Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate
Research on the genetics of invasive species often focuses on patterns of genetic diversity and population structure within the introduced range. However, a growing body of literature is demonstrating the need to study how native genotypes affect both ecological and evolutionary mechanisms within th...
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ftpubmed:oai:pubmedcentral.nih.gov:7045719 2023-05-15T17:45:34+02:00 Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate Hudson, Jamie Johannesson, Kerstin McQuaid, Christopher D. Rius, Marc 2019-12-03 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045719/ https://doi.org/10.1111/eva.12893 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045719/ http://dx.doi.org/10.1111/eva.12893 © 2019 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Evol Appl Special Issue Original Articles Text 2019 ftpubmed https://doi.org/10.1111/eva.12893 2020-05-24T00:19:10Z Research on the genetics of invasive species often focuses on patterns of genetic diversity and population structure within the introduced range. However, a growing body of literature is demonstrating the need to study how native genotypes affect both ecological and evolutionary mechanisms within the introduced range. Here, we used genotyping‐by‐sequencing to study both native and introduced ranges of the amphiatlantic marine invertebrate Ciona intestinalis. A previous study using microsatellites analysed samples collected along the Swedish west coast and showed the presence of genetically distinct lineages in deep and shallow waters. Using 1,653 single nucleotide polymorphisms (SNPs) from newly collected samples (285 individuals), we first confirmed the presence of this depth‐defined genomic divergence along the Swedish coast. We then used approximate Bayesian computation to infer the historical relationship among sites from the North Sea, the English Channel and the northwest Atlantic and found evidence of ancestral divergence between individuals from deep waters off Sweden and individuals from the English Channel. This divergence was followed by a secondary contact that led to a genetic admixture between the ancestral populations (i.e., deep Sweden and English Channel), which originated the genotypes found in shallow Sweden. We then revealed that the colonization of C. intestinalis in the northwest Atlantic was as a result of an admixture between shallow Sweden and the English Channel genotypes across the introduced range. Our results showed the presence of both past and recent genetic admixture events that together may have promoted the successful colonizations of C. intestinalis. Our study suggests that secondary contacts potentially reshape the evolutionary trajectories of invasive species through the promotion of intraspecific hybridization and by altering both colonization patterns and their ecological effects in the introduced range. Text Northwest Atlantic PubMed Central (PMC) Evolutionary Applications 13 3 600 612 |
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Special Issue Original Articles Hudson, Jamie Johannesson, Kerstin McQuaid, Christopher D. Rius, Marc Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
topic_facet |
Special Issue Original Articles |
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Research on the genetics of invasive species often focuses on patterns of genetic diversity and population structure within the introduced range. However, a growing body of literature is demonstrating the need to study how native genotypes affect both ecological and evolutionary mechanisms within the introduced range. Here, we used genotyping‐by‐sequencing to study both native and introduced ranges of the amphiatlantic marine invertebrate Ciona intestinalis. A previous study using microsatellites analysed samples collected along the Swedish west coast and showed the presence of genetically distinct lineages in deep and shallow waters. Using 1,653 single nucleotide polymorphisms (SNPs) from newly collected samples (285 individuals), we first confirmed the presence of this depth‐defined genomic divergence along the Swedish coast. We then used approximate Bayesian computation to infer the historical relationship among sites from the North Sea, the English Channel and the northwest Atlantic and found evidence of ancestral divergence between individuals from deep waters off Sweden and individuals from the English Channel. This divergence was followed by a secondary contact that led to a genetic admixture between the ancestral populations (i.e., deep Sweden and English Channel), which originated the genotypes found in shallow Sweden. We then revealed that the colonization of C. intestinalis in the northwest Atlantic was as a result of an admixture between shallow Sweden and the English Channel genotypes across the introduced range. Our results showed the presence of both past and recent genetic admixture events that together may have promoted the successful colonizations of C. intestinalis. Our study suggests that secondary contacts potentially reshape the evolutionary trajectories of invasive species through the promotion of intraspecific hybridization and by altering both colonization patterns and their ecological effects in the introduced range. |
format |
Text |
author |
Hudson, Jamie Johannesson, Kerstin McQuaid, Christopher D. Rius, Marc |
author_facet |
Hudson, Jamie Johannesson, Kerstin McQuaid, Christopher D. Rius, Marc |
author_sort |
Hudson, Jamie |
title |
Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
title_short |
Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
title_full |
Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
title_fullStr |
Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
title_full_unstemmed |
Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
title_sort |
secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate |
publisher |
John Wiley and Sons Inc. |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045719/ https://doi.org/10.1111/eva.12893 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Evol Appl |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045719/ http://dx.doi.org/10.1111/eva.12893 |
op_rights |
© 2019 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/eva.12893 |
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Evolutionary Applications |
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600 |
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612 |
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