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首页> 外文期刊>Harmful Algae >Molecular evidence of a Didymosphenia geminata (Bacillariophyceae) invasion in Chilean freshwater systems
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Molecular evidence of a Didymosphenia geminata (Bacillariophyceae) invasion in Chilean freshwater systems

机译：智利淡水系统中双孢霉（Badymosphenia geminata）入侵的分子证据

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摘要

The microalgae Didymosphenia geminata (Lyngbye) Schmidt, commonly known as Didymo or "Rock snot" is an invasive freshwater benthic diatom, native to rivers of the Circumboreal Region of Europe. In Chile, Didymo was first found blooming in the Espolon River (around 44 S) in Patagonia in 2010. Several years later, Didymo has expanded its range to 3000 km from 38 S to 53 S. Genetic information about this alga could improve the early detection and monitoring of this invasive species especially in uncontaminated rivers. Therefore, this information could help managers to make conservation decisions about places threatened by Didymo invasion. Here, a phylogenetic analysis employing two commonly used molecular markers was conducted to identify Chilean Didymo samples from different spatially distant infested rivers. The data presented herein confirm the presence of Didymo in Chile and include the first genetic account of an invasion in South America. (C) 2015 Elsevier B.V. All rights reserved.
机译：微藻Didymosphenia geminata（Lyngbye）Schmidt，通常称为Didymo或“ Rock snot”，是一种侵入性的淡水底栖硅藻，原产于欧洲Circumboreal地区的河流。在智利，Didymo于2010年首次发现于巴塔哥尼亚的Espolon河（约44 S）中开花。几年后，Didymo将其范围从38 S扩大至3000 S至53S。有关该藻类的遗传信息可改善早期检测和监测这种入侵物种，尤其是在未受污染的河流中。因此，这些信息可以帮助管理人员对Didymo入侵威胁的地方做出保护决定。在这里，进行了系统发育分析，使用了两种常用的分子标记物，从不同的空间遥远的受灾河流中鉴定出智利的迪迪莫样品。本文提供的数据证实了Didymo在智利的存在，并且包括南美洲入侵的第一个遗传原因。 （C）2015 Elsevier B.V.保留所有权利。

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