Abstract
AbstractThe Asian tiger mosquito, Aedes albopictus, is a common mosquito in East and Southeast Asia, but its habitats have expanded to the American, African and Australian continents, Europe and many other areas. Aedes albopictus can transmit some important arboviruses that cause human mortality. To control the global spread of this mosquito, genetic analyses of A. albopictus populations have been undertaken throughout the world. In Japan, however, few attempts have been made to characterize the population structures of these mosquitos. In this study, adult A. albopictus populations were sampled from seven parks in the urban area of Tokyo, and analyses of the mitochondrial cytochrome c oxidase subunit 1 (COI) gene base sequences revealed small genetic variations. Only three haplotypes were identified, and most of the samples belonged to a single haplotype. In addition, despite a developed international trade network, no establishment of A. albopictus populations from multiple origins was found. We also evaluated the genetic diversity outside Tokyo using data from a previous study for comparison and found that the genetic diversity in the urban area of Tokyo was lower than that in Nagasaki City (Japan) and in other countries, including the USA and Italy, where A. albopictus populations from Japan have been established.
Published Version
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