What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring?
Pacific herring show an abrupt genetic discontinuity in the central North Pacific that represents secondary contact between refuge populations previously isolated during Pleistocene glaciations. Paradoxically, high levels of gene flow produce genetic homogeneity among ocean-type populations within e...
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ftpubmed:oai:pubmedcentral.nih.gov:3532504 2023-05-15T15:43:50+02:00 What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? Liu, Ming Lin, Longshan Gao, Tianxiang Yanagimoto, Takashi Sakurai, Yasunori Grant, W. Stewart 2012-12-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3532504 http://www.ncbi.nlm.nih.gov/pubmed/23300525 https://doi.org/10.1371/journal.pone.0050340 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3532504 http://www.ncbi.nlm.nih.gov/pubmed/23300525 http://dx.doi.org/10.1371/journal.pone.0050340 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2012 ftpubmed https://doi.org/10.1371/journal.pone.0050340 2013-09-04T17:44:44Z Pacific herring show an abrupt genetic discontinuity in the central North Pacific that represents secondary contact between refuge populations previously isolated during Pleistocene glaciations. Paradoxically, high levels of gene flow produce genetic homogeneity among ocean-type populations within each group. Here, we surveyed variability in mtDNA control-region sequences (463 bp) and nine microsatellite loci in Pacific herring from sites across the North Pacific to further explore the nature of the genetic discontinuity around the Alaska Peninsula. Consistent with previous studies, little divergence (ΦST = 0.011) was detected between ocean-type populations of Pacific herring in the North West Pacific, except for a population in the Yellow Sea (ΦST = 0.065). A moderate reduction in genetic diversity for both mtDNA and microsatellites in the Yellow Sea likely reflects founder effects during the last colonization of this sea. Reciprocal monophyly between divergent mtDNA lineages (ΦST = 0.391) across the Alaska Peninsula defines the discontinuity across the North Pacific. However, microsatellites did not show a strong break, as eastern Bering Sea (EBS) herring were more closely related to NE Pacific than to NW Pacific herring. This discordance between mtDNA and microsatellites may be due to microsatellite allelic convergence or to sex-biased dispersal across the secondary contact zone. The sharp discontinuity between Pacific herring populations may be maintained by high-density blocking, competitive exclusion or hybrid inferiority. Text Bering Sea Alaska PubMed Central (PMC) Bering Sea Pacific PLoS ONE 7 12 e50340 |
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Research Article Liu, Ming Lin, Longshan Gao, Tianxiang Yanagimoto, Takashi Sakurai, Yasunori Grant, W. Stewart What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? |
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Research Article |
description |
Pacific herring show an abrupt genetic discontinuity in the central North Pacific that represents secondary contact between refuge populations previously isolated during Pleistocene glaciations. Paradoxically, high levels of gene flow produce genetic homogeneity among ocean-type populations within each group. Here, we surveyed variability in mtDNA control-region sequences (463 bp) and nine microsatellite loci in Pacific herring from sites across the North Pacific to further explore the nature of the genetic discontinuity around the Alaska Peninsula. Consistent with previous studies, little divergence (ΦST = 0.011) was detected between ocean-type populations of Pacific herring in the North West Pacific, except for a population in the Yellow Sea (ΦST = 0.065). A moderate reduction in genetic diversity for both mtDNA and microsatellites in the Yellow Sea likely reflects founder effects during the last colonization of this sea. Reciprocal monophyly between divergent mtDNA lineages (ΦST = 0.391) across the Alaska Peninsula defines the discontinuity across the North Pacific. However, microsatellites did not show a strong break, as eastern Bering Sea (EBS) herring were more closely related to NE Pacific than to NW Pacific herring. This discordance between mtDNA and microsatellites may be due to microsatellite allelic convergence or to sex-biased dispersal across the secondary contact zone. The sharp discontinuity between Pacific herring populations may be maintained by high-density blocking, competitive exclusion or hybrid inferiority. |
format |
Text |
author |
Liu, Ming Lin, Longshan Gao, Tianxiang Yanagimoto, Takashi Sakurai, Yasunori Grant, W. Stewart |
author_facet |
Liu, Ming Lin, Longshan Gao, Tianxiang Yanagimoto, Takashi Sakurai, Yasunori Grant, W. Stewart |
author_sort |
Liu, Ming |
title |
What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? |
title_short |
What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? |
title_full |
What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? |
title_fullStr |
What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? |
title_full_unstemmed |
What Maintains the Central North Pacific Genetic Discontinuity in Pacific Herring? |
title_sort |
what maintains the central north pacific genetic discontinuity in pacific herring? |
publisher |
Public Library of Science |
publishDate |
2012 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3532504 http://www.ncbi.nlm.nih.gov/pubmed/23300525 https://doi.org/10.1371/journal.pone.0050340 |
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Bering Sea Pacific |
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Bering Sea Pacific |
genre |
Bering Sea Alaska |
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Bering Sea Alaska |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3532504 http://www.ncbi.nlm.nih.gov/pubmed/23300525 http://dx.doi.org/10.1371/journal.pone.0050340 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0050340 |
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PLoS ONE |
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7 |
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12 |
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e50340 |
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