gracilis , Cyamus erraticus ) that have no other hosts. We used sequence variation in the mitochondrial COI gene to ask (i) whether cyamid population structures might reveal associations among right whale individuals and subpopulations, (ii) whether the divergences of the three nominally conspecific cyamid species on North Atlantic, North Pacific, and southern right whales ( Eubalaena glacialis, Eubalaena japonica, Eubalaena australis ) might indicate their times of separation, and (iii) whether the shapes of cyamid gene trees might contain information about changes in the population sizes of right whales. We found high levels of nucleotide diversity but almost no population structure within oceans, indicating large effective population sizes and high rates of transfer between whales and subpopulations. North Atlantic and Southern Ocean populations of all three species are reciprocally monophyletic, and North Pacific C. erraticus is well separated from North Atlantic and southern C. erraticus . Mitochondrial clock calibrations suggest that these divergences occurred around 6 million years ago (Ma), and that the Eubalaena mitochondrial clock is very slow. North Pacific C. ovalis forms a clade inside the southern C. ovalis gene tree, implying that at least one right whale has crossed the equator in the Pacific Ocean within the last 1–2 million years (Myr). Low‐frequency polymorphisms are more common than expected under neutrality for populations of constant size, but there is no obvious signal of rapid, interspecifically congruent expansion of the kind that would be expected if North Atlantic or southern right whales had experienced a prolonged population bottleneck within the last 0.5 Myr. Article in Journal/Newspaper Eubalaena glacialis Eubalaena japonica North Atlantic Southern Ocean Wiley Online Library Pacific Southern Ocean Molecular Ecology 14 11 3439 3456 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Right whales carry large populations of three ‘whale lice’ ( Cyamus ovalis , Cyamus gracilis , Cyamus erraticus ) that have no other hosts. We used sequence variation in the mitochondrial COI gene to ask (i) whether cyamid population structures might reveal associations among right whale individuals and subpopulations, (ii) whether the divergences of the three nominally conspecific cyamid species on North Atlantic, North Pacific, and southern right whales ( Eubalaena glacialis, Eubalaena japonica, Eubalaena australis ) might indicate their times of separation, and (iii) whether the shapes of cyamid gene trees might contain information about changes in the population sizes of right whales. We found high levels of nucleotide diversity but almost no population structure within oceans, indicating large effective population sizes and high rates of transfer between whales and subpopulations. North Atlantic and Southern Ocean populations of all three species are reciprocally monophyletic, and North Pacific C. erraticus is well separated from North Atlantic and southern C. erraticus . Mitochondrial clock calibrations suggest that these divergences occurred around 6 million years ago (Ma), and that the Eubalaena mitochondrial clock is very slow. North Pacific C. ovalis forms a clade inside the southern C. ovalis gene tree, implying that at least one right whale has crossed the equator in the Pacific Ocean within the last 1–2 million years (Myr). Low‐frequency polymorphisms are more common than expected under neutrality for populations of constant size, but there is no obvious signal of rapid, interspecifically congruent expansion of the kind that would be expected if North Atlantic or southern right whales had experienced a prolonged population bottleneck within the last 0.5 Myr. |
format |
Article in Journal/Newspaper |
author |
KALISZEWSKA, ZOFIA A. SEGER, JON ROWNTREE, VICTORIA J. BARCO, SUSAN G. BENEGAS, RAFAEL BEST, PETER B. BROWN, MOIRA W. BROWNELL, ROBERT L. CARRIBERO, ALEJANDRO HARCOURT, ROBERT KNOWLTON, AMY R. MARSHALL‐TILAS, KIM PATENAUDE, NATHALIE J. RIVAROLA, MARIANA SCHAEFF, CATHERINE M. SIRONI, MARIANO SMITH, WENDY A. YAMADA, TADASU K. |
spellingShingle |
KALISZEWSKA, ZOFIA A. SEGER, JON ROWNTREE, VICTORIA J. BARCO, SUSAN G. BENEGAS, RAFAEL BEST, PETER B. BROWN, MOIRA W. BROWNELL, ROBERT L. CARRIBERO, ALEJANDRO HARCOURT, ROBERT KNOWLTON, AMY R. MARSHALL‐TILAS, KIM PATENAUDE, NATHALIE J. RIVAROLA, MARIANA SCHAEFF, CATHERINE M. SIRONI, MARIANO SMITH, WENDY A. YAMADA, TADASU K. Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) |
author_facet |
KALISZEWSKA, ZOFIA A. SEGER, JON ROWNTREE, VICTORIA J. BARCO, SUSAN G. BENEGAS, RAFAEL BEST, PETER B. BROWN, MOIRA W. BROWNELL, ROBERT L. CARRIBERO, ALEJANDRO HARCOURT, ROBERT KNOWLTON, AMY R. MARSHALL‐TILAS, KIM PATENAUDE, NATHALIE J. RIVAROLA, MARIANA SCHAEFF, CATHERINE M. SIRONI, MARIANO SMITH, WENDY A. YAMADA, TADASU K. |
author_sort |
KALISZEWSKA, ZOFIA A. |
title |
Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) |
title_short |
Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) |
title_full |
Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) |
title_fullStr |
Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) |
title_full_unstemmed |
Population histories of right whales (Cetacea: Eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (Amphipoda: Cyamus) |
title_sort |
population histories of right whales (cetacea: eubalaena) inferred from mitochondrial sequence diversities and divergences of their whale lice (amphipoda: cyamus) |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2005.02664.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02664.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02664.x |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Eubalaena glacialis Eubalaena japonica North Atlantic Southern Ocean |
genre_facet |
Eubalaena glacialis Eubalaena japonica North Atlantic Southern Ocean |
op_source |
Molecular Ecology volume 14, issue 11, page 3439-3456 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-294x.2005.02664.x |
container_title |
Molecular Ecology |
container_volume |
14 |
container_issue |
11 |
container_start_page |
3439 |
op_container_end_page |
3456 |
_version_ |
1809908532377550848 |