The epidermal ciliary rootlets of Xenoturbella bocki (Xenoturbellida) revisited: new support for a possible kinship with the Acoelomorpha (Platyhelminthes)
The epidermal ciliary rootlets of Xenoturbella bocki (Xenoturbellida) revisited: new support for a possible kinship with the Acoelomorpha (Platyhelminthes)
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DOI：
10.1111/j.1463-6409.1998.tb00440.x
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发表时间：
1998-07-01
影响因子：
2.5
通讯作者：
Lundin, K
中科院分区：
文献类型：
--
作者：
Lundin, K
包氏奇蚓表皮运动纤毛结构的超微结构研究？即轴丝的基部、基体和纤毛根。揭示了支持Xenoturbella和Acoelomorpha之间密切关系的假设的特征。这些可能的突触形态特征中最突出的是轴丝基部的杯状结构。一个近端中空的小根出现在基体的前面，成束的微管从基足延伸到下一个后排的主根。其他观点在最近的文献地方Xenoturbella密切相关的软体动物或干种的Bilateria。因此，Xenoturbella的系统发育亲和力仍然高度有争议。这里给出了最近的报告的审查，连同当前的遗传假说的组合的讨论。(C)1998年挪威科学与文学院。
Ultrastructural studies of epidermal locomotory ciliary structures of Xenoturbella bocki? i.e. the basal part of the axoneme, the basal body and the ciliary rootlets. have revealed characters supporting the hypothesis of a close relationship between Xenoturbella and the Acoelomorpha. Some of the most prominent of these possibly synapomorphic characters are a cup-shaped structure at the base of the axoneme. a proximally hollow rootlet arising on the anterior face of the basal body and bundles of microtubules extending from the basal foot to the main rootlets in the next hind row. Other views in the recent literature places Xenoturbella as closely related to the Mollusca or to the stem species of the Bilateria. As such, the phylogenetic affinities of Xenoturbella remain highly debateable. A review of recent reports on the subject is given here, together with a discussion of combinations of current phylogeny hypotheses. (C) 1998 The Norwegian Academy of Science and Letters.