A range-wide phylogeographic study of the common shrew Sorex araneus was performed using the concatenation of cytb and ND2 mitochondrial genes. The data support two major lineages, one of which (European haplogroup) is distributed continuously from West Europe to West Siberia; the other (Siberian haplogroup) is found in two non-adjacent areas: in central Siberia and in southern Finland and Karelia. Several smaller subclades (East European, Balkan, and West Siberian) were identified within the European lineage. Ancestral area reconstructions were performed under the maximum parsimony criterion using the algorithm that was designed to analyze landmark data. The results suggest that the last common ancestor of the common shrew inhabited the Balkans or the Danubian-Carpathian area. The results of demographic analyses are consistent with the hypothesis of recent expansion throughout the entire distribution range. The genetic diversity indices and the expansion time estimates were higher in the western part of the range. Cumulatively, these findings support the hypothesis that during the Last Glacial Maximum, the range of the common shrew was restricted to a single refugium in Southeastern Europe.

中文翻译：

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共同的故事永无止境的故事：寻找起源。

使用cytb和ND2的组合对普通shSorex araneus进行了范围广泛的系统地理学研究线粒体基因。数据支持两个主要谱系，其中一个谱系（欧洲单元组）从西欧连续分布到西西伯利亚。另一个（西伯利亚单倍群）在两个不相邻的地区发现：西伯利亚中部以及芬兰南部和卡累利阿。在欧洲血统中发现了几个较小的小分支（东欧，巴尔干和西西伯利亚）。使用设计用于分析地标数据的算法，在最大简约标准下进行祖先区重建。结果表明，该共同sh的最后一个共同祖先居住在巴尔干地区或多瑙河-喀尔巴阡地区。人口统计学分析的结果与整个分布范围内最近扩张的假设相一致。在该范围的西部，遗传多样性指数和扩增时间估计较高。累积地，这些发现支持了这样的假说，即在最后一次冰河期最大期间，在东南欧，普通sh的范围仅限于单个避难所。