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Developing New Microsatellite Markers of Sogatella furcifera by using NGS Technology
Hwa Yeun Nam,Brad Coates,Kyung Seok Kim,Chris Wright,Marana Park,Joon-Ho Lee 한국응용곤충학회 2014 한국응용곤충학회 학술대회논문집 Vol.2014 No.04
White-backed planthopper, Sogatella furcifera (Horvath) (Hemiptera: Delphacidae), has been a serious migratory pest in Korea. It is important to figure out the migration route and gene flow of S. furcifera. Microsatellite marker (SSR) shows high efficiency as molecular markers. Unfortunately, various microsatellite marker of S. furcifera has not been developed to see genetic diversity. S. furcifera samples were collected from Vietnam, Laos and three different sites of Bangladesh in 2012. We extracted DNA by using QIAamp DNA Mini Kit and ran next generation DNA sequencer (NGS) Roche 454 to develop a new microsatellite marker. Roughly, about 18 singleton primers and 14 contigs primers were found. We will test these primers with S. fucifera DNA samples, and figure out the accurate new microstatellite marker.
Hwa Yeun Nam,Yu Jeong Park,Joon-Ho Lee 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
Aphis gossypii is considered as one of the most polyphagous aphid species and found throughout the world. This pestinduce plant deformation and transmit viruses by feeding the host plant. In Korea, A. gossypii has been occurred in manycrops, however, the population genetic structure of this pest has not been revealed. In this study, we used eight microsatellitemarkers to analysis the population genetic structure of A. gossypii in Korea. We collected A. gossypii specimens frompepper greenhouse in 2016 (18 sites) and 2017(15 sites). As a result, two genetic cluster (△K=2) showed in structureanalysis. As we compared the cluster result between 2016 and 2017, several populations appeared opposite clustering groupeven the samples were collected in same site and crop. Therefore, more samples are required from different greenhouse(same host) to identify the accurate genetic cluster of province in Korea. From this study, the genetic variation revealedfrom A. gossypii and this information may develop sustainable management of A. gossypii.
Hwa Yeun Nam,Kyung Seok Kim,Brad Coates,Marana Park,Joon-Ho Lee 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.04
White-backed planthopper, Sogatella furcifera (Horváth) (Hemiptera: Delphacidae), is known as a long-range migratory pest in Asia. Although exact primary source of S. furcifera in Korea remains unknown. We used twelve microsatellite markers (SSR) to analyze the population genetic structure of the pest. We collected S. furcifera from Asia in 2012 (Korea, Laos, Nepal, Thailand, Vietnam and four different sites of Bangladesh), 2013 (China, Nepal, Thailand, two different sites of Bangladesh, and fifteen different sites of Korea), and 2014 (four different sites of China and ten different sites of Korea). To verify the genetic variance, we used STRUCTURE program to obtain structure analysis of K and K showed in three components in genetic clustering. Result in sample 2012, similar genetic structure showed in Korea and Vietnam. In 2013 and 2014, various genetic structure revealed in different sites of Korea and Asian population genetic structure appeared as on large panmictic population. Furthermore, we tested migration pathway to see the probable source and reciplent populations of first generation migrants in S. furcifera. In 2012, Laos, Nepal, Thailand, Vietnam and four different sites of Bangladesh showed the potential source of S. furcifera. In 2013, we observed S. furcifera in Korea was more likely originated from Nepal and Bangladesh. Various migration pathway showed in fifteen different sites of Korea as panmictic population. Lastly in 2014, the migration pathway indicated that S. furcifera migrates from China to Korea. Seemingly, S. furcifera in Asia display as large panmictic population and more study is acquire to verify the origin source.