Cargando…
Global determinants of freshwater and marine fish genetic diversity
Genetic diversity is estimated to be declining faster than species diversity under escalating threats, but its spatial distribution remains poorly documented at the global scale. Theory predicts that similar processes should foster congruent spatial patterns of genetic and species diversity, but emp...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010757/ https://www.ncbi.nlm.nih.gov/pubmed/32041961 http://dx.doi.org/10.1038/s41467-020-14409-7 |
_version_ | 1783495935628673024 |
---|---|
author | Manel, Stéphanie Guerin, Pierre-Edouard Mouillot, David Blanchet, Simon Velez, Laure Albouy, Camille Pellissier, Loïc |
author_facet | Manel, Stéphanie Guerin, Pierre-Edouard Mouillot, David Blanchet, Simon Velez, Laure Albouy, Camille Pellissier, Loïc |
author_sort | Manel, Stéphanie |
collection | PubMed |
description | Genetic diversity is estimated to be declining faster than species diversity under escalating threats, but its spatial distribution remains poorly documented at the global scale. Theory predicts that similar processes should foster congruent spatial patterns of genetic and species diversity, but empirical studies are scarce. Using a mined database of 50,588 georeferenced mitochondrial DNA barcode sequences (COI) for 3,815 marine and 1,611 freshwater fish species respectively, we examined the correlation between genetic diversity and species diversity and their global distributions in relation to climate and geography. Genetic diversity showed a clear spatial organisation, but a weak association with species diversity for both marine and freshwater species. We found a predominantly positive relationship between genetic diversity and sea surface temperature for marine species. Genetic diversity of freshwater species varied primarily across the regional basins and was negatively correlated with average river slope. The detection of genetic diversity patterns suggests that conservation measures should consider mismatching spatial signals across multiple facets of biodiversity. |
format | Online Article Text |
id | pubmed-7010757 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-70107572020-02-12 Global determinants of freshwater and marine fish genetic diversity Manel, Stéphanie Guerin, Pierre-Edouard Mouillot, David Blanchet, Simon Velez, Laure Albouy, Camille Pellissier, Loïc Nat Commun Article Genetic diversity is estimated to be declining faster than species diversity under escalating threats, but its spatial distribution remains poorly documented at the global scale. Theory predicts that similar processes should foster congruent spatial patterns of genetic and species diversity, but empirical studies are scarce. Using a mined database of 50,588 georeferenced mitochondrial DNA barcode sequences (COI) for 3,815 marine and 1,611 freshwater fish species respectively, we examined the correlation between genetic diversity and species diversity and their global distributions in relation to climate and geography. Genetic diversity showed a clear spatial organisation, but a weak association with species diversity for both marine and freshwater species. We found a predominantly positive relationship between genetic diversity and sea surface temperature for marine species. Genetic diversity of freshwater species varied primarily across the regional basins and was negatively correlated with average river slope. The detection of genetic diversity patterns suggests that conservation measures should consider mismatching spatial signals across multiple facets of biodiversity. Nature Publishing Group UK 2020-02-10 /pmc/articles/PMC7010757/ /pubmed/32041961 http://dx.doi.org/10.1038/s41467-020-14409-7 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Manel, Stéphanie Guerin, Pierre-Edouard Mouillot, David Blanchet, Simon Velez, Laure Albouy, Camille Pellissier, Loïc Global determinants of freshwater and marine fish genetic diversity |
title | Global determinants of freshwater and marine fish genetic diversity |
title_full | Global determinants of freshwater and marine fish genetic diversity |
title_fullStr | Global determinants of freshwater and marine fish genetic diversity |
title_full_unstemmed | Global determinants of freshwater and marine fish genetic diversity |
title_short | Global determinants of freshwater and marine fish genetic diversity |
title_sort | global determinants of freshwater and marine fish genetic diversity |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010757/ https://www.ncbi.nlm.nih.gov/pubmed/32041961 http://dx.doi.org/10.1038/s41467-020-14409-7 |
work_keys_str_mv | AT manelstephanie globaldeterminantsoffreshwaterandmarinefishgeneticdiversity AT guerinpierreedouard globaldeterminantsoffreshwaterandmarinefishgeneticdiversity AT mouillotdavid globaldeterminantsoffreshwaterandmarinefishgeneticdiversity AT blanchetsimon globaldeterminantsoffreshwaterandmarinefishgeneticdiversity AT velezlaure globaldeterminantsoffreshwaterandmarinefishgeneticdiversity AT albouycamille globaldeterminantsoffreshwaterandmarinefishgeneticdiversity AT pellissierloic globaldeterminantsoffreshwaterandmarinefishgeneticdiversity |