Genetic diversity of Aedes aegypti and Aedes albopictus from cohabiting fields in Hainan Island and the Leizhou Peninsula, China

作者：Minghui Zhao, Xin Ran, Yu Bai, Zu Ma, Jian Gao, Dan Xing, Chunxiao Li, Xiaoxia Guo, Xianyi Jian, Wei Liu, Yun Liao, Kan Chen, Hengduan Zhang, Tongyan Zhao · 发表于：Parasites & Vectors · 年份：2023 · DOI：10.1186/s13071-023-05936-5 · 被引用次数：18 · 研究领域：Mosquito-borne diseases and control、Malaria Research and Control、Invertebrate Immune Response Mechanisms

Abstract Background Aedes aegypti and Ae. albopictus are important human arbovirus vectors that can spread arboviral diseases such as yellow fever, dengue, chikungunya and Zika. These two mosquito species coexist on Hainan Island and the Leizhou Peninsula in China. Over the past 40 years, the distribution of Ae. albopictus in these areas has gradually expanded, while Ae. aegypti has declined sharply. Monitoring their genetic diversity and diffusion could help to explain the genetic influence behind this phenomenon and became key to controlling the epidemic of arboviruses. Methods To better understand the genetic diversity and differentiation of these two mosquitoes, the possible cohabiting areas on Hainan Island and the Leizhou Peninsula were searched between July and October 2021, and five populations were collected. Respectively nine and 11 microsatellite loci were used for population genetic analysis of Ae. aegypti and Ae. albopictus . In addition, the mitochondrial coxI gene was also selected for analysis of both mosquito species. Results The results showed that the mean diversity index (PIC and SI values) of Ae. albopictus (mean PIC = 0.754 and SI = 1.698) was higher than that of Ae. aegypti (mean PIC = 0.624 and SI = 1.264). The same results were also observed for the coxI gene: the genetic diversity of all populations of Ae. albopictus was higher than that of Ae. aegypti (total H = 45 and Hd = 0.89958 vs. total H = 23 and Hd = 0.76495, respectively). UPGMA dendrogram, ...