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首页> 外文期刊>Zoologica Scripta: An International Journal of Evolutionary Zoology >Molecular taxonomy of Osedax (Annelida: Siboglinidae) in the Southern Ocean
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Molecular taxonomy of Osedax (Annelida: Siboglinidae) in the Southern Ocean

机译：南大洋中Osedax（Annelida：Siboglinidae）的分子分类学

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摘要

We report the discovery of three new species of Osedαx in the deep Southern Ocean, expanding the diversity and geographical range of this genus of bone-eating worms. Osedαx rogersi sp. n. and Osedαx crouch i sp. n. were found on a whale skeleton at 1444 m in the Kemp Caldera in the East Scotia Sea during the Chemosynthetic Ecosystems of the Southern Ocean (ChEsSo) project. The recently described species, Osedαx αntαrcticus, found on whale bones implanted at a depth of 550-650 m off Smith Island in the Bransfield Strait, was also found inhabiting the whale skeleton in the Kemp Caldera. Osedαx crouchi as well as another new species Osedαx nordenskjoeldi sp. n. have also been found on the implanted whale bones off Smith Island. These two localities are approximately 1800 km apart demonstrating a wide distribution of species within the genus. We describe the three new species, O. rogersi, O. crouchi and O. nordenskjoeldi and report the second record of O. αntαrcticus. We also present a new phylogenetic analysis for Osedαx, including data examining genetic connectivity between the Scotia Arc and the Bransfield Strait.
机译：我们报告了在深海南部发现的三个新的Osedαx物种，扩大了这种食骨蠕虫属的多样性和地理范围。 Osedαxrogersi sp。 。和Osedαx蹲下我。 。在南大洋的化学合成生态系统（ChEsSo）项目中，在东斯科舍省肯普火山口的1444 m鲸鲸骨骼上发现了它们。最近发现的物种Osedαxαntαrcticus在布兰斯菲尔德海峡史密斯岛（Smith Island）550至650 m深度处植入的鲸鱼骨头中发现，也发现在肯普火山口的鲸鱼骨骼中居住。 Osedαxcrouchi和另一个新物种Osedαxnordenskjoeldi sp。 。在史密斯岛（Smith Island）附近植入的鲸鱼骨头上也发现了这种细菌。这两个地方相距约1800公里，这表明该属内物种分布广泛。我们描述了三个新物种，罗氏罗非鱼，库鲁奇奥氏菌和诺登斯克约尔迪氏菌，并报告了第二个记录。我们还提出了Osedαx的新的系统发育分析，包括检查Scotia弧和Bransfield海峡之间的遗传连通性的数据。

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