(Diptera: Culicidae) is a mosquito species of significant medical and veterinary importance. It is widely distributed across Southeast and East Asia and is commonly found throughout Thailand. This study assessed the genetic diversity and population structure of in Thailand using the cytochrome oxidase subunit I () gene sequences. Additionally, wing shape variations among these populations were examined using geometric morphometrics (GM). Our results demonstrated that the overall haplotype diversity () was 0.634, and the nucleotide diversity () was 0.0019. Significant negative values in neutrality tests ( < 0.05) indicate that the populations in Thailand are undergoing a phase of expansion following a bottleneck event. The mismatch distribution test suggests that the populations may have started expanding approximately 16,678 years ago. Pairwise genetic differentiation among the 12 populations based on revealed significant differences in 32 pairs ( < 0.05), with the degree of differentiation ranging from 0.000 to 0.419. The GM analysis of wing shape also indicated significant differences in nearly all pairs ( < 0.05), except for between populations from Nakhon Pathom and Samut Songkhram, and between those from Chiang Mai and Mae Hong Son, suggesting no significant difference due to their similar environmental settings. These findings enhance our understanding of the population structure and phenotypic adaptations of mosquito vectors, providing vital insights for the formulation of more efficacious vector control strategies.

中文翻译：

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泰国丝虫媒介Armigeres subalbatus（双翅目：蚊科）的种群遗传结构和翅膀几何形态测量

（双翅目：蚊科）是一种具有重要医学和兽医意义的蚊种。它广泛分布于东南亚和东亚，在泰国各地都很常见。本研究利用细胞色素氧化酶亚基 I () 基因序列评估了泰国的遗传多样性和种群结构。此外，还使用几何形态测量学（GM）检查了这些种群之间翅膀形状的变化。我们的结果表明，总体单倍型多样性 () 为 0.634，核苷酸多样性 () 为 0.0019。中立性测试中的显着负值（<0.05）表明泰国人口在瓶颈事件后正在经历一个扩张阶段。错配分布检验表明，种群数量可能在大约 16,678 年前就开始扩张。对12个居群进行配对遗传分化，发现有32对存在显着差异（<0.05），分化程度在0.000至0.419之间。对翅膀形状的 GM 分析还表明，除了佛统府和夜功颂府的种群之间以及清迈和夜丰颂府的种群之间外，几乎所有配对的种群之间都存在显着差异（< 0.05），这表明由于它们相似的环境而没有显着差异设置。这些发现增强了我们对蚊媒种群结构和表型适应性的理解，为制定更有效的媒介控制策略提供了重要的见解。