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First Results of a Molecular Genetic Analysis of the European Invader Eurytemora velox (Crustacea, Calanoida)

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Abstract

This article presents the first results of an analysis of CO1, ITSs, and 18SrRNA genes for populations of the invasive species Eurytemora velox (Lilljeborg, 1853) from the Cheboksary Reservoir and a lake in Kyiv. An analysis of the regions of the CO1 and ITSs genes showed that the studied populations differ by several nucleotide substitutions. The analysis of two DNA sequences of the conserved nuclear gene 18SrRNA as expected did not reveal the differences between the populations. A comparison of the data with sequences from the water bodies of Poland (from the GenBank https://www.ncbi.nlm.nih.gov/nuccore/MT146445) showed that they are grouped with eurytemoras from the Cheboksary Reservoir. It is likely that the E. velox found in the water bodies of Poland originates from the Caspian region, from where the eurytemora also settled in the Cheboksary Reservoir. The population from the lake in Kyiv most likely came up the Dnieper River from the Black Sea region. Thus, apparently, we are dealing with an independent dispersal of the species from at least two donor regions.

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ACKNOWLEDGMENTS

We thank L.V. Samchyshyna (Ukrainian Institute of Fisheries of the National Academy of Agrarian Sciences) for providing the material from the lake in Kyiv and we are grateful to an independent reviewer for their comments and advice on improving the text.

Funding

This study was carried out at the Equipment Sharing Center “Taxon” in accordance with the national research initiative of the Zoological Institute of Russian Academy of Sciences AAAA-A19-119020690091-0 “Research into the Biological Diversity and Mechanisms of the Impact of Anthropogenic and Natural Factors on the Structural and Functional Organization of Ecosystems of Continental Water Bodies. Systematization of Biodiversity of Salt Lakes and Saline Inland Seas in the Critical Salinity Zone and Study of the Role of Brackish-Aquatic Species in Ecosystems” and the Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, topic 121051100109-1 “Systematics, Diversity, Biology, and Ecology of Aquatic and Semiaquatic Invertebrates and the Structure of Populations and Communities in Continental Waters,” and supported by grants from the Russian Foundation for Basic Research no. 20-34-70020, 20-04-00035, and 19-04-00217.

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Authors and Affiliations

  1. Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia

    N. M. Sukhikh

  2. Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, Russia

    V. I. Lazareva

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  1. N. M. Sukhikh
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  2. V. I. Lazareva
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Correspondence to N. M. Sukhikh.

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Translated by V. Mittova

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Sukhikh, N.M., Lazareva, V.I. First Results of a Molecular Genetic Analysis of the European Invader Eurytemora velox (Crustacea, Calanoida). Inland Water Biol 15, 201–203 (2022). https://doi.org/10.1134/S1995082922020122

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