The Ochlerotatus (Oc.) communis complex consist of three Northern American species as well as a common Holarctic mosquito (Diptera: Culicidae) Oc. communis (De Geer, 1776). These sister species exhibit important ecological differences and are capable of transmitting various pathogens, but cannot always be differentiated by morphological traits. To investigate the Oc. communis complex in Europe, we compared three molecular markers (COI, ND5 and ITS2) from 54 Estonian mosquitoes as well as two COI marker sequences from Sweden. These sequences were subjected to phylogenetic analysis and screened for Wolbachia Hertig and Wolbach symbionts. Within and between groups, distances were calculated for each marker to better understand the relationships among individuals. Results demonstrate that a group of samples, extracted from adult female mosquitoes matching the morphology of Oc. communis, show a marked difference from the main species when comparing the mitochondrial markers COI and ND5. However, there is no variance between the same specimens when considering the nuclear ITS2. We conclude that Oc. communis encompasses two distinct mitochondrial DNA lineages in the Nordic-Baltic region. Further research is needed to investigate the origin and extent of these genetic differences.

中文翻译：

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在北欧波罗的海地区的Ochlerotatus communis（De Geer，1776）中发现了新的线粒体DNA谱系。

该Ochlerotatus（OC）群落复杂的由三北的美洲种以及常见的泛北极蚊子（双翅目：蚊科）的Oc。communis（De Geer，1776年）。这些姊妹物种表现出重要的生态差异，并能够传播各种病原体，但不能总是通过形态特征加以区分。调查Oc。群落在欧洲复杂的，我们比较了54只爱沙尼亚蚊子以及来自瑞典有两家COI标记序列三种分子标记（COI，ND5和ITS2）。对这些序列进行了系统发育分析并筛选了沃尔巴克氏菌Hertig和Wolbach共生。在组内和组之间，计算每个标记的距离，以更好地了解个体之间的关系。结果表明，从成年雌性蚊子中提取的与Oc形态相匹配的一组样品。群落，比较线粒体标记COI和ND5时表示，从主要品种明显的差异。但是，当考虑核ITS2时，相同样本之间没有差异。我们得出结论。communis涵盖了北欧-波罗的海地区的两个不同的线粒体DNA谱系。需要进一步研究以调查这些遗传差异的起源和程度。