Dispersal patterns and population genetic structure of Aedes albopictus (Diptera: Culicidae) in three different climatic regions of China

Abstract Background Aedes albopictus is an indigenous primary vector for dengue and Zika viruses in China. Compared with its insecticide resistance, biology competence, little known about genetic variation, which corresponds to environmental variations. Thus, the present study examines how Ae. varies among different climatic regions China deciphers potential dispersal patterns. Methods The variation population structure of 17 populations collected from three were investigated 11 microsatellite loci mitochondrial coxI gene. Results Of 44 isolated markers, pairs chosen genotyping analysis had average PIC value 0.713, representing high polymorphism. number alleles was each population, n e increasing temperate region (3.876) tropical (4.144). Twenty-five haplotypes detected, highest diversity observed region. mean Ho (ca. 0.557) all significantly lower than He 0.684), nearly departing HWE displaying significant expansion ( p < 0.05). Two genetically groups haplotype clades evaluated via STRUCTURE phylogenetic analyses, those other regions. Most detected within individuals at 31.40 63.04%, respectively, AMOVA test, a relatively positive correlation only IBD R 2 = 0.6614, 0.048). Recent dispersions populations, four major migration trends gene flow (Nm > 0.4) reconstructed between two Environmental factors, especially temperature rainfall, may be leading causes Conclusions Continuous dispersion contributes communication across regions, variation. Graphical