Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region
The genus Pseudocalanus (Copepoda, Calanoida) is among the most numerically dominant copepods in eastern North Pacific and Pacific-Arctic waters. We compared population connectivity and phylogeography based on DNA sequence variation for a portion of the mitochondrial cytochrome oxidase I gene for fo...
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ftpubmed:oai:pubmedcentral.nih.gov:4892229 2023-05-15T14:41:58+02:00 Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region Questel, Jennifer Marie Blanco-Bercial, Leocadio Hopcroft, Russell R. Bucklin, Ann 2016-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892229/ http://www.ncbi.nlm.nih.gov/pubmed/27274099 https://doi.org/10.1093/plankt/fbw025 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892229/ http://www.ncbi.nlm.nih.gov/pubmed/27274099 http://dx.doi.org/10.1093/plankt/fbw025 © The Author 2016. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com Article Text 2016 ftpubmed https://doi.org/10.1093/plankt/fbw025 2017-05-07T00:09:22Z The genus Pseudocalanus (Copepoda, Calanoida) is among the most numerically dominant copepods in eastern North Pacific and Pacific-Arctic waters. We compared population connectivity and phylogeography based on DNA sequence variation for a portion of the mitochondrial cytochrome oxidase I gene for four Pseudocalanus species with differing biogeographical ranges within these ocean regions. Genetic analyses were linked to characterization of biological and physical environmental variables for each sampled region. Haplotype diversity was higher for the temperate species (Pseudocalanus mimus and Pseudocalanus newmani) than for the Arctic species (Pseudocalanus acuspes and Pseudocalanus minutus). Genetic differentiation among populations at regional scales was observed for all species, except P. minutus. The program Migrate-N tested the likelihood of alternative models of directional gene flow between sampled populations in relation to oceanographic features. Model results estimated predominantly northward gene flow from the Gulf of Alaska to the Beaufort Sea for P. newmani. Model scenarios that allowed bidirectional gene flow between sampled populations gave the best Bayesian predictions for P. acuspes, P. mimus and P. minutus. Under current warming trends, biogeographical boundaries and barriers for Pseudocalanus species may shift, allowing habitat range expansion or contraction and resulting in altered population connectivity between Arctic and sub-Arctic populations. Text Arctic Beaufort Sea Pacific Arctic Pseudocalanus minutus Alaska Copepods PubMed Central (PMC) Arctic Gulf of Alaska Pacific Journal of Plankton Research 38 3 610 623 |
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Article Questel, Jennifer Marie Blanco-Bercial, Leocadio Hopcroft, Russell R. Bucklin, Ann Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region |
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Article |
description |
The genus Pseudocalanus (Copepoda, Calanoida) is among the most numerically dominant copepods in eastern North Pacific and Pacific-Arctic waters. We compared population connectivity and phylogeography based on DNA sequence variation for a portion of the mitochondrial cytochrome oxidase I gene for four Pseudocalanus species with differing biogeographical ranges within these ocean regions. Genetic analyses were linked to characterization of biological and physical environmental variables for each sampled region. Haplotype diversity was higher for the temperate species (Pseudocalanus mimus and Pseudocalanus newmani) than for the Arctic species (Pseudocalanus acuspes and Pseudocalanus minutus). Genetic differentiation among populations at regional scales was observed for all species, except P. minutus. The program Migrate-N tested the likelihood of alternative models of directional gene flow between sampled populations in relation to oceanographic features. Model results estimated predominantly northward gene flow from the Gulf of Alaska to the Beaufort Sea for P. newmani. Model scenarios that allowed bidirectional gene flow between sampled populations gave the best Bayesian predictions for P. acuspes, P. mimus and P. minutus. Under current warming trends, biogeographical boundaries and barriers for Pseudocalanus species may shift, allowing habitat range expansion or contraction and resulting in altered population connectivity between Arctic and sub-Arctic populations. |
format |
Text |
author |
Questel, Jennifer Marie Blanco-Bercial, Leocadio Hopcroft, Russell R. Bucklin, Ann |
author_facet |
Questel, Jennifer Marie Blanco-Bercial, Leocadio Hopcroft, Russell R. Bucklin, Ann |
author_sort |
Questel, Jennifer Marie |
title |
Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region |
title_short |
Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region |
title_full |
Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region |
title_fullStr |
Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region |
title_full_unstemmed |
Phylogeography and connectivity of the Pseudocalanus (Copepoda: Calanoida) species complex in the eastern North Pacific and the Pacific Arctic Region |
title_sort |
phylogeography and connectivity of the pseudocalanus (copepoda: calanoida) species complex in the eastern north pacific and the pacific arctic region |
publisher |
Oxford University Press |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892229/ http://www.ncbi.nlm.nih.gov/pubmed/27274099 https://doi.org/10.1093/plankt/fbw025 |
geographic |
Arctic Gulf of Alaska Pacific |
geographic_facet |
Arctic Gulf of Alaska Pacific |
genre |
Arctic Beaufort Sea Pacific Arctic Pseudocalanus minutus Alaska Copepods |
genre_facet |
Arctic Beaufort Sea Pacific Arctic Pseudocalanus minutus Alaska Copepods |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892229/ http://www.ncbi.nlm.nih.gov/pubmed/27274099 http://dx.doi.org/10.1093/plankt/fbw025 |
op_rights |
© The Author 2016. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com |
op_doi |
https://doi.org/10.1093/plankt/fbw025 |
container_title |
Journal of Plankton Research |
container_volume |
38 |
container_issue |
3 |
container_start_page |
610 |
op_container_end_page |
623 |
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1766313650181636096 |