Genetic analysis of the adaptation of brown planthopper to rice variety IR64

Research Project

Project/Area Number	25850037
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Plant protection science
Research Institution	National Institute of Agrobiological Sciences
Principal Investigator	Kobayashi Tetsuya 国立研究開発法人農業生物資源研究所, その他部局等, 研究員 (90355321)
Project Period (FY)	2013-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000) Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords	抵抗性作物 / バイオタイプ / 圃場抵抗性 / イネ害虫 / トビイロウンカ抵抗性
Outline of Final Research Achievements	IR64 is the rice variety that has stable field resistance against brown planthopper (BPH), Nilaparvata lugens for dicades. Two BPH strains that show different performances on IR64 were produced and used for analyzing inheritance of the performance on IR64. F2 generation from parents of two strains exhibited intermediate performance. However, the inheritance did not follow the Mendelian law. RADseq and QTL analyses were performed to identify number and location of the genetic factors mediating performance on IR64.