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首页> 外文期刊>Marine biology >A global invader or a complex of regionally distributed species? Clarifying the status of an invasive calcareous tubeworm Hydroides dianthus (Verrill, 1873) (Polychaeta: Serpulidae) using DNA barcoding
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A global invader or a complex of regionally distributed species? Clarifying the status of an invasive calcareous tubeworm Hydroides dianthus (Verrill, 1873) (Polychaeta: Serpulidae) using DNA barcoding

机译：是全球入侵者还是区域分布物种的复合体？使用DNA条形码阐明入侵性钙质块根虫Hydroides dianthus（Verrill，1873）（Polychaeta：Serpulidae）的状况

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摘要

Clarifying taxonomic status is essential to understanding invasion source and the spread of invasive species. Here we used barcoding gene cytochrome c oxidase subunit I to explore the issue in a common fouling invasive species Hydroides dianthus. The species was originally described from off New England, USA, reported along the east coast of North America down to Florida and the Caribbean region, introduced to China, Europe, Japan and West Africa via anthropogenic transport and is now collected in Brazil for the first time. Unlike most congeners, H. dianthus has tolerance for a wide temperature range, being distributed from temperate to subtropical waters. Our results based on 112 specimens collected from 17 localities worldwide confirmed that H. dianthus sensu stricto is indeed a global invader. Observed higher haplotypes diversity in the Mediterranean seems to contradict the currently accepted native range of H. dianthus sensu stricto in the USA. The study also revealed the existence of a potential cryptic species H. cf. dianthus with a genetic distance of 5.6%. The cryptic lineage found in Texas was evidently introduced to the Black Sea only recently. Given that both lineages within H. dianthus are invasive, a greater emphasis on adequate monitoring and management of the routes responsible for introductions of this species is needed.
机译：明确分类学地位对于了解入侵源和入侵物种的传播至关重要。在这里，我们使用条形码基因细胞色素C氧化酶亚基I来探讨常见结垢入侵物种水ides石中的问题。该物种最初是从美国新英格兰附近描述的，沿北美洲的东海岸报道，一直到佛罗里达和加勒比海地区，通过人为运输引入中国，欧洲，日本和西非，现在在巴西被首次采集。时间。与大多数同类动物不同，石竹H在宽广的温度范围内具有耐受性，分布在温带至亚热带水域。我们基于从全球17个地区收集的112个标本的结果证实，石竹嗜血杆菌确实是全球入侵者。在地中海观察到的较高的单倍型多样性似乎与美国目前公认的石竹嗜血杆菌的本地范围相矛盾。研究还揭示了潜在隐性物种H. cf.的存在。石竹的遗传距离为5.6％。德克萨斯州发现的神秘血统显然是在最近才引入黑海的。鉴于石竹假单胞菌的两个谱系都是侵入性的，因此需要更加重视对引起该物种引入的途径进行充分的监测和管理。

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  • 来源
    《Marine biology》 |2017年第1期|28.1-28.12|共12页
  • 作者

    Sun Yanan; Wong Eunice; Keppel Erica; Williamson Jane E.; Kupriyanova Elena K.;

  • 作者单位

    Australian Museum, Australian Museum Res Inst, 1 William St, Sydney, NSW 2010, Australia|Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia;

    Australian Museum, Australian Museum Res Inst, 1 William St, Sydney, NSW 2010, Australia;

    Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia|Smithsonian Environm Res Ctr, Marine Invas Res Lab, 647 Contees Wharf Rd, Edgewater, MD 21037 USA|Italian Natl Res Council CNR, ISMAR Inst Marine Sci, Tesa 104, I-30122 Venice, Italy;

    Australian Museum, Australian Museum Res Inst, 1 William St, Sydney, NSW 2010, Australia|Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia;

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