Abstract Aporrectodea rosea (Savigny, 1826) is a cosmopolitan earthworm widespread throughout the Holarctic. The available data on A. rosea genetic diversity (mainly from the Mediterranean region) suggests that this species can be divided into the Mediterranean and the Eurosiberian lineages. In this study we tested molecular variation within this species from the Northeastern Palearctic, namely from Russia, Belarus, and Kazakhstan, using nuclear and mitochondrial sequences. We detected previously unknown genetic diversity within the Eurosiberian lineage: basal representatives of this group from the south of Belarus were only distantly related to the rest of the lineage. This suggests that after the split of A. rosea into the Mediterranean and the Eurosiberian lineages, the latter diversified in eastern Europe with subsequent recolonization of the Mediterranean region. The paleogeographic history of this species is thus more complex than it was thought earlier. We found that A. rosea significantly increased its range over the last two decades, now being found in West Siberia; genetic diversity there is low compared to European Russia and Belarus. Compared to the closely related A. caliginosa, A. rosea had lower genetic diversity, probably caused by fewer dispersal events.

中文翻译：

---

Aporrectodea rosea (Lumbricidae, Annelida) 的系统地理学和遗传谱系

摘要 Aporrectodea rosea (Savigny, 1826) 是一种遍布整个北极圈的世界性蚯蚓。A. rosea 遗传多样性的可用数据（主要来自地中海地区）表明该物种可分为地中海和 Eurosiberian 谱系。在这项研究中，我们使用核和线粒体序列测试了来自东北古北区，即来自俄罗斯、白俄罗斯和哈萨克斯坦的该物种的分子变异。我们在 Eurosiberian 谱系中检测到了以前未知的遗传多样性：来自白俄罗斯南部的该组的基础代表仅与其余谱系远亲。这表明，在 A. rosea 分裂成地中海和 Eurosiberian 谱系后，后者在东欧多元化，随后在地中海地区重新殖民。因此，该物种的古地理历史比之前想象的要复杂。我们发现 A. rosea 在过去 20 年中的分布范围显着扩大，现在在西西伯利亚发现；与欧洲的俄罗斯和白俄罗斯相比，那里的遗传多样性较低。与密切相关的 A. caliginosa 相比，A. rosea 具有较低的遗传多样性，可能是由较少的传播事件引起的。