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

2015 Fiscal Year Final Research Report

• 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
• Keywords: 抵抗性作物 / バイオタイプ / 圃場抵抗性 / イネ害虫

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.

Free Research Field

応用昆虫学