Glotova Anna, Smirnov Alexey
Department of Invertebrate Zoology, Faculty of Biology, St. Petersburg State University, Universitetskaja nab. 7/9, 199034 St. Petersburg, Russia.
Department of Invertebrate Zoology, Faculty of Biology, St. Petersburg State University, Universitetskaja nab. 7/9, 199034 St. Petersburg, Russia.
Eur J Protistol. 2017 Apr;58:164-174. doi: 10.1016/j.ejop.2017.02.003. Epub 2017 Mar 3.
A new species of naked amoebae, Flamella daurica (Amoebozoa, Conosa, Variosea), from the Russian Far East is studied and described. In addition, we isolated a strain, identified as Flamella aegyptia from Lake Ontario in Canada. Its SSU rRNA gene sequence is almost identical with that of the type strain, except for the presence of an intron in the SSU sequence. The phylogenetic analysis of a variosean alignment after inclusion of a number of environmental sequences found in GenBank confirmed that the species Talaepolella tubasferens Lahr 2012 is closely related to the Flamella clade but probably represents an independent genus and includes no less than two different species. This conclusion is supported by considerable differences between Talaepolella and Flamella in morphology and life history. Talaepolella tubasferens is an evolutionary important species demonstrating the transition from compact flamellian to expanded acramoebian morphology. The genus Flamella now includes twelve named species, which makes it one of the most species-rich genera of naked lobose amoebae.
对来自俄罗斯远东地区的一种新的裸变形虫——达乌尔弗拉梅拉变形虫（变形虫门，锥虫亚门，多变亚目）进行了研究和描述。此外，我们从加拿大安大略湖分离出一个菌株，鉴定为埃及弗拉梅拉变形虫。其小亚基核糖体RNA（SSU rRNA）基因序列与模式菌株几乎相同，只是在SSU序列中存在一个内含子。在纳入GenBank中发现的一些环境序列后，对多变亚目比对进行的系统发育分析证实，2012年命名的管形塔拉埃波列拉变形虫与弗拉梅拉进化枝密切相关，但可能代表一个独立的属，且包含不少于两个不同的物种。这一结论得到了塔拉埃波列拉变形虫和弗拉梅拉变形虫在形态和生活史方面显著差异的支持。管形塔拉埃波列拉变形虫是一个具有重要进化意义的物种，展示了从紧密的弗拉梅拉形态到扩展的无脉络变形虫形态的转变。弗拉梅拉属现在包括十二个已命名的物种，这使其成为裸叶状变形虫中物种最丰富的属之一。
