DNA barcoding reveals a new species of Stephanodiscus Ehrenberg

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-04-03 DOI:10.1080/0269249X.2022.2078427

Konrad Schultz, T. Hübener, Olivier Jacques, A. Springer, Marcus Frank, Mirko Dressler

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引用次数: 1

Abstract

The taxonomic situation of the species complex around Stephanodiscus minutulus/parvus is controversial. Insufficient species description and fossil type material contribute to persistent confusion. Håkansson & Kling (1990) described S. binatus as another morphologically similar species in this group. Following the reinvestigation of the type materials of S. minutulus and S. parvus by Houk et al. (2014), it seems that these names are often falsely applied to S. binatus. Monoclonal strains of the S. minutulus/parvus/binatus species complex from European water bodies were established for morphological and molecular analyses. Most of the strains belonged to S. binatus, which seems to be very common in meso- to eutrophic waters in middle Europe. Differing in the barcoding markers, the remaining strains represented a new species, S. neglectus sp. nov., morphologically similar to S. binatus. Stephanodiscus minutulus and S. parvus were not found. Seven strains of S. neglectus sp. nov., seven strains of S. binatus and two strains of Cyclostephanos invisitatus were subjected to detailed morphometric investigation. Four strains of Stephanodiscus hantzschii, Stephanodiscus neoastrea, Cyclostephanos dubius were also included in the molecular analysis. The morphological differential diagnosis of S. neglectus sp. nov. from S. binatus is difficult, but the molecular results show that the species are distinctly different. Using three different loci the distance between the new species and S. binatus equals the distance between S. binatus and S. hantzschii.

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DNA条形码技术揭示了一种新的铁饼属植物

围绕木盘的物种复合体的分类状况存在争议。物种描述和化石类型材料的不足导致了持续的混乱。h kansson & Kling(1990)将S. binatus描述为该群体中另一个形态相似的物种。Houk et al.(2014)对S. minutulus和S. parvus的类型资料进行重新调查后发现，这些名称似乎经常被错误地应用于S. binatus。从欧洲水体中建立了S. minutulus/parvus/binatus物种复合体的单克隆菌株，对其进行形态和分子分析。大多数菌株属于S. binatus，它似乎在中欧中至富营养化水域中非常常见。其余菌株在条形码标记上不同，代表了一个新种，S.忽视us sp. nov.，形态上与S. binatus相似。未发现金盘菌和小葡萄球菌。本文对7株忽略葡萄球菌、7株binatus葡萄球菌和2株环stephanos invisitatus葡萄球菌进行了详细的形态测量研究。并对4株汉蓝铁饼、新星蓝铁饼、双环铁饼进行了分子分析。两种昆虫的形态鉴别诊断比较困难，但分子鉴定结果表明两种昆虫有明显的差异。利用3个不同的位点，新种与双星蝽的距离等于双星蝽与汉氏蝽的距离。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.