RICE SCIENCE

• Research Paper • Previous Articles    

Bacterial Community in Different Populations of Rice Brown Planthopper Nilaparvata lugens (St?l)

  1. 1Institute of Insect Science, Zhejiang University, Hangzhou 310029, China; 2State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Online:2014-01-28 Published:2013-11-28
  • Contact: YE Gong-yin ; LU Zhong-xian
  • Supported by:
    This study was funded by the National Basic Research Program of China (973, Grant No. 2010CB126202), the Agro-Industry R & D Special Fund of China (Grant No. 201003031).

Abstract: The structures of bacterial communities in the brown planthopper (BPH) Nilaparvata lugens (St?l) from different geographic and resistant virulent populations were analyzed by using denatured gradient gel electrophoresis (DGGE). Results showed that the bacterial communities in BPH nymph from the first to the fifth instars varied with nymphal growth and development. The bacterial communities in the first-instar BPH nymph were similar to those in adults. Nine geographic BPH populations were divided into three groups based on the cluster analysis of DGGE fingerprint. The first group was from the Philippines; the second group was from Thailand and Hainan, Yunnan and Zhejiang provinces of China; and the third group was from Vietnam and Guangxi, Hunan and Jiangxi provinces of China. BPH populations adapted to different resistant rice varieties. The BPH populations from Mudgo (with resistant gene Bph1) and ASD7 (with resistant gene bph2) differed with those of the susceptible rice variety TN1.

Key words: brown planthopper, endosymbiont, bacterial community, geographic population, virulence, resistant variety