The Nilaparvata lugesn(BPH) and Laodelphax striatellus(SBPH) are major insect pests of rice in Korea. These BPHs migrate from China to Korea, but we have not exactly known about the route of long-distance migration of them. Molecular markers including microsatellite will be critical to asses gene flow in relation to geographical distance. In our work several microsatellite markers were developed for basic population genetic analysis of BPH and SBPH. Among each 21 microsatellite markers in BPH and SBPH, we could select 6 markers for BPH and 2 markers for SBPH as putative markers for analysis of population genetics. Others are further investigated for the possibility as markers. Development of polymorphic microsatellite loci are final stage of our work. But for good microsatellite markers to population genetics, we should do more experiments. Our work for development of microsatellites should facilitate the study of future population genetics of BPH and SBPH, and eventually elucidate the route of BPH and SBPH migration to Korea.

• Su-Jung Min(Division of Applied Life Science(BK21), Gyeong-Sang National University)
• Chung Gyoo Park(Division of Applied Life Science(BK21), Gyeong-Sang National University)
• Yoo-Han Song(Institute of Agriculture and Life Science, Gyeong-Sang National University)
• Siwoo Lee(Division Applied Entomology Department Agricultural Biology National Academy of Agricultural Science, R.D.A)
• Heewon Lee(Korean Minjok Leadership Academy)
• Kyung Seok Kim(College of Veterinary Medicine, Seoul National University)