Cargando…

The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province

Molecular-based analysis has become a fundamental tool to understand the role of Quaternary glacial episodes. In the Magellan Province in southern South America, ice covering during the last glacial maximum (20 ka) radically altered the landscape/seascape, speciation rates and distribution of specie...

Descripción completa

Detalles Bibliográficos
Autores principales: Segovia, N. I., González-Wevar, C. A., Naretto, J., Rosenfeld, S., Brickle, P., Hüne, M., Bernal, V., Haye, P. A., Poulin, E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8984805/
https://www.ncbi.nlm.nih.gov/pubmed/35382596
http://dx.doi.org/10.1098/rspb.2021.2738
_version_ 1784682260294795264
author Segovia, N. I.
González-Wevar, C. A.
Naretto, J.
Rosenfeld, S.
Brickle, P.
Hüne, M.
Bernal, V.
Haye, P. A.
Poulin, E.
author_facet Segovia, N. I.
González-Wevar, C. A.
Naretto, J.
Rosenfeld, S.
Brickle, P.
Hüne, M.
Bernal, V.
Haye, P. A.
Poulin, E.
author_sort Segovia, N. I.
collection PubMed
description Molecular-based analysis has become a fundamental tool to understand the role of Quaternary glacial episodes. In the Magellan Province in southern South America, ice covering during the last glacial maximum (20 ka) radically altered the landscape/seascape, speciation rates and distribution of species. For the notothenioid fishes of the genus Harpagifer, in the area are described two nominal species. Nevertheless, this genus recently colonized South America from Antarctica, providing a short time for speciation processes. Combining DNA sequences and genotyping-by-sequencing SNPs, we evaluated the role of Quaternary glaciations over the patterns of genetic structure in Harpagifer across its distribution in the Magellan Province. DNA sequences showed low phylogeographic structure, with shared and dominant haplotypes between nominal species, suggesting a single evolutionary unit. SNPs identified contrastingly two groups in Patagonia and a third well-differentiated group in the Falkland/Malvinas Islands with limited and asymmetric gene flow. Linking the information of different markers allowed us to infer the relevance of postglacial colonization mediated by the general oceanographic circulation patterns. Contrasting rough- and fine-scale genetic patterns highlights the relevance of combined methodologies for species delimitation, which, depending on the question to be addressed, allows discrimination among phylogeographic structure, discarding incipient speciation, and contemporary spatial differentiation processes.
format Online
Article
Text
id pubmed-8984805
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher The Royal Society
record_format MEDLINE/PubMed
spelling pubmed-89848052022-04-20 The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province Segovia, N. I. González-Wevar, C. A. Naretto, J. Rosenfeld, S. Brickle, P. Hüne, M. Bernal, V. Haye, P. A. Poulin, E. Proc Biol Sci Evolution Molecular-based analysis has become a fundamental tool to understand the role of Quaternary glacial episodes. In the Magellan Province in southern South America, ice covering during the last glacial maximum (20 ka) radically altered the landscape/seascape, speciation rates and distribution of species. For the notothenioid fishes of the genus Harpagifer, in the area are described two nominal species. Nevertheless, this genus recently colonized South America from Antarctica, providing a short time for speciation processes. Combining DNA sequences and genotyping-by-sequencing SNPs, we evaluated the role of Quaternary glaciations over the patterns of genetic structure in Harpagifer across its distribution in the Magellan Province. DNA sequences showed low phylogeographic structure, with shared and dominant haplotypes between nominal species, suggesting a single evolutionary unit. SNPs identified contrastingly two groups in Patagonia and a third well-differentiated group in the Falkland/Malvinas Islands with limited and asymmetric gene flow. Linking the information of different markers allowed us to infer the relevance of postglacial colonization mediated by the general oceanographic circulation patterns. Contrasting rough- and fine-scale genetic patterns highlights the relevance of combined methodologies for species delimitation, which, depending on the question to be addressed, allows discrimination among phylogeographic structure, discarding incipient speciation, and contemporary spatial differentiation processes. The Royal Society 2022-04-13 2022-04-06 /pmc/articles/PMC8984805/ /pubmed/35382596 http://dx.doi.org/10.1098/rspb.2021.2738 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Evolution
Segovia, N. I.
González-Wevar, C. A.
Naretto, J.
Rosenfeld, S.
Brickle, P.
Hüne, M.
Bernal, V.
Haye, P. A.
Poulin, E.
The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province
title The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province
title_full The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province
title_fullStr The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province
title_full_unstemmed The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province
title_short The right tool for the right question: contrasting biogeographic patterns in the notothenioid fish Harpagifer spp. along the Magellan Province
title_sort right tool for the right question: contrasting biogeographic patterns in the notothenioid fish harpagifer spp. along the magellan province
topic Evolution
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8984805/
https://www.ncbi.nlm.nih.gov/pubmed/35382596
http://dx.doi.org/10.1098/rspb.2021.2738
work_keys_str_mv AT segoviani therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT gonzalezwevarca therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT narettoj therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT rosenfelds therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT bricklep therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT hunem therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT bernalv therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT hayepa therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT pouline therighttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT segoviani righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT gonzalezwevarca righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT narettoj righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT rosenfelds righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT bricklep righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT hunem righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT bernalv righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT hayepa righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince
AT pouline righttoolfortherightquestioncontrastingbiogeographicpatternsinthenotothenioidfishharpagifersppalongthemagellanprovince