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首页> 外文期刊>Zoological Science >Molecular Systematics of Tanaidacea (Crustacea: Peracarida) Based on 18S Sequence Data, with an Amendment of Suborder/Superfamily-level Classification
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Molecular Systematics of Tanaidacea (Crustacea: Peracarida) Based on 18S Sequence Data, with an Amendment of Suborder/Superfamily-level Classification

机译：基于18S序列数据并修正了亚纲/超家族水平分类的of科的分子系统学（甲壳纲：Peracarida）

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摘要

Phylogenetic relationships within Tanaidacea were analyzed based on sequence data for the 18S rRNA gene. Our results strongly supported a monophyletic group composed of Neotanaidae, Tanaoidea, and Paratanaoidea, with the first two taxa forming a clade. These results contradict three previously suggested hypotheses of relationships. Based on the molecular results, and considering morphological similarities/differences between Neotanaidomorpha and Tanaidomorpha, we demoted Suborder Neotanaidomorpha to Superfamily Neotanaoidea within Tanaidomorpha; with this change, the classification of extant tanaidaceans becomes a two-suborder, four-superfamily system. This revision required revision of the diagnoses for Tanaidomorpha and its three superfamilies. The results for Apseudomorpha were ambiguous: this taxon was monophyletic in the maximum likelihood and Bayesian analyses, but paraphyletic in the maximum parsimony and minimum evolution analyses.
机译：基于18S rRNA基因的序列数据，分析了ana科内部的亲缘关系。我们的研究结果有力地支持了由新鞭毛虫科，田毛虫科和拟鞭毛虫科组成的单系统类群，其中前两个类群形成了进化枝。这些结果与先前提出的三种关系假设相矛盾。基于分子结果，并考虑到新七叶猴和七叶猴的形态相似/差异，我们将新七叶猴亚目降级为新七叶猴内的新科。有了这一更改，现存的tanaidaceans的分类就变成了两个子顺序，四个超家族的系统。此修订需要修订Tanaidomorpha及其三个超家族的诊断。 Apseudomorpha的结果是模棱两可的：在最大可能性和贝叶斯分析中，该分类单元是单系的，而在最大简约性和最小进化分析中，该类群是单系的。

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