Population genetic characterization of (Aedes albopictus) mosquitoes (Diptera: Culicidae) from the Yangtze River Basin of China based on rDNA-ITS2

作者：Zu Ma, Dan Xing, Qing Liu, Jian Gao, Ge Wang, Chunxiao Li, Xiaoxia Guo, Yuting Jiang, Teng Zhao, Teng Zhao, Xinyu Zhou, Hengduan Zhang, Tongyan Zhao, Tongyan Zhao · 发表于：Infection Genetics and Evolution · 年份：2023 · DOI：10.1016/j.meegid.2023.105485 · 被引用次数：9 · 研究领域：Mosquito-borne diseases and control、Malaria Research and Control、Invertebrate Immune Response Mechanisms

BACKGROUND: Aedes albopictus is an important vector of many mosquito-borne viral diseases, including dengue fever and Zika. In recent years, it has spread and colonized tropical, subtropical and temperate regions worldwide. Monitoring of Ae. albopictus population dynamics is an important tool for early warning of mosquito-borne infections. Because the genetic diversity and genetic structure of natural populations are the genetic bases of population dynamics, studies of population genetics can reveal the origin, differentiation and dispersal characteristics of Ae. albopictus populations. Then, their evolutionary potential and environmental adaptability can be analyzed, providing a theoretical basis for the formulation of accurate Ae. albopictus surveillance and integrated control programs. METHODS: In 2018, 552 Ae. albopictus larvae were collected during an invasive mosquito species surveillance project in China's Yangtze River Basin. Morphological analysis was performed to assign the adult mosquitoes to species, and then the genetic marker ITS2 was amplified and sequenced. RESULTS: There were 179 haplotypes among 552 ITS2 sequences. In total, 155/179 (86.59%) haplotypes were specific to individual populations, and 24/179 (13.41%) haplotypes were shared by populations. Hap4 (126), Hap7 (43), and Hap16 (34) were the most numerous haplotypes and the most widely distributed. The overall Hd was 0.928, π was 0.031, the mean nucleotide difference number (K) was 7.255, and the number...