A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations

Aim: Phylogeography of fruit trees is challenging due to recurrent exchanges between domesticated and wild populations. Here we tested the eastern refugium hypothesis (ERH) for the carob tree, Ceratonia siliqua, which supports its natural and domestication origins in the eastern Mediterranean and a...

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Autores: Viruel, Juan, Le Galliot, Nicolas, Pironon, Samuel, Nieto Feliner, Gonzalo, Suc, J.P., Lakhal-Mirleau, F., Juin, M., Selva, M., Bou Dagher-Kharrat, Magda, Ouahmane, L., La Malfa, Stefano, Diadema, K., Sanguin, H., Médail, F., Baumel, A.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/233489
Acceso en línea:http://hdl.handle.net/10261/233489
Access Level:acceso abierto
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spelling A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populationsViruel, JuanLe Galliot, NicolasPironon, SamuelNieto Feliner, GonzaloSuc, J.P.Lakhal-Mirleau, F.Juin, M.Selva, M.Bou Dagher-Kharrat, MagdaOuahmane, L.La Malfa, StefanoDiadema, K.Sanguin, H.Médail, F.Baumel, A.Aim: Phylogeography of fruit trees is challenging due to recurrent exchanges between domesticated and wild populations. Here we tested the eastern refugium hypothesis (ERH) for the carob tree, Ceratonia siliqua, which supports its natural and domestication origins in the eastern Mediterranean and a feral origin in the west. Location: Mediterranean basin. Taxon: Ceratonia siliqua L., Leguminosae. Methods: A phylogenetic reconstruction based on two nuclear and one plastid sequences was performed to estimate the divergence time between the carob tree and its sister species, Ceratonia oreothauma. Variation from four plastid regions and 17 nuclear microsatellite loci were used to decipher genetic structure in the carob tree and to test coalescent-based models by an Approximate Bayesian computation (ABC) approach. We assessed our hypotheses by examining palaeobotanical records and hindcasting the past distribution of the carob tree at Mid-Holocene, Last Glacial Maximum (LGM) and Last Interglacial (LIG) using species distribution modelling. Results: The split between C. oreothauma and C. siliqua was estimated at 6.4 Ma, and a first divergence within C. siliqua at 1.3 Ma. After a continuous presence since the Oligocene, Ceratonia was rarely found in the fossil record during the Pleistocene but present in the western and the eastern Mediterranean. Plastid and nuclear markers, characterized by low allelic richness, revealed a strong west-east genetic structuring. ABC analyses rejected the ERH. Main conclusions: Our study supports a severe population decline during LIG. The strong west–east divergence and the occurrence of four lineages within C. siliqua provided support for a new hypothesis of multiple domestications of the carob tree from native populations throughout the Mediterranean basin.Blackwell PublishingConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/233489reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/jbi.13726Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2334892026-05-22T06:33:51Z
dc.title.none.fl_str_mv A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
title A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
spellingShingle A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
Viruel, Juan
title_short A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
title_full A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
title_fullStr A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
title_full_unstemmed A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
title_sort A strong east–west Mediterranean divergence supports a new phylogeographic history of the carob tree (Ceratonia siliqua, Leguminosae) and multiple domestications from native populations
dc.creator.none.fl_str_mv Viruel, Juan
Le Galliot, Nicolas
Pironon, Samuel
Nieto Feliner, Gonzalo
Suc, J.P.
Lakhal-Mirleau, F.
Juin, M.
Selva, M.
Bou Dagher-Kharrat, Magda
Ouahmane, L.
La Malfa, Stefano
Diadema, K.
Sanguin, H.
Médail, F.
Baumel, A.
author Viruel, Juan
author_facet Viruel, Juan
Le Galliot, Nicolas
Pironon, Samuel
Nieto Feliner, Gonzalo
Suc, J.P.
Lakhal-Mirleau, F.
Juin, M.
Selva, M.
Bou Dagher-Kharrat, Magda
Ouahmane, L.
La Malfa, Stefano
Diadema, K.
Sanguin, H.
Médail, F.
Baumel, A.
author_role author
author2 Le Galliot, Nicolas
Pironon, Samuel
Nieto Feliner, Gonzalo
Suc, J.P.
Lakhal-Mirleau, F.
Juin, M.
Selva, M.
Bou Dagher-Kharrat, Magda
Ouahmane, L.
La Malfa, Stefano
Diadema, K.
Sanguin, H.
Médail, F.
Baumel, A.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Aim: Phylogeography of fruit trees is challenging due to recurrent exchanges between domesticated and wild populations. Here we tested the eastern refugium hypothesis (ERH) for the carob tree, Ceratonia siliqua, which supports its natural and domestication origins in the eastern Mediterranean and a feral origin in the west. Location: Mediterranean basin. Taxon: Ceratonia siliqua L., Leguminosae. Methods: A phylogenetic reconstruction based on two nuclear and one plastid sequences was performed to estimate the divergence time between the carob tree and its sister species, Ceratonia oreothauma. Variation from four plastid regions and 17 nuclear microsatellite loci were used to decipher genetic structure in the carob tree and to test coalescent-based models by an Approximate Bayesian computation (ABC) approach. We assessed our hypotheses by examining palaeobotanical records and hindcasting the past distribution of the carob tree at Mid-Holocene, Last Glacial Maximum (LGM) and Last Interglacial (LIG) using species distribution modelling. Results: The split between C. oreothauma and C. siliqua was estimated at 6.4 Ma, and a first divergence within C. siliqua at 1.3 Ma. After a continuous presence since the Oligocene, Ceratonia was rarely found in the fossil record during the Pleistocene but present in the western and the eastern Mediterranean. Plastid and nuclear markers, characterized by low allelic richness, revealed a strong west-east genetic structuring. ABC analyses rejected the ERH. Main conclusions: Our study supports a severe population decline during LIG. The strong west–east divergence and the occurrence of four lineages within C. siliqua provided support for a new hypothesis of multiple domestications of the carob tree from native populations throughout the Mediterranean basin.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/233489
url http://hdl.handle.net/10261/233489
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/jbi.13726

dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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