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首页> 外文期刊>Zoological Journal of the Linnean Society >Untangling systematics of the Paramacrobiotus areolatus species complex by an integrative redescription of the nominal species for the group, with multilocus phylogeny and species delineation in the genus Paramacrobiotus
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Untangling systematics of the Paramacrobiotus areolatus species complex by an integrative redescription of the nominal species for the group, with multilocus phylogeny and species delineation in the genus Paramacrobiotus

机译：通过对本集团标称物种的一体化重新分析，具有多层文学和帕拉替政治素的多层文艺和物种描绘，通过派对物种的一体化重新分析来解除Paramacrobiotus isolatus物种复合物

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摘要

Incomplete descriptions of nominal taxa are one of the most significant obstacles in modern taxonomy, including the taxonomy of Tardigrada. Another major problem in tardigrade systematics is the lack of tests for the reliability of genetic markers in species delineation. Here, we employ an integrative taxonomy approach to redescribe the nominal taxon for the P. areolatus complex, Paramacrobiotus areolatus. Moreover, we obtained multilocus DNA sequences for another 16 populations representing 9-12 Paramacrobiotus species collected from Europe, North America, Africa and Australia, enabling us to reconstruct the most extensive phylogeny of the genus to date. The identification of a pair of potentially cryptic dioecious P. areolatus complex species with divergent genetic distances in ITS2 (1.4%) and COI (13.8%) provided an opportunity to test the biological species concept for the first time in the history of tardigrade taxonomy. Intra- and interpopulation crosses did not differ in reproductive success in terms of F 1 offspring. However, because of the low F 1 family sizes, we were unfortunately unable to test F 1 hybrid fertility. Although our results are only partially conclusive, they offer a baseline not only for further taxonomic and phylogenetic research on the areolatus complex, but also for studies on species delineation in tardigrades in general.
机译：名义分类的不完整描述是现代分类学中最重要的障碍之一，包括TARDIGADA的分类。 Tardigrade Systematics中的另一个主要问题是物种描绘中遗传标志物的可靠性缺乏测试。在这里，我们采用了一种综合的分类方法来重新评估P.Isolatus Complex，ParamacrobiotusSoolatus的名义分类。此外，我们获得了来自欧洲，北美，非洲和澳大利亚收集的9-12个paramacrobiotus物种的另外16种群体的多点DNA序列，使我们能够重建迄今为止属的最广泛的文学系统。鉴定其2（1.4％）和COI（1.4％）和COI（1.4％）和COI（13.8％）的发散遗传距离的一对潜在的密码差异。提供了在塔迪拉雷德分类史上第一次测试生物物种概念的机会。在F 1后代，在生殖成功中没有差异，内部间隔横向差异。然而，由于低于F 1家庭尺寸，我们不幸的是无法测试F 1混合生育能力。虽然我们的结果仅部分地确定，但它们不仅为进一步分类和系统发育和系统发育研究的基准，还提供了对Isolatus综合体的进一步分类和系统发育研究，而且还用于一般的黎迪拉德的物种描绘。

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