alexa Study Confirming Resistance to Fenitrothion of Culex pipiens (Diptera: Culicidae) from Central Tunisia | OMICS International | Abstract
ISSN: 2161-1041

Hereditary Genetics: Current Research
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Research Article

Study Confirming Resistance to Fenitrothion of Culex pipiens (Diptera: Culicidae) from Central Tunisia

Ahmed Tabbabi1*, Jaber Daaboub1,2, Ali Laamari1, Raja Ben Cheikh1, Ibtissem Ben Jha1 and Hassen Ben Cheikh1

1Laboratory of Genetics, Faculty of Medicine of Monastir, Monastir University, 5019, Monastir, Tunisia

2Department of Hygiene and Environmental Protection, Ministry of Public Health, 1006, Bab Saadoun, Tunis, Tunisia

*Corresponding Author:
Tabbabi A
Laboratory of Genetics, Faculty of Medicine of Monastir
Monastir University, 5019, Monastir, Tunisia
Tel: 73500276
Fax: 73500278
E-mail: [email protected]

Received Date: May 04, 2017; Accepted Date: May 10, 2017; Published Date: May 15, 2017

Citation: Tabbabi A, Daaboub J, Laamari A, Cheikh RB, Cheikh HB, et al. (2017) Study Confirming Resistance to Fenitrothion of Culex pipiens (Diptera: Culicidae) from Central Tunisia. Hereditary Genet 6: 176. doi:10.4172/2161-1041.1000176

Copyright: © 2016 Tabbabi A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Five natural populations of Culex pipiens were taken as larvae in the central Tunisia to evaluate their resistance level of fenitrothion. Our study showed that all samples were resistant to fenitrothion at LC50. The RR50 ranged from 9.2 in sample # 2 to 59.2 in sample # 5. Starch electrophoresis detected the overproduced esterases in all studied samples. The most frequent esterase A2B2 was detected in samples # 5 with a frequency of 31%. Three other esterases were detected in samples # 1, 2, 3, and 4: A4-B4 and/or A5-B5, A12, and C1. Synergists showed that the involvement of CYTP450 in the resistance to fenitrothion (OP) is not neglected. Cross-resistance of fenitrothion and propoxur was detected indicate the involvement of target site alteration (AChE1) in fenitrothion resistance. It should be noted that study of the polymorphism of AChE 1 will be of great importance.

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