Test for association of DDT resistance with inversion polymorphism in Anopheles arabiensis from Ethiopia.

Type

Article

Date of Publication

1995

Original Publication

Journal of the American Mosquito Control Association

Volume

11

Series / Issue

Issue: 2 Pt 1

Pages

238-240

Contributed by

American Mosquito Control Association

Notes

Author(s) - Nigatu W.Curtis CF.Lulu M.

 

Abstract

Association of DDT resistance levels with chromosome inversion polymorphism was investigated in Anopheles arabiensis samples collected from southwestern Ethiopia. The frequencies of the 2Ra, 2Rd, and 3Ra inversions in 1988 and 1990 between the DDT survivors pooled from the 3 times of exposure and unexposed controls did not differ significantly. However, for 2Rb a significant association was observed (Mantel-Haenszel chi 2, stratified for year of collection = 10.4, P < 0.001). The inversion frequency was 56% among unexposed individuals, but it was 64-92% among those surviving exposure.

Notes

Author(s) - Nigatu W.Curtis CF.Lulu M.