Genetic Differentiation of Brown Planthopper Nilaparvata lugens (Stål) Populations in Asia

Brown Planthopper is one of the economically important rice pests that cause several crop failures in Asian countries. Unfortunately, could migrate to neighboring countries generate interpopulation breeding, thus further increasing gene flow and spreading insecticide resistance. This research aimed understand genetic differentiation among all populations. study used two COI sequences from Malang, Indonesia, 25 GenBank analyze structure with phylogenetic tree haplotype network. The uncorrected pairwise distance result showed population Asia has a relatively low distance. We also found was clustered based on geographical region South Asia, East Asia-Mainland Indonesia. Thus, we concluded migration limited Mainland only. Further studies are needed confirm route Southeast AsiaKeywords: BPH, Genetic differentiation, Haplotype network, Phylogenetic