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首页> 外文期刊>Zoological Science >Description of a New Subfamily, Astrocloninae (Ophiuroidea: Euryalida: Gorgonocephalidae), Based on Molecular Phylogeny and Morphological Observations
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Description of a New Subfamily, Astrocloninae (Ophiuroidea: Euryalida: Gorgonocephalidae), Based on Molecular Phylogeny and Morphological Observations

机译：基于分子系统发育和形态学观察的新型亚家族

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摘要

Previous phylogenetic studies of the family Gorgonocephalidae (brittle stars and basket stars) have identified three subfamilies, Astrotominae, Astrothamninae, and Gorgonocephalinae. The genus Astroclon was tentatively assigned to the subfamily Astrothamninae in previous studies, but its morphology is enigmatic and molecular data of the genus was insufficient. Therefore, the systematic position of Astroclon required confirmation to reconstruct the accurate systematics of the Euryalida. In the present study, we sought to clarify the subfamilial classification in the family Gorgonocephalidae (Echinodermata: Ophiuroidea: Euryalida). We revisited molecular phylogenetics of the Gorgonocephalidae including Astroclon and the major taxa in the family. The molecular analysis supported monophyly of the two species of Astroclon and its clear separation from Astrothamninae. The two Astroclon species were also distinguished from the other two subfamilies, Astrotominae and Gorgonocephalinae. Astroclon and three other subfamilies were divided in the basal position of the Gorgonocephalidae, and were assigned to subfamilies. A new subfamily, Astrocloninae was monotypically established for Astroclon in addition to the previous three subfamilies. Morphology of the first ventral arm plates and tentacle pores also supported distinctiveness of the new subfamily.
机译：以前的Phyloycociency Gorgonocephalidae（脆弱恒星和篮子星）鉴定了三个亚属，astrotominae，astrothamninae和gorgonocephalinae。 Astroclon在先前的研究中暂时分配到亚家族astrothamnae，但其形态是神秘的，并且属的分子数据不足。因此，Astroclon的系统位置要求确认重建EuryalA的准确系统。在本研究中，我们试图澄清家族甘草藻藻酱（Echinodermata：Ophiuroidea：EuryAdia）中的亚细胞分类。我们重新审视了Gorgonocephalidae的分子母源，包括星形电池和家庭的主要分类。分子分析支持两种星形洛龙的一定和其清除分离Astrothamnina。两种星形胶片种类也与其他两种亚属，散毛瘤和甘蓝藻藻肽区分开来。 Astroclon和其他三个亚属亚属分为Gorgonocephalidae的基础位置，并分配给亚属植物。除了前三个亚属植物之外，Astrocloninae为Astroclon是单型批量建立的。第一个腹部臂板和触手孔的形态也支持新的亚家族的独特性。

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