Phylogeny of the order Zoantharia (Anthozoa, Hexacorallia) based on the mitochondrial ribosomal genes
Phylogeny of the order Zoantharia (Anthozoa, Hexacorallia) based on the mitochondrial ribosomal genes
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基于线粒体核糖体基因的Zoantharia（Anthozoa，Hexacorallia）系统发育
DOI：
10.1007/s00227-005-0016-3
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发表时间：
2005
期刊：
影响因子：
2.4
通讯作者：
J. Pawłowski
中科院分区：
文献类型：
--
作者：
F. Sinniger;J. Montoya;P. Chevaldonné;J. Pawłowski
Zoantharia（或Zoanthidea）是Hexacorallia的第三大目，其特点是两排触手，一个虹吸管和殖民地的生活方式。目前的Zoantharia分类学完全基于形态学，并遵循传统的分为两个亚目Brachycnemina和Macrocnemina，每个亚目都包括几个定义不明确的属和种。为了确定棘球藻之间的系统发育关系，我们分析了来自24个棘球藻标本的线粒体16S和12S rRNA基因序列，分别代表两个亚目和8个属。根据我们的资料，短线虫似乎是一个单系群，在副葡萄球菌大线虫中分化。巨生属的棘花属分支是所有其它棘花属的姐妹群。所有被检测的属都是单系的，除了Parazoanthus，它包括几个独立的分支分支和单独的序列。其中，某些类群的物种可以通过特定的DNA序列插入/删除模式来定义。所有这些分支都显示出对特定类型的基质的特异性，例如海绵或水螅类动物。底物特异性也见于寄生于柳橙属或抗病属的寄生虫，如Savalia属（Gerardia）。如果得到进一步的研究证实，底物特异性可以作为一些大线虫分类鉴定的可靠特征。
Zoantharia (or Zoanthidea) is the third largest order of Hexacorallia, characterised by two rows of tentacles, one siphonoglyph and a colonial way of life. Current systematics of Zoantharia is based exclusively on morphology and follows the traditional division of the group into the two suborders Brachycnemina and Macrocnemina, each comprising several poorly defined genera and species. To resolve the phylogenetic relationships among Zoantharia, we have analysed the sequences of mitochondrial 16S and 12S rRNA genes obtained from 24 specimens, representing two suborders and eight genera. In view of our data, Brachycnemina appears as a monophyletic group diverging within the paraphyletic Macrocnemina. The macrocnemic genus Epizoanthus branches as the sister group to all other Zoantharia that are sampled. All examined genera are monophyletic, except Parazoanthus, which comprises several independently branching clades and individual sequences. Among Parazoanthus, some groups of species can be defined by particular insertion/deletion patterns in the DNA sequences. All these clades show specificity to a particular type of substrate such as sponges or hydrozoans. Substrate specificity is also observed in zoantharians living on gorgonians or anthipatharians, as in the genus Savalia (Gerardia). If confirmed by further studies, the substrate specificity could be used as reliable character for taxonomic identification of some Macrocnemina.
影响因子：
3.9
作者：
KISHINO, H;HASEGAWA, M
通讯作者：
HASEGAWA, M