Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict

The Montseny brook newt (Calotriton arnoldi), considered the most endangered amphibian in Europe, is a relict salamandrid species endemic to a small massif located in northeastern Spain. Although conservation efforts should always be guided by genomic studies, those are yet scarce among urodeles, ha...

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Detalles Bibliográficos
Autores: Talavera, Adrián, Burriel-Carranza, Bernat, Carranza, Salvador
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2072/537192
Acceso en línea:http://hdl.handle.net/2072/537192
https://doi.org/10.1016/j.isci.2023.108665
Access Level:acceso abierto
Palabra clave:Amfibis
Urodels
Montseny (Catalunya : Massís)
Genètica de poblacions
59
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spelling Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relictTalavera, AdriánBurriel-Carranza, BernatCarranza, SalvadorAmfibisUrodelsMontseny (Catalunya : Massís)Genètica de poblacions59The Montseny brook newt (Calotriton arnoldi), considered the most endangered amphibian in Europe, is a relict salamandrid species endemic to a small massif located in northeastern Spain. Although conservation efforts should always be guided by genomic studies, those are yet scarce among urodeles, hampered by the extreme sizes of their genomes. Here, we present the third available genome assembly for the order Caudata, and the first genomic study of the species and its sister taxon, the Pyrenean brook newt (Calotriton asper), combining whole-genome and ddRADseq data. Our results reveal significant demographic oscillations which accurately mirrored Europe’s climatic history. Although severe bottlenecks have led to depauperate genomic diversity and long runs of homozygosity along a gigantic genome, inbreeding might have been avoided by assortative mating strategies. Other life history traits, however, seem to have been less advantageous, and the lack of land dispersal has driven to exceptional levels of population fragmentation.2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion18 p.application/pdfhttp://hdl.handle.net/2072/537192https://doi.org/10.1016/j.isci.2023.108665RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésiScience 27, 108665 (2024)L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: (http://creativecommons.org/licenses/by-nc-nd/4.0/). (C) 2023 The Authorsinfo:eu-repo/semantics/openAccessoai:recercat.cat:2072/5371922026-05-29T05:05:01Z
dc.title.none.fl_str_mv Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
title Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
spellingShingle Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
Talavera, Adrián
Amfibis
Urodels
Montseny (Catalunya : Massís)
Genètica de poblacions
59
title_short Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
title_full Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
title_fullStr Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
title_full_unstemmed Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
title_sort Genomic insights into the Montseny brook newt (Calotriton arnoldi), a critically endangered glacial relict
dc.creator.none.fl_str_mv Talavera, Adrián
Burriel-Carranza, Bernat
Carranza, Salvador
author Talavera, Adrián
author_facet Talavera, Adrián
Burriel-Carranza, Bernat
Carranza, Salvador
author_role author
author2 Burriel-Carranza, Bernat
Carranza, Salvador
author2_role author
author
dc.subject.none.fl_str_mv Amfibis
Urodels
Montseny (Catalunya : Massís)
Genètica de poblacions
59
topic Amfibis
Urodels
Montseny (Catalunya : Massís)
Genètica de poblacions
59
description The Montseny brook newt (Calotriton arnoldi), considered the most endangered amphibian in Europe, is a relict salamandrid species endemic to a small massif located in northeastern Spain. Although conservation efforts should always be guided by genomic studies, those are yet scarce among urodeles, hampered by the extreme sizes of their genomes. Here, we present the third available genome assembly for the order Caudata, and the first genomic study of the species and its sister taxon, the Pyrenean brook newt (Calotriton asper), combining whole-genome and ddRADseq data. Our results reveal significant demographic oscillations which accurately mirrored Europe’s climatic history. Although severe bottlenecks have led to depauperate genomic diversity and long runs of homozygosity along a gigantic genome, inbreeding might have been avoided by assortative mating strategies. Other life history traits, however, seem to have been less advantageous, and the lack of land dispersal has driven to exceptional levels of population fragmentation.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/2072/537192
https://doi.org/10.1016/j.isci.2023.108665
url http://hdl.handle.net/2072/537192
https://doi.org/10.1016/j.isci.2023.108665
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv iScience 27, 108665 (2024)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 18 p.
application/pdf
dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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