Identification of Attheyella nordenskioldii (Copepoda: Harpacticoida) in Lake Baikal using molecular genetic methods

Q3 Agricultural and Biological Sciences Zoosystematica Rossica Pub Date : 2023-09-12 DOI:10.31610/zsr/2023.32.1.124

Fefilova, Elena B., Alekseeva, Tatyana M., Popova, Elizaveta I., Golubev, Maksim A., Bakashkina, Aleksandra S., Velegzhaninov, Ilya O., Novikov, Aleksandr A.

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Abstract

The results of molecular genetic analysis of the widespread holarctic harpacticoid species Attheyella nordenskioldii (Lilljeborg, 1902) from Lake Baikal are presented for the first time. Until recently, this species was recorded from Baikal and the rivers flowing into the lake as its junior synonym Canthocamptus gibba Okuneva, 1983, which was considered endemic to Baikal. Our research is based on the material from samples of meiobenthos collected from Lake Baikal (including the type locality of C. gibba), waterbodies of the Baikal area, from other regions of Siberia (delta of the Lena River, Putorana Plateau, Western Sayan Mountains, Transbaikalia) and Europe (Bolshezemelskaya tundra). A comparison of the Baikalian specimens of A. nordenskioldii with those from other above-mentioned regions by COI nucleotide sequences showed that they belong to the same species (genetic distances between the specimens from different populations were 0.0016–0.065). Variability is shown in the length of the copulatory duct of A. nordenskioldii, previously indicated to differentiate this species from C. gibba, as well as in other characters of the fifth leg of female.

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贝加尔湖北denskioldii(桡足目:Harpacticoida)的分子遗传学鉴定

本文首次报道了贝加尔湖广泛分布的全北极harpactioid at他们ella nordenskioldii (Lilljeborg, 1902)的分子遗传学分析结果。直到最近，贝加尔湖和流入湖泊的河流中才记录到该物种，作为其初级同义词Canthocamptus gibba Okuneva, 1983年，被认为是贝加尔湖特有的物种。我们的研究基于贝加尔湖(包括长臂猿的类型地区)、贝加尔湖水域、西伯利亚其他地区(勒拿河三角洲、普托拉纳高原、西萨扬山脉、外贝加尔湖)和欧洲(Bolshezemelskaya冻土带)的小底栖动物样本。贝加里安地区的北登斯库伊蚊标本与其他地区标本的COI核苷酸序列比较表明，它们属于同一种(不同居群标本的遗传距离为0.0016 ~ 0.065)。变异表现在北denskioldii交配管道的长度上，这在之前被认为是区分该物种与长臂猿的标志，以及雌性第五腿的其他特征。

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来源期刊

Zoosystematica Rossica Agricultural and Biological Sciences-Animal Science and Zoology

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1.30

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0.00%

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期刊介绍： Zoosystematica Rossica is an international journal for publication of papers on any aspects of systematic zoology, in all groups of animals, both extant and fossil, from all over the World. The journal is published in English and focuses on the descriptions of new taxa, revisions and reviews, nomenclature, theories and methods of taxonomy and phylogeny, interesting new faunal records, catalogues and checklists, identification keys, phylogenetic relationships and zoogeography. Faunistic articles are published in a limited way and only if they contain new records for large geographical regions and are important for zoogeography or taxonomy.