Southern and northern glacial refugia are considered paradigms that explain the complex phylogeographical patterns and processes of European biota. Here, we provide a revisited statistical phylogeographical analysis of the pygmy shrew Sorex minutus Linnaeus, 1766 (Eulipotyphla, Soricidae), examining its 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 phylogeographical groups consistent with southern and northern glacial refugia, as expected from previous studies. We also identified geographical barriers concordant with glaciated mountain ranges during the Last Glacial Maximum (LGM), early diversification events dated between the Late Pleistocene and Early Holocene for the main phylogeographical 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.

中文翻译：

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侏儒sh的系统地理结构：重新审视欧洲南部和北部避难所的作用

南部和北部冰川避难所被认为是解释欧洲生物群复杂的植物地理学模式和过程的范例。在这里，我们提供了对侏儒S Sorex minutus的再统计统计学系统分析。Linnaeus，1766年（Eulipotyphla，Soricidae），研究了其在地中海半岛以及西欧和中欧的遗传多样性，遗传分化和人口历史。结果表明，与先前研究预期的一样，对与南方和北部冰川避难所相一致的遗传上不同的系统地理学群体的支持。我们还确定了与末次冰河期（LGM）期间冰川山脉相适应的地理障碍，主要植物地理学组群的晚更新世和早全新世之间的早期多样化事件，以及人口膨胀的近期（后LGM）模式。这项研究是迄今为止对该物种最全面的调查，小肠链球菌。