›› 2006, Vol. 49 ›› Issue (5): 874-877.

• RESEARCH PAPERS • Previous Articles     Next Articles

Microsatellite DNA polymorphism in different pesticideresistant strains of the oriental fruitfly Bactrocera dorsalis (Hendel) (Diptera: Tetriphitidae)

PAN Zhi-Ping, ZENG Ling, WEN Shuo-Yang   

  1. (Department of Entomology, South China Agricultural University, Guangzhou 510642, China)
  • Online:2006-11-06 Published:2006-10-20
  • Contact: ZENG Ling

Abstract:  In order to detect the genetic change in the pesticide-resistant strains of the oriental fruitfly Bactrocera dorsalis (Hendel), the genomes of a sensitive strain and three pesticide-resistant strains (TrR-resistant strain, AlR-resistant strain and AbR-resistant strain) of the fruitfly were screened using two microsatellite DNA primers. Distinct microsatellite DNA polymorphism was detected in the four strains, revealing that genetic background had changed in the tested strains. The results may contribute to further understanding the mechanism of pesticide resistance of the fly and provide some guidance for the controlling and monitoring the appearance of pesticide resistance in the field.

Key words: Bactrocera dorsalis, sensitive strain, resistant strain, microsatellite, DNA polymorphism