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首页> 外文期刊>The Royal Society Proceedings B: Biological Sciences >A phylogenetic study of the squid family Onychoteuthidae (Cephalopoda : Oegopsida)
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A phylogenetic study of the squid family Onychoteuthidae (Cephalopoda : Oegopsida)

机译：鱿鱼科Onychoteuthidae（Cephalopoda：Oegopsida）的系统发育研究。

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The oegopsid squid family Onychoteuthidae presently comprises six genera (Moroteuthis, Onychoteuthis, Ancistroteuthis, Kondakovia, Onykia and Chaunoteuthis) but the status of some of these is still uncertain. An interdisciplinary study was undertaken to clarify the phylogenetic relationships, which included a morphological approach (morphometric analysis), and a molecular study of a mitochondrial gene portion (l-rRNA gene, 16S). The morphometric analysis identified two groups, one including some Onychoteuthis and some Moroteuthis knipovitchi, and another including the remaining genera or species. At the intrageneric level, M. knipovitchi appears to be separated from the other species of the genus; M. robusta is closely related to M. ingens and M. pacifica. Morphometric analysis confirmed that Kondakovia longimana is different from M. ingens. Likewise, Onychoteuthis was clearly separated from the other genera, but there is neither geographical grouping nor morphometric differentiation of the Onychoteuthis species with the parameters measured. Some specimens were apparently intermediate between the Onychoteuthis and Ancistroteuthis groups. On a molecular basis, the Onychoteuthidae appeared to be monophyletic. Monophyly of the genus Moroteuthis (four species studied) was not strongly supported: M. knipovitchi was distinct from the others. The molecular analysis showed three Hawaiian species, Onychoteuthis compacta, O. sp. B and O. sp. C, to be closely related. The gene sequence for the newly created species of Onykia is clearly different from all the others, indicating that it is a true species. [References: 32]
机译：整个鱿鱼家族的甲壳纲甲虫（Onychoteuthidae）目前有六个属（Moroteuthis，Onychoteuthis，Ancistroteuthis，Kondakovia，Onykia和Chaunoteuthis），但其中一些的状况仍不确定。进行了跨学科研究以阐明系统发育关系，其中包括形态学方法（形态分析）和线粒体基因部分（1-rRNA基因，16S）的分子研究。形态计量学分析确定了两组，一组包括一些Onychoteuthis和一些Moroteuthis knipovitchi，另一组包括剩余的属或种。在属内水平上，M。knipovitchi似乎与该属的其他物种分开。罗布斯分枝杆菌与基因分枝杆菌和太平洋分枝杆菌密切相关。形态分析证实，Kondakovia longimana与M. ingens不同。同样，Onychoteuthis明显与其他属分开，但是通过测量的参数，Onychoteuthis物种既没有地理分组，也没有形态学差异。有些标本显然介于甲虫和An虫之间。在分子基础上，甲虫科似乎是单系的。莫罗蒂斯（Monoteuthis）属（研究的4个种）的单亲性没有得到大力支持：knipovitchi不同于其他。分子分析显示三种夏威夷物种，Onychoteuthis compacta，O. sp.。 B和O。 C，要密切相关。新创建的Onykia物种的基因序列与所有其他物种明显不同，表明它是真正的物种。 [参考：32]

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