Ruiling Zhang, Peien Leng, Xuejun Wang, Zhong Zhang
a Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases , Taishan Medical University , Taian , China.
b School of Basic Medical Science , Taishan Medical University , Taian , China.
Mitochondrial DNA A DNA Mapp Seq Anal. 2018 May;29(4):594-599. doi: 10.1080/24701394.2017.1325481. Epub 2017 May 13.
Aedes albopictus is one of the most invasive species, which can carry Dengue virus, Yellow fever virus and more than twenty arboviruses. Based on mitochondrial gene cytochrome c oxidase I (COI) and samples collected from 17 populations, we investigated the molecular character and genetic diversity of Ae. albopictus from China. Altogether, 25 haplotypes were detected, including 10 shared haplotypes and 15 private haplotypes. H1 was the dominant haplotype, which is widely distributed in 13 populations. Tajima'D value of most populations was significantly negative, demonstrating that populations experienced rapid range expansion recently. Most haplotypes clustered together both in phylogenetic and median-joining network analysis without clear phylogeographic patterns. However, neutrality tests revealed shallow divergences among Hainan and Guangxi with other populations (0.15599 ≤ F ≤ 0.75858), which probably due to interrupted gene flow, caused by geographical isolations. In conclusion, Ae. albopictus populations showed low genetic diversity in China.
白纹伊蚊是最具入侵性的物种之一，它能携带登革病毒、黄热病病毒以及二十多种虫媒病毒。基于线粒体基因细胞色素c氧化酶I（COI）以及从17个种群采集的样本，我们研究了中国白纹伊蚊的分子特征和遗传多样性。总共检测到25个单倍型，包括10个共享单倍型和15个私有单倍型。H1是优势单倍型，广泛分布于13个种群中。大多数种群的Tajima'D值显著为负，表明这些种群最近经历了快速的范围扩张。在系统发育和中介连接网络分析中，大多数单倍型聚集在一起，没有明显的系统地理模式。然而，中性检验显示海南和广西的种群与其他种群之间存在轻微分化（0.15599≤F≤0.75858），这可能是由于地理隔离导致基因流中断所致。总之，中国的白纹伊蚊种群遗传多样性较低。
