Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering?
The recent increased integration of evolutionary theory into conservation programs has greatly improved our ability to protect endangered species. A common application of such theory links population dynamics and indices of genetic diversity, usually estimated from neutrally evolving markers. Howeve...
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ftopenagrar:oai:www.openagrar.de:openagrar_mods_00022398 2023-05-15T13:27:54+02:00 Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? Baltazar-Soares, Miguel Bracamonte, Seraina E. Bayer, Till Chain, Frederic J. Hanel, Reinhold Harrod, Chris Eizaguirre, Christophe 2016 https://doi.org/10.7717/peerj.1868 https://www.openagrar.de/receive/openagrar_mods_00022398 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00000397/dn057312.pdf https://peerj.com/articles/1868/ eng eng PeerJ -- 2167-8359 -- 2703241-3 -- https://peerj.com -- http://ezb.uni-regensburg.de/?2703241 https://doi.org/10.7717/peerj.1868 https://www.openagrar.de/receive/openagrar_mods_00022398 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00000397/dn057312.pdf https://peerj.com/articles/1868/ public https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess CC-BY Text ddc:590 major histocompatibility complex -- temporal analyses -- adaptive potential -- population dynamics -- European eel article Text 2016 ftopenagrar https://doi.org/10.7717/peerj.1868 2023-03-06T00:13:22Z The recent increased integration of evolutionary theory into conservation programs has greatly improved our ability to protect endangered species. A common application of such theory links population dynamics and indices of genetic diversity, usually estimated from neutrally evolving markers. However, some studies have suggested that highly polymorphic adaptive genes, such as the immune genes of the Major Histocompatibility Complex (MHC), might be more sensitive to fluctuations in population dynamics. As such, the combination of neutrally- and adaptively-evolving genes may be informative in populations where reductions in abundance have been documented. The European eel (Anguilla anguilla) underwent a drastic and well-reported decline in abundance in the late 20th century and still displays low recruitment. Here we compared genetic diversity indices estimated from neutral (mitochondrial DNA and microsatellites) and adaptive markers (MHC) between two distinct generations of European eels. Our results revealed a clear discrepancy between signatures obtained for each class of markers. Although mtDNA and microsatellites showed no changes in diversity between the older and the younger generations, MHC diversity revealed a contemporary drop followed by a recent increase. Our results suggest ongoing gain of MHC genetic diversity resulting from the interplay between drift and selection and ultimately increasing the adaptive potential of the species. Article in Journal/Newspaper Anguilla anguilla European eel OpenAgrar (OA) PeerJ 4 e1868 |
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Text ddc:590 major histocompatibility complex -- temporal analyses -- adaptive potential -- population dynamics -- European eel |
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Text ddc:590 major histocompatibility complex -- temporal analyses -- adaptive potential -- population dynamics -- European eel Baltazar-Soares, Miguel Bracamonte, Seraina E. Bayer, Till Chain, Frederic J. Hanel, Reinhold Harrod, Chris Eizaguirre, Christophe Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? |
topic_facet |
Text ddc:590 major histocompatibility complex -- temporal analyses -- adaptive potential -- population dynamics -- European eel |
description |
The recent increased integration of evolutionary theory into conservation programs has greatly improved our ability to protect endangered species. A common application of such theory links population dynamics and indices of genetic diversity, usually estimated from neutrally evolving markers. However, some studies have suggested that highly polymorphic adaptive genes, such as the immune genes of the Major Histocompatibility Complex (MHC), might be more sensitive to fluctuations in population dynamics. As such, the combination of neutrally- and adaptively-evolving genes may be informative in populations where reductions in abundance have been documented. The European eel (Anguilla anguilla) underwent a drastic and well-reported decline in abundance in the late 20th century and still displays low recruitment. Here we compared genetic diversity indices estimated from neutral (mitochondrial DNA and microsatellites) and adaptive markers (MHC) between two distinct generations of European eels. Our results revealed a clear discrepancy between signatures obtained for each class of markers. Although mtDNA and microsatellites showed no changes in diversity between the older and the younger generations, MHC diversity revealed a contemporary drop followed by a recent increase. Our results suggest ongoing gain of MHC genetic diversity resulting from the interplay between drift and selection and ultimately increasing the adaptive potential of the species. |
format |
Article in Journal/Newspaper |
author |
Baltazar-Soares, Miguel Bracamonte, Seraina E. Bayer, Till Chain, Frederic J. Hanel, Reinhold Harrod, Chris Eizaguirre, Christophe |
author_facet |
Baltazar-Soares, Miguel Bracamonte, Seraina E. Bayer, Till Chain, Frederic J. Hanel, Reinhold Harrod, Chris Eizaguirre, Christophe |
author_sort |
Baltazar-Soares, Miguel |
title |
Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? |
title_short |
Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? |
title_full |
Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? |
title_fullStr |
Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? |
title_full_unstemmed |
Evaluating the adaptive potential of the European eel: is the immunogenetic status recovering? |
title_sort |
evaluating the adaptive potential of the european eel: is the immunogenetic status recovering? |
publishDate |
2016 |
url |
https://doi.org/10.7717/peerj.1868 https://www.openagrar.de/receive/openagrar_mods_00022398 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00000397/dn057312.pdf https://peerj.com/articles/1868/ |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
PeerJ -- 2167-8359 -- 2703241-3 -- https://peerj.com -- http://ezb.uni-regensburg.de/?2703241 https://doi.org/10.7717/peerj.1868 https://www.openagrar.de/receive/openagrar_mods_00022398 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00000397/dn057312.pdf https://peerj.com/articles/1868/ |
op_rights |
public https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7717/peerj.1868 |
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PeerJ |
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4 |
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e1868 |
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1766401050880770048 |