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Invasion of Eragrostis albensis in Central Europe: distribution patterns, taxonomy and phylogenetic insight into the Eragrostis pilosa complex
Biological Invasions ( IF 2.9 ) Pub Date : 2021-04-07 , DOI: 10.1007/s10530-021-02507-6
Anna Wróbel , Ewelina Klichowska , Evgenii Baiakhmetov , Arkadiusz Nowak , Marcin Nobis

The Eragrostis pilosa complex (Poaceae) comprises five widely distributed and regionally invasive species—E. albensis, E. amurensis, E. imberbis, E. multicaulis, and E. pilosa, distinguished by tiny and variable morphological characters and with so far unknown phylogenetic relationships. Recently, some doubts have been raised about the status of an invasive glandular morphotype occurring in Central Europe assigned either to E. amurensis or to E. albensis. Here, we addressed this issue by analysing morphology, internal transcribed spacers of nuclear ribosomal DNA, and five inter-simple sequence repeat markers. The genetic evidence supported closer relationship of this glandular morphotype to eglandular E. albensis, widely established in Central Europe, than to glandular E. amurensis described from Asia. We propose to adopt a new taxonomic treatment that E. albensis includes both eglandular and glandular individuals, and to classify the glandular ones as E. albensis var. scholziana M. Nobis & A. Wróbel var. nova. Currently this new taxon is known from a dozen of localities in Central Europe and is invasive in the lower section of the Oder River valley, whereas Eragrostis albensis var. albensis has already spread widely across Europe in riparian phytocenoses and anthropogenic habitats. Since probably the first registered records in 1940s, it has been observed in European part of Russia, Belarus, Ukraine, Poland, Slovakia, Czech Republic, Germany, Austria, the Netherlands, and its further invasion is likely to proceed. We provided distribution maps concerning spread dynamics of E. albensis in Europe from 1947 to 2020. In total, the species has been observed on over 1300 localities so far, most of which were found after 2000.



中文翻译:

入侵中欧的草龟:分布毛虫复杂的分布模式,分类学和系统发育见解

画眉草络合物(禾本科)包括五个广泛分布和区域侵入物种E. albensisE.椴E.鱊E. -多,和E.草,通过微小的和可变的形态特征并与迄今未知系统发育区分关系。最近,一些疑惑已经提出了关于在中欧发生的侵入腺体形态类型或者分配到状态E.椴E. albensis。在这里,我们通过分析形态,核糖体DNA的内部转录间隔区和五个简单序列重复标记来解决这个问题。遗传证据支持这一腺体形态类型,以无腺体更紧密的关系E. albensis,广泛建立在中欧,比腺体E.椴来自亚洲的描述。我们建议采用一种新的生物分类学处理方法,将大肠埃希氏菌包括腺体和腺体都包括在内,并将腺体分类为大肠埃希氏菌scholziana M. Nobis和A.Wróbelvar 。新星目前,这种新的分类单元在中欧的十几个地方都广为人知,并且在得河河谷的下部受到了入侵,而Eragrostis albensis var在入侵albensis已在欧洲沿岸植物群落和人为栖息地中广泛传播。由于可能是1940年代的首次注册记录,因此在俄罗斯,白俄罗斯,乌克兰,波兰,斯洛伐克,捷克共和国,德国,奥地利,荷兰的欧洲部分已经发现过,而且可能会进一步入侵。我们提供了有关1947年至2020年欧洲大肠埃希菌传播动态的分布图。到目前为止,总共已在1300多个地方观察到该物种,其中大多数是在2000年之后发现的。

更新日期:2021-04-08
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