Phylogeographic structure of the pygmy shrew: revisiting the roles of southern and northern refugia in Europe

Journal article


Vega, R., McDevitt, A. D., Stojak, J., Mishta, A., Wójcik, J. M., Kryštufek, B. and Searle, J. B. 2020. Phylogeographic structure of the pygmy shrew: revisiting the roles of southern and northern refugia in Europe. Biological Journal of the Linnean Society.
AuthorsVega, R., McDevitt, A. D., Stojak, J., Mishta, A., Wójcik, J. M., Kryštufek, B. and Searle, J. B.
Abstract

Southern and northern glacial refugia are considered paradigms that explain the complex phylogeographic patterns and processes of European biota. Here, we provide a revisited statistical phylogeographic analysis of the pygmy shrew Sorex minutus Linnaeus, 1766 (Eulipotyphla, Soricidae) examining the genetic diversity, genetic differentiation and demographic history in the Mediterranean peninsulas and in Western and Central Europe. The results showed support for genetically distinct and diverse phylogeographic groups consistent with southern and northern glacial refugia, as expected from previous studies, but also identified geographical barriers concordant with glaciated mountain ranges during the Last Glacial Maximum (LGM), early diversification events dated between the Upper Pleistocene and Lower Holocene for the main phylogeographic groups, and recent (post-LGM) patterns of demographic expansions. This study is the most comprehensive investigation of this species to date, and the results have implications for the conservation of intraspecific diversity and the preservation of the evolutionary potential of S. minutus.

KeywordsMitochondrially encoded cytochrome b; Glacial refugia; Historical demography; Last Glacial Maximum; Mammals; Postglacial colonisation
Year2020
JournalBiological Journal of the Linnean Society
PublisherOxford University Press
ISSN0024-4066
Digital Object Identifier (DOI)doi:10.1101/819912
Official URLhttps://doi.org/10.1101/819912
Publication dates
Online13 Jan 2020
Publication process dates
Accepted23 Dec 2019
Deposited20 Jan 2020
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