Telford Maximilian J, Bourlat Sarah J, Economou Andrew, Papillon Daniel, Rota-Stabelli Omar
Department of Biology, University College London, London WC1E 6BT, UK.
Philos Trans R Soc Lond B Biol Sci. 2008 Apr 27;363(1496):1529-37. doi: 10.1098/rstb.2007.2243.
Ecdysozoa is a clade composed of eight phyla: the arthropods, tardigrades and onychophorans that share segmentation and appendages and the nematodes, nematomorphs, priapulids, kinorhynchs and loriciferans, which are worms with an anterior proboscis or introvert. Ecdysozoa contains the vast majority of animal species and there is a great diversity of body plans among both living and fossil members. The monophyly of the clade has been called into question by some workers based on analyses of whole genome datasets. We review the evidence that now conclusively supports the unique origin of these phyla. Relationships within Ecdysozoa are also controversial and we discuss the molecular and morphological evidence for a number of monophyletic groups within this superphylum.
具有分节和附肢的节肢动物、缓步动物和有爪动物,以及线虫动物、线形动物、鳃曳动物、动吻动物和铠甲动物,它们是具有前端吻或内缩体的蠕虫。蜕皮动物总门包含绝大多数动物物种,现存和化石成员的身体结构都具有高度多样性。基于对全基因组数据集的分析,一些研究人员对该进化枝的单系性提出了质疑。我们回顾了目前确凿支持这些门独特起源的证据。蜕皮动物总门内部的关系也存在争议,我们讨论了支持该超门内多个单系类群的分子和形态学证据。