Abstract
We developed microsatellite markers for Appasus japonicus (Heteroptera: Belostomatidae). This belostomatid bug is distributed in East Asia (Japanese Archipelago, Korean Peninsula and mainland China) and often listed as an endangered species in the Red List or the Red Data Book at the national and local level in Japan. Here, we describe twenty novel polymorphic microsatellite loci developed for A. japonicus, and marker suitability was evaluated using 56 individuals from four A. japonicus populations (Nagano, Hiroshima and Yamaguchi prefectures, Japan, and Chungcheongnam-do, Korea). The number of alleles per locus ranged from 1 to 12 (mean = 2.5), and the average observed and expected heterozygosity and fixation index per locus were 0.270, 0.323 and 0.153, respectively. In addition, a population structure analysis was conducted using the software STRUCTURE, and its result suggested that the 20 markers described here will be useful for investigating the genetic structure of A. japonicus populations, which should contribute to population genetics studies of this species.
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