Comparative phylogeography and asymmetric hybridization between cryptic bat species
Comparative phylogeography and asymmetric hybridization between cryptic bat species
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DOI：
10.1111/jzs.12318
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发表时间：
2019-08-01
影响因子：
1.9
通讯作者：
Juste, Javier
中科院分区：
文献类型：
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作者：
Centeno-Cuadros, Alejandro;Razgour, Orly;Juste, Javier
隐种形成和杂交是影响生物多样性起源和维持以及人类理解和评估生物多样性的两个关键过程，为了确定这两个过程如何相互作用，我们研究了伊比利亚半岛两种隐种蝙蝠（Eptesicus isabellinus和Eptesicus isabellinus）的异域和同域种群。这些物种是欧洲蝙蝠中最常见的狂犬病病毒的主要宿主：欧洲蝙蝠狂犬病病毒1型（EBLV-1）。我们使用线粒体DNA和核微卫星标记来确认这两个物种的分类地位，并显示出一个更明显的和基于地理的遗传结构，在E。isabellinus比其同胞E.你好使用近似贝叶斯计算（ABC），我们推断快速范围扩张后，这两个物种的末次冰期最大，直到达到目前的分布。ABC分析也支持种间遗传多样性和结构的差异，指出E.向北移动。我们没有发现物种间线粒体基因渐渗的证据，但是核标记鉴定了一个雄性介导的不对称杂交。isabellinus到E. Escherichia coli（28%）与E. Escherichia coli和E. Isabellinus）在接触区。虽然没有一只蝙蝠被检测出对Lyssavirus RNA呈阳性，但不对称杂交支持了最近提出的EBLV-1从E. isabellinus转化为E.你好
Cryptic speciation and hybridization are two key processes that affect the origin and maintenance of biodiversity and our ability to understand and estimate it. To determine how these two processes interact, we studied allopatric and sympatric colonies of two cryptic bat species (Eptesicus serotinus and Eptesicus isabellinus) with parapatric distribution in the Iberian Peninsula. These species are the main reservoir for the most commonly rabies virus found in bats in Europe: the European bat Lyssavirus type 1 (EBLV-1). We used mtDNA and nuclear microsatellite markers to confirm the taxonomic status of both species and to show a more pronounced and geographically based genetic structure in E. isabellinus than in its sibling E. serotinus. Using approximate Bayesian computation (ABC), we inferred rapid range expansion in both species after the Last Glacial Maximum until reaching their present distributions. ABC analysis also supported interspecific differences in genetic diversity and structure, pointing to an earlier expansion of E. isabellinus northward. We found no evidence of mitochondrial introgression between species, but nuclear markers identified a male-mediated ongoing asymmetric hybridization from E. isabellinus to E. serotinus (28% hybrids in E. serotinus and 5% in E. isabellinus) in the contact zone. Although none of the bats studied tested positive for Lyssavirus RNA, the asymmetric hybridization supports the potential for the recently suggested interspecific transmission of EBLV-1 from E. isabellinus into E. serotinus.