Reconstruction of Pleistocene Evolutionary History of the Root Vole Alexandromys oeconomus (Cricetidae, Rodentia) in Northern Asia
Rattachement africain : ru, mn. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Previous phylogeographic study of the root vole (Alexandromys oeconomus) revealed four mitochondrial cytochrome b lineages – North and Central European, North (=Central) Asian and Beringian. Three of them were studied in detail, while the North Asian lineage, which occupies the most extensive territory and considered to be the place of origin for the species, was understudied. In the framework of the current study we obtained 95 new sequences (34 localities) from the wide territory of Northern Asia and in total examined 940 specimens from 181 localities throughout the species distribution range. North Asian lineage occurred to be more diverse than the Beringian and both European lineages. Southern Siberia and especially the Altai-Sayan region displayed the highest haplotype and nucleotide diversity, suggesting the region's role as a genetic diversity hotspot. We suppose that expansion of the North Asian lineage started from Western Transbaikalia. Its representatives colonised the territory from Urals to the northern shore of the Okhotsk Sea, and then spread in the opposite direction, to Southern Siberia. As a result, a mixture of haplogroups is observed in the Altai-Sayan region. According to the BEAST analysis calibrated with first A. oeconomus records, MRCA of North Asian and Beringian lineages is dated back to ~0.82 Mya, and the first divergence within the North Asian lineage may have occurred ~0.6 Mya. When compared with colonisation times of other representatives of the Arvicolinae subfamily, our dating seems to be overestimated. In this regard, molecular data for dated fossil remains of the root vole are essential for the subsequent studies.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.
- Titre Crossref
- Reconstruction of Pleistocene Evolutionary History of the Root Vole <em>Alexandromys oeconomus </em>(Cricetidae, Rodentia) in Northern Asia
- Date Crossref
- 30/06/2025
- Éditeur
- MDPI AG
- Type
- posted-content
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Zoological Institute pays non établi dans la noticeInstitution
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Severtsov Institute of Ecology and Evolution pays non établi dans la noticeStructure de recherche
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Tuvan State University Department of Biology and Ecology pays non établi dans la noticeUniversité ou école supérieure
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Mongolian Academy of Sciences pays non établi dans la noticeOrganisme public
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Laboratory of Evolutionary Genomics and Paleogenomics pays non établi dans la noticeStructure de recherche
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Laboratory of Mammalian microevolution pays non établi dans la noticeStructure de recherche
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Institute of Biology pays non établi dans la noticeStructure de recherche
Zoological Institute, Severtsov Institute of Ecology and Evolution et Department of Biology and Ecology — Tuvan State University, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.