Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis
Abstract Background Hybridization or divergence between sympatric sister species provides a natural laboratory to study speciation processes. The shared polymorphism in sister species may either be ancestral or derive from hybridization, and the accuracy of analytic methods used thus far to derive c...
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Springer Science and Business Media LLC
2011
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Online Access: | http://dx.doi.org/10.1186/1471-2148-11-33 http://link.springer.com/content/pdf/10.1186/1471-2148-11-33.pdf http://link.springer.com/article/10.1186/1471-2148-11-33/fulltext.html https://link.springer.com/content/pdf/10.1186/1471-2148-11-33.pdf |
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crspringernat:10.1186/1471-2148-11-33 2023-05-15T17:34:40+02:00 Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis Moalic, Yann Arnaud-Haond, Sophie Perrin, Cécile Pearson, Gareth A Serrao, Ester A 2011 http://dx.doi.org/10.1186/1471-2148-11-33 http://link.springer.com/content/pdf/10.1186/1471-2148-11-33.pdf http://link.springer.com/article/10.1186/1471-2148-11-33/fulltext.html https://link.springer.com/content/pdf/10.1186/1471-2148-11-33.pdf en eng Springer Science and Business Media LLC http://www.springer.com/tdm BMC Evolutionary Biology volume 11, issue 1 ISSN 1471-2148 Ecology, Evolution, Behavior and Systematics journal-article 2011 crspringernat https://doi.org/10.1186/1471-2148-11-33 2022-01-04T12:51:13Z Abstract Background Hybridization or divergence between sympatric sister species provides a natural laboratory to study speciation processes. The shared polymorphism in sister species may either be ancestral or derive from hybridization, and the accuracy of analytic methods used thus far to derive convincing evidence for the occurrence of present day hybridization is largely debated. Results Here we propose the application of network analysis to test for the occurrence of present day hybridization between the two species of brown algae Fucus spiralis and F. vesiculosus . Individual-centered networks were analyzed on the basis of microsatellite genotypes from North Africa to the Pacific American coast, through the North Atlantic. Two genetic distances integrating different time steps were used, the Rozenfeld (RD; based on alleles divergence) and the Shared Allele (SAD; based on alleles identity) distances. A diagnostic level of genotype divergence and clustering of individuals from each species was obtained through RD while screening for exchanges through putative hybridization was facilitated using SAD. Intermediate individuals linking both clusters on the RD network were those sampled at the limits of the sympatric zone in Northwest Iberia. Conclusion These results suggesting rare hybridization were confirmed by simulation of hybrids and F2 with directed backcrosses. Comparison with the Bayesian method STRUCTURE confirmed the usefulness of both approaches and emphasized the reliability of network analysis to unravel and study hybridization Article in Journal/Newspaper North Atlantic Springer Nature (via Crossref) Pacific BMC Evolutionary Biology 11 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Moalic, Yann Arnaud-Haond, Sophie Perrin, Cécile Pearson, Gareth A Serrao, Ester A Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract Background Hybridization or divergence between sympatric sister species provides a natural laboratory to study speciation processes. The shared polymorphism in sister species may either be ancestral or derive from hybridization, and the accuracy of analytic methods used thus far to derive convincing evidence for the occurrence of present day hybridization is largely debated. Results Here we propose the application of network analysis to test for the occurrence of present day hybridization between the two species of brown algae Fucus spiralis and F. vesiculosus . Individual-centered networks were analyzed on the basis of microsatellite genotypes from North Africa to the Pacific American coast, through the North Atlantic. Two genetic distances integrating different time steps were used, the Rozenfeld (RD; based on alleles divergence) and the Shared Allele (SAD; based on alleles identity) distances. A diagnostic level of genotype divergence and clustering of individuals from each species was obtained through RD while screening for exchanges through putative hybridization was facilitated using SAD. Intermediate individuals linking both clusters on the RD network were those sampled at the limits of the sympatric zone in Northwest Iberia. Conclusion These results suggesting rare hybridization were confirmed by simulation of hybrids and F2 with directed backcrosses. Comparison with the Bayesian method STRUCTURE confirmed the usefulness of both approaches and emphasized the reliability of network analysis to unravel and study hybridization |
format |
Article in Journal/Newspaper |
author |
Moalic, Yann Arnaud-Haond, Sophie Perrin, Cécile Pearson, Gareth A Serrao, Ester A |
author_facet |
Moalic, Yann Arnaud-Haond, Sophie Perrin, Cécile Pearson, Gareth A Serrao, Ester A |
author_sort |
Moalic, Yann |
title |
Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis |
title_short |
Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis |
title_full |
Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis |
title_fullStr |
Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis |
title_full_unstemmed |
Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis |
title_sort |
travelling in time with networks: revealing present day hybridization versus ancestral polymorphism between two species of brown algae, fucus vesiculosus and f. spiralis |
publisher |
Springer Science and Business Media LLC |
publishDate |
2011 |
url |
http://dx.doi.org/10.1186/1471-2148-11-33 http://link.springer.com/content/pdf/10.1186/1471-2148-11-33.pdf http://link.springer.com/article/10.1186/1471-2148-11-33/fulltext.html https://link.springer.com/content/pdf/10.1186/1471-2148-11-33.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
BMC Evolutionary Biology volume 11, issue 1 ISSN 1471-2148 |
op_rights |
http://www.springer.com/tdm |
op_doi |
https://doi.org/10.1186/1471-2148-11-33 |
container_title |
BMC Evolutionary Biology |
container_volume |
11 |
container_issue |
1 |
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1766133566137171968 |