We examine the genetic history and population status of Hawaiian Hoary bats (Lasiurus semotus), the most isolated bats on Earth, and their relationship to Northern Hoary bats (L. cinereus), through whole-genome analysis of single-nucleotide polymorphisms (SNPs) mapped to a de novo-assembled reference genome. Profiles of genomic diversity and divergence indicate that Hawaiian Hoary bats are distinct from Northern Hoary bats, and form a monophyletic group, indicating a single ancestral colonization event 1.34 Mya, followed by substantial divergence between islands beginning 0.51 Mya. Phylogenetic analysis indicates Maui is central to the radiation across the archipelago, with the southward expansion to Hawaiʻi and westward to Oʻahu and Kauaʻi. Because this endangered species is of conservation concern, a clearer understanding of the population genetic structure of this bat in the Hawaiian Islands is of timely importance.

中文翻译：

---

基因型序列数据的分析揭示了夏威夷灰白蝙蝠种群的起源和进化分离。


我们通过单核苷酸多态性 (SNP) 的全基因组分析，研究了地球上最孤立的蝙蝠——夏威夷白头蝠 ( Lasiurus semotus ) 的遗传史和种群状况，以及它们与北方白头蝠 ( L. cinereus)的关系。映射到从头组装的参考基因组。基因组多样性和分化概况表明，夏威夷白毛蝙蝠与北方白毛蝙蝠不同，并形成一个单系群，表明单个祖先殖民事件 1.34 Mya，随后岛屿之间从 0.51 Mya 开始出现显着分化。系统发育分析表明，毛伊岛是整个群岛辐射的中心，向南扩展至夏威夷，向西扩展至欧胡岛和可爱岛。由于这种濒临灭绝的物种受到保护，因此更清楚地了解夏威夷群岛这种蝙蝠的种群遗传结构具有重要意义。