Mayor T Yu, Galimova Yu A, Sheveleva N G, Sukhanova L V, Kirilchik S V
Genetika. 2017 Feb;53(2):233-9.
Lake Baikal is inhabited by a relatively large number of cyclopid species, many of which are endemics. Two genera, Diacyclops Kiefer, 1927 and Acanthocyclops Kiefer, 1927, are the most specious in the lake. Taxonomic discrimination of the majority of representatives of these genera is difficult owing to their high morphological similarities and poor standard description. In this study, a molecular phylogenetic analysis of Lake Baikal members of the Diacyclops/Acanthocyclops group is performed on the basis of mitochondrial cytochrome c oxidase subunit I (COI) gene. It is shown that a fragment of COI 1000 bp long is sufficient for intragenus discrimination of the cyclopids of Lake Baikal. The issues of Diacyclops/Acanthocyclops taxonomy are reflected in the obtained molecular data. Two distinct phylogenetic groups of Diacyclops genus with uncertain taxonomic status are revealed.
贝加尔湖栖息着相对大量的剑水蚤物种，其中许多是特有物种。两个属，即1927年的双剑水蚤属（Diacyclops Kiefer）和1927年的棘剑水蚤属（Acanthocyclops Kiefer），是湖中物种最为丰富的。由于这些属的大多数代表形态高度相似且标准描述不足，对它们进行分类鉴别很困难。在本研究中，基于线粒体细胞色素c氧化酶亚基I（COI）基因，对贝加尔湖双剑水蚤属/棘剑水蚤属群体的成员进行了分子系统发育分析。结果表明，一段1000 bp长的COI片段足以对贝加尔湖剑水蚤进行属内鉴别。双剑水蚤属/棘剑水蚤属的分类问题在获得的分子数据中得到了体现。揭示了双剑水蚤属两个分类地位不确定的不同系统发育群体。
