褐飞虱生物型研究进展:致害性变异的遗传机制  

The brown planthopper biotypes: on the genetic mechanism of virulence

作　　者：周亦红[1] 韩召军[1] 

机构地区：[1]南京农业大学农业部病虫监测与治理重点实验室,南京210095

出　　处：《昆虫知识》2003年第3期199-203,共5页Entomological Knowledge

基　　金："973"国家重点基金研究项目资助 (J2 0 0 0 0 162 )

摘　　要：能够“克服”水稻抗性的褐飞虱生物型的出现 ,是目前水稻育种及害虫防治工作中面临的重大难题。为探明褐飞虱生物型的形成机制 ,许多学者致力于生物型致害性的遗传学研究 ,然而得出的结论却不尽一致。该文综述了有关褐飞虱生物型研究中争论较多的 3个方面 ,即生物型致害性的稳定性 ,致害性的遗传机制 ,以及生物型的形成机制 ,并介绍了最新的研究进展 。The occurrence of brown planthopper (BPH) biotypes,which have evolved virulence to resistant rice varieties with different major resistance genes, has become a serious problem in rice breeding and pest controlling.To clarify the mechanisms in the development of BPH biotypes,many studies have been done on the genetics of different BPH biotypes,but untill now,disagreements still exist on some basic problems.This paper reviews research on the brown planthopper (BPH) biotype with respect to three aspects that are currently in dispute: the stability of biotype virulence, the genetic mechanism of this virulence, and the mechanism of biotype occurrence. New research trends on the BPH biotype are introduced and future research prospects are discussed.

关 键 词：褐飞虱 生物型 致害性 遗传机制 稻区 

分 类 号：S433[农业科学—农业昆虫与害虫防治]