Abstract Genetic variation in chromosomally polymorphic Sicista subtilis complex and related Sicista betulina species group was analysed using two mitochondrial markers (COI and Cytb). The S. subtilis group is shown to include six lineages, five of which correspond to species currently recognized based on cytogenetic and genetic data: Sicista nordmanni, Sicista trizona, S. subtilis sensu stricto, Sicista severtzovi and Sicista cimlanica. A previously unknown genetic lineage of S. subtilis was found in the North Caucasus. The existence of two divergent lineages within Sicista strandi is supported. It is suggested that the speciation rate in Sicista was strongly affected by rapid chromosomal evolution.

中文翻译：

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与核型分化相比，Sicista subtilis (Pallas, 1773) 物种组 (Rodentia, Sminthidae) 的遗传变异

摘要 使用两种线粒体标记（COI 和 Cytb）分析了染色体多态性枯草芽孢杆菌复合体和相关白桦茸属物种组的遗传变异。S. subtilis 组显示包括六个谱系，其中五个对应于目前根据细胞遗传学和遗传数据识别的物种：Sicista nordmanni、Sicista trizona、S. subtilis sensu stricto、Sicista severtzovi 和 Sicista cimlanica。在北高加索地区发现了一个以前未知的 S. subtilis 遗传谱系。支持 Sicista strodi 中存在两个不同的谱系。这表明 Sicista 的物种形成率受到快速染色体进化的强烈影响。