Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales.
The Gulf of California, Mexico is home to many cetacean species, including a presumed resident population of fin whales, Balaenoptera physalus. Past studies reported very low levels of genetic diversity among Gulf of California fin whales and a significant level of genetic differentiation from con-s...
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Online Access: | https://doi.org/10.1038/s41598-019-48700-5 https://pubmed.ncbi.nlm.nih.gov/31455830 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712047/ |
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ftpubmed:31455830 2024-09-09T19:31:41+00:00 Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. Rivera-León, Vania E Urbán, Jorge Mizroch, Sally Brownell, Robert L Oosting, Tom Hao, Wensi Palsbøll, Per J Bérubé, Martine 2019-08-27 https://doi.org/10.1038/s41598-019-48700-5 https://pubmed.ncbi.nlm.nih.gov/31455830 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712047/ eng eng Nature Publishing Group https://doi.org/10.1038/s41598-019-48700-5 https://pubmed.ncbi.nlm.nih.gov/31455830 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712047/ Sci Rep ISSN:2045-2322 Volume:9 Issue:1 Journal Article Research Support, Non-U.S. Gov't 2019 ftpubmed https://doi.org/10.1038/s41598-019-48700-5 2024-07-19T16:02:00Z The Gulf of California, Mexico is home to many cetacean species, including a presumed resident population of fin whales, Balaenoptera physalus. Past studies reported very low levels of genetic diversity among Gulf of California fin whales and a significant level of genetic differentiation from con-specifics in the eastern North Pacific. The aim of the present study was to assess the degree and timing of the isolation of Gulf of California fin whales in a population genetic analysis of 18 nuclear microsatellite genotypes from 402 samples and 565 mitochondrial control region DNA sequences (including mitochondrial sequences retrieved from NCBI). The analyses revealed that the Gulf of California fin whale population was founded ~2.3 thousand years ago and has since remained at a low effective population size (~360) and isolated from the eastern North Pacific (Nem between 0.89-1.4). The low effective population size and high degree of isolation implied that Gulf of California fin whales are vulnerable to the negative effects of genetic drift, human-caused mortality and habitat change. Article in Journal/Newspaper Balaenoptera physalus Fin whale PubMed Central (PMC) Pacific Scientific Reports 9 1 |
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The Gulf of California, Mexico is home to many cetacean species, including a presumed resident population of fin whales, Balaenoptera physalus. Past studies reported very low levels of genetic diversity among Gulf of California fin whales and a significant level of genetic differentiation from con-specifics in the eastern North Pacific. The aim of the present study was to assess the degree and timing of the isolation of Gulf of California fin whales in a population genetic analysis of 18 nuclear microsatellite genotypes from 402 samples and 565 mitochondrial control region DNA sequences (including mitochondrial sequences retrieved from NCBI). The analyses revealed that the Gulf of California fin whale population was founded ~2.3 thousand years ago and has since remained at a low effective population size (~360) and isolated from the eastern North Pacific (Nem between 0.89-1.4). The low effective population size and high degree of isolation implied that Gulf of California fin whales are vulnerable to the negative effects of genetic drift, human-caused mortality and habitat change. |
format |
Article in Journal/Newspaper |
author |
Rivera-León, Vania E Urbán, Jorge Mizroch, Sally Brownell, Robert L Oosting, Tom Hao, Wensi Palsbøll, Per J Bérubé, Martine |
spellingShingle |
Rivera-León, Vania E Urbán, Jorge Mizroch, Sally Brownell, Robert L Oosting, Tom Hao, Wensi Palsbøll, Per J Bérubé, Martine Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. |
author_facet |
Rivera-León, Vania E Urbán, Jorge Mizroch, Sally Brownell, Robert L Oosting, Tom Hao, Wensi Palsbøll, Per J Bérubé, Martine |
author_sort |
Rivera-León, Vania E |
title |
Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. |
title_short |
Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. |
title_full |
Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. |
title_fullStr |
Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. |
title_full_unstemmed |
Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales. |
title_sort |
long-term isolation at a low effective population size greatly reduced genetic diversity in gulf of california fin whales. |
publisher |
Nature Publishing Group |
publishDate |
2019 |
url |
https://doi.org/10.1038/s41598-019-48700-5 https://pubmed.ncbi.nlm.nih.gov/31455830 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712047/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Balaenoptera physalus Fin whale |
genre_facet |
Balaenoptera physalus Fin whale |
op_source |
Sci Rep ISSN:2045-2322 Volume:9 Issue:1 |
op_relation |
https://doi.org/10.1038/s41598-019-48700-5 https://pubmed.ncbi.nlm.nih.gov/31455830 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712047/ |
op_doi |
https://doi.org/10.1038/s41598-019-48700-5 |
container_title |
Scientific Reports |
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9 |
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1 |
_version_ |
1809900534919856128 |