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首页> 外文期刊>Molecular phylogenetics and evolution >Phylogenetic relationships of the Chinese torrent frogs (Ranidae: Amolops) revealed by phylogenomic analyses of AFLP-Capture data
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Phylogenetic relationships of the Chinese torrent frogs (Ranidae: Amolops) revealed by phylogenomic analyses of AFLP-Capture data

机译：中国洪流（RANIDAE：AMOLOPS）的系统发育关系揭示了AFLP捕获数据的系统核糖分析

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摘要

The torrent frog genus Amolops contains nearly sixty species distributed in swift mountain streams throughout southeast Asia. The taxonomy of this genus has proven complicated due to unstable morphological diagnostic characters. The relationships of Amolops species and species groups were not readily resolved with a small number of molecular markers. Here, we applied the novel AFLP-Capture approach and acquired two large datasets (242 anonymous nuclear sequences and the mitochondrial genome) from 70 Chinese Amolops samples to study their relationships. The phylogenies inferred from the nuclear data and the mitochondrial data were both robust and revealed a primary phylogenetic split between eastern and western Chinese Amolops species. The relationships of the six species groups were clarified. While the three species groups in east China (the A. ricketti, A. daiyunensis and A. hainanensis groups) were monophyletic, the three species groups in the west (the A. mantzorum, A. monticola and A. marmoratus groups) were not monophyletic, suggesting a need for further investigation and revision. The robust phylogenies also provided new insights into species relationships, especially for the A. mantzorum group, which has been difficult to resolve due to multiple speciation events occurring approximately 7-8 million years ago. The divergence times estimated with the nuclear data indicated that the ancestor of the Chinese Amolops appeared in the late Eocene or early Oligocene, and that speciation events in the Chinese Amolops were often related to geological events (e.g. the uprising of mountains and the formation of islands). By including the mitochondrial sequences from GenBank, a more comprehensive Amolops phylogeny was constructed that reflected the origin of the Chinese Amolops. Based on all these results, a dispersal scenario of the torrent frogs was hypothesized. Our research serves as the first example of using AFLP-Capture to obtain a large amount of data for shallow-scale phylogenetic and taxonomic studies, which should be useful for other nonmodel organism groups.
机译：Torrent Frog Genus Amolops含有近60种分布在东南亚的Swift山区溪流中。由于不稳定的形态诊断性状，该属的分类物证明是复杂的。 Amolops物种和物种基团的关系不容易地用少量分子标记分解。在这里，我们应用了新的AFLP捕获方法，并从70家AMOLOPS样本获取了两个大型数据集（242个匿名核序列和线粒体基因组），以研究其关系。从核数据和线粒体数据推断的文学发生器既稳健，又揭示了东方和西方奥罗偶物种之间的主要系统发育分裂。澄清了六种种群的关系。虽然华东地区（A.Ricketti，A. Daiyunensis和A. Hainanensis）的三种物种群体都是单体内的，这是西部的三种种群（A. Mantzorum，A. Monticola和A. Marmoratus群组）不是单巧克力，建议需要进一步调查和修订。强大的系统发育也为物种关系提供了新的见解，特别是对于A. Mantzorum集团而言，由于大约7-800万年前发生的多种品格事件，这一直难以解决。核数据估计的分歧时间表明，中国AMOLOPS的祖先出现在后期或早期的寡核苷中，而中国AMOLOPS中的品种事件通常与地质事件（例如山脉起义和岛屿的形成有关）。通过包括来自Genbank的线粒体序列，构建了一种更全面的Amolops phylogy，其反映了中国Amolops的起源。基于所有这些结果，洪流青蛙的分散情景被假设了。我们的研究是使用AFLP捕获的第一个例子，以获得大量数据用于浅刻系统发育和分类学研究，这对于其他非典范生物组应该有用。

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