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线粒体细胞色素氧化酶 I 及内部转录间隔区 2 片段的分子特征分析。

Molecular Characterisation of Cytochrome Oxidase I and Internal Transcribed Spacer 2 Fragments of .

机构信息

Urmia University of Medical Sciences Faculty of Public Health, Department of Medical Entomology, Urmia, Iran.

Urmia University of Medical Sciences, Social Determinants of Health Research Center, Urmia, Iran.

出版信息

Turkiye Parazitol Derg. 2020 Dec 2;44(4):191-196. doi: 10.4274/tpd.galenos.2020.6886.

Abstract

OBJECTIVE

Among the mosquitoes, plays a notable role in the transmission of avian malaria, tularemia and arboviral diseases, including West Nile fever. We conducted this study to characterise the cytochrome oxidase I (COI) and internal transcribed spacer 2 (ITS2) fragments of in northwestern Iran to determine the classification status of this species.

METHODS

The COI and ITS2 fragments from six populations of were amplified, sequenced and analysed. For phylogenetic analysis, the evolutionary history was estimated using the Tamura-Nei-based Maximum Likelihood approach.

RESULTS

Thirteen sequences (six for ITS2 and seven for COI) from six populations of were acquired and deposited into the GenBank. Phylogenetic analysis showed that the COI sequences from the current study cluster together with the same species from other parts of the world. Moreover, the ITS2 sequences of the current study and sequences retrieved from the GenBank, despite intraspecies variation, fall into a distinct clade with acceptable bootstrap values.

CONCLUSION

Notable genetic variations were observed between various populations based on the evaluations of ITS2 and COI fragments. By conducting such studies, the exact classification status of this species can be determined.

摘要

目的

在蚊子中, 在传播禽疟、兔热病和虫媒病毒病(包括西尼罗河热)方面发挥了显著作用。我们进行这项研究是为了描述伊朗西北部 的细胞色素氧化酶 I(COI)和内部转录间隔区 2(ITS2)片段,以确定该物种的分类地位。

方法

从六个 的种群中扩增、测序和分析 COI 和 ITS2 片段。为了进行系统发育分析,使用基于 Tamura-Nei 的最大似然法估计进化历史。

结果

从六个 的六个种群中获得并保存在 GenBank 中的 13 个序列(ITS2 有 6 个,COI 有 7 个)。系统发育分析表明,本研究中的 COI 序列与来自世界其他地区的相同物种聚在一起。此外,本研究的 ITS2 序列和从 GenBank 检索到的序列虽然存在种内变异,但在具有可接受的自举值的一个明显分支中。

结论

根据对 ITS2 和 COI 片段的评估,在不同的 种群之间观察到显著的遗传变异。通过进行这样的研究,可以确定该物种的确切分类地位。

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