Evolutionary history of the European free-tailed bat, a tropical affinity species spanning across the Mediterranean Basin
Evolutionary history of the European free-tailed bat, a tropical affinity species spanning across the Mediterranean Basin
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欧洲无尾蝙蝠的进化史，一种横跨地中海盆地的热带亲和物种
DOI：
10.1111/jzs.12326
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发表时间：
2019
影响因子：
1.9
通讯作者：
Amorim F
中科院分区：
文献类型：
--
作者：
Amorim F
地中海盆地是全球生物多样性热点，拥有许多属于几乎只在热带气候中发现的家庭的本地物种。然而，这些类群是否能够在第四纪气候振荡期间在地中海地区生存仍然是未知的。以欧洲无尾蝙蝠（Tadarida teniotis）为重点，我们的目标是（a）确定潜在的古代种群和冰川避难所;（B）确定冰川后穿越地中海的殖民路线;（c）评估当前的种群结构和人口统计学。线粒体和核标记物被用来了解T. teniotisevolutionary和人口统计学历史。我们表明，T. teniotis可能仅限于西部古北界，线粒体同源性表明安纳托利亚/中东分支和欧洲分支之间的分裂。核数据指出了三个遗传种群，其中一个是加那利群岛的一个孤立和高度分化的群体，另一个分布在伊比利亚，摩洛哥和法国，第三个从意大利向东延伸，混合物遵循一种隔离模式。进化和人口重建支持意大利和安纳托利亚/中东在末次冰期前的殖民，而其余的人口在新仙女木事件后从意大利殖民。我们还发现了伊比利亚殖民化后人口扩张的支持。结果表明，在LGMT期间，teniotis在地中海避难所持续存在，随后扩展到目前的环地中海范围。我们的研究结果提出了关于生理和生态特征的问题，这些特征使热带物种能够在寒冷的气候中生存。
The Mediterranean Basin is a global biodiversity hotspot, hosting a number of native species belonging to families that are found almost exclusively in tropical climates. Yet, whether or not these taxa were able to survive in the Mediterranean region during the Quaternary climatic oscillations remains unknown. Focusing on the European free‐tailed bat (Tadarida teniotis), we aimed to (a) identify potential ancient populations and glacial refugia; (b) determine the post‐glacial colonization routes across the Mediterranean; and (c) evaluate current population structure and demography. Mitochondrial and nuclear markers were used to understandT. teniotisevolutionary and demographic history. We show thatT. teniotisis likely restricted to the Western Palearctic, with mitochondrial phylogeny suggesting a split between an Anatolian/Middle East clade and a European clade. Nuclear data pointed to three genetic populations, one of which is an isolated and highly differentiated group in the Canary Islands, another distributed across Iberia, Morocco, and France, and a third stretching from Italy to the east, with admixture following a pattern of isolation by distance. Evolutionary and demographic reconstruction supports a pre‐Last Glacial Maximum (LGM) colonization of Italy and the Anatolian/Middle East, while the remaining populations were colonized from Italy after the Younger Dryas. We also found support for demographic expansion following the Iberian colonization. The results show that during the LGMT. teniotispersisted in Mediterranean refugia and has subsequently expanded to its current circum‐Mediterranean range. Our findings raise questions regarding the physiological and ecological traits that enabled species with tropical affinities to survive in colder climates.