Demography and evolutionary history of grey wolf populations around the Bering Strait.

Autor: Pacheco C; CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, Portugal.; Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, Vairão, Portugal., Stronen AV; Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia.; Department of Biotechnology and Life Sciences, Insubria University, Varese, Italy.; Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark., Jędrzejewska B; Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland., Plis K; Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland., Okhlopkov IM; Institute of Biological Problems of Cryolithozone, Siberian Branch of Russian Academy of Sciences, Yakutsk, Russia., Mamaev NV; Institute of Biological Problems of Cryolithozone, Siberian Branch of Russian Academy of Sciences, Yakutsk, Russia., Drovetski SV; Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, USA., Godinho R; CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, Portugal.; Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, Vairão, Portugal.
Jazyk: angličtina
Zdroj: Molecular ecology [Mol Ecol] 2022 Sep; Vol. 31 (18), pp. 4851-4865. Date of Electronic Publication: 2022 Jul 29.
DOI: 10.1111/mec.16613
Abstrakt: Glacial and interglacial periods throughout the Pleistocene have been substantial drivers of change in species distributions. Earlier analyses suggested that modern grey wolves (Canis lupus) trace their origin to a single Late Pleistocene Beringian population that expanded east and westwards, starting c. 25,000 years ago (ya). Here, we examined the demographic and phylogeographic histories of extant populations around the Bering Strait with wolves from two inland regions of the Russian Far East (RFE) and one coastal and two inland regions of North-western North America (NNA), genotyped for 91,327 single nucleotide polymorphisms. Our results indicated that RFE and NNA wolves had a common ancestry until c. 34,400 ya, suggesting that these populations started to diverge before the previously proposed expansion out of Beringia. Coastal and inland NNA populations diverged c. 16,000 ya, concordant with the minimum proposed date for the ecological viability of the migration route along the Pacific Northwest coast. Demographic reconstructions for inland RFE and NNA populations reveal spatial and temporal synchrony, with large historical effective population sizes that declined throughout the Pleistocene, possibly reflecting the influence of broadscale climatic changes across continents. In contrast, coastal NNA wolves displayed a consistently lower effective population size than the inland populations. Differences between the demographic history of inland and coastal wolves may have been driven by multiple ecological factors, including historical gene flow patterns, natural landscape fragmentation, and more recent anthropogenic disturbance.
(© 2022 The Authors. Molecular Ecology published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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