Genetic data from the extinct giant rat from Tenerife (Canary Islands) points to a recent divergence from mainland relatives

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• dc.contributor.author Renom, Pere
• dc.contributor.author Dios Martínez, Toni de, 1994-
• dc.contributor.author Civit, Sergi
• dc.contributor.author Llovera Nadal, Laia
• dc.contributor.author Sánchez-Gracia, Alejandro
• dc.contributor.author Lizano González, Esther, 1974-
• dc.contributor.author Rando, Juan Carlos
• dc.contributor.author Marquès i Bonet, Tomàs, 1975-
• dc.contributor.author Kergoat, Gael J.
• dc.contributor.author Casanovas-Vilar, Isaac
• dc.contributor.author Lalueza Fox, Carles, 1965-
• dc.date.accessioned 2022-02-14T07:43:17Z
• dc.date.available 2022-02-14T07:43:17Z
• dc.date.issued 2021
• dc.description.abstract Evolution of vertebrate endemics in oceanic islands follows a predictable pattern, known as the island rule, according to which gigantism arises in originally small-sized species and dwarfism in large ones. Species of extinct insular giant rodents are known from all over the world. In the Canary Islands, two examples of giant rats, †Canariomys bravoi and †Canariomys tamarani, endemic to Tenerife and Gran Canaria, respectively, disappeared soon after human settlement. The highly derived morphological features of these insular endemic rodents hamper the reconstruction of their evolutionary histories. We have retrieved partial nuclear and mitochondrial data from †C. bravoi and used this information to explore its evolutionary affinities. The resulting dated phylogeny confidently places †C. bravoi within the African grass rat clade (Arvicanthis niloticus). The estimated divergence time, 650 000 years ago (95% higher posterior densities: 373 000-944 000), points toward an island colonization during the Günz-Mindel interglacial stage. †Canariomys bravoi ancestors would have reached the island via passive rafting and then underwent a yearly increase of mean body mass calculated between 0.0015 g and 0.0023 g; this corresponds to fast evolutionary rates (in darwins (d), ranging from 7.09 d to 2.78 d) that are well above those observed for non-insular mammals.
• dc.description.sponsorship C.L.-F. is supported by a PGC2018-0955931-B-100 grant (MCIU/AEI/FEDER, UE) of Spain; T.M.-B. is supported by funding from the European Research Council (ERC) (grant agreement no. 864203), BFU2017-86471-P (MINECO/FEDER, UE), ‘Unidad de Excelencia María de Maeztu’, funded by the AEI (CEX2018-000792-M), Howard Hughes International Early Career and Generalitat de Catalunya (CERCA Programme and 2017 SGR 880); I.C.-V. is supported by grant nos. I+D+i PID2020-117289GBI00 funded by MCIN/AEI/10.13039/501100011033/, the MINECO (RYC-2013-12470) and the Generalitat de Catalunya (CERCA Programme and 2017 SGR 116).
• dc.format.mimetype application/pdf
• dc.identifier.citation Renom P, de-Dios T, Civit S, Llovera L, Sánchez-Gracia A, Lizano E, Rando JC, Marquès-Bonet T, Kergoat GJ, Casanovas-Vilar I, Lalueza-Fox C. Genetic data from the extinct giant rat from Tenerife (Canary Islands) points to a recent divergence from mainland relatives. Biol Lett. 2021;17(12):20210533. DOI: 10.1098/rsbl.2021.0533
• dc.identifier.doi http://dx.doi.org/10.1098/rsbl.2021.0533
• dc.identifier.issn 1744-9561
• dc.identifier.uri http://hdl.handle.net/10230/52481
• dc.language.iso eng
• dc.publisher Royal Society
• dc.relation.ispartof Biol Lett. 2021;17(12):20210533
• dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/864203
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/PGC2018-0955931-B-100
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/BFU2017-86471-P
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/PID2020-117289GB-I00
• dc.relation.projectID info:eu-repo/grantAgreement/ES/1PE/RYC-2013-12470
• dc.rights © 2021 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.rights.uri http://creativecommons.org/licenses/by/4.0/
• dc.subject.keyword Ancient DNA
• dc.subject.keyword Body mass
• dc.subject.keyword Gigantism
• dc.subject.keyword Insular evolution
• dc.subject.keyword Molecular phylogeny
• dc.subject.keyword Rodents
• dc.title Genetic data from the extinct giant rat from Tenerife (Canary Islands) points to a recent divergence from mainland relatives
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/publishedVersion