Home >> Journal of Economic Entomology, Volume 102, Number 1

A Survey of Rhipicephalus microplus Populations for Mutations Associated With Pyrethroid Resistance

Authors: Chen, Andrew C.; He, Haiqi; Temeyer, Kevin B.; Jones, Shirley; Green, Peter; Barker, Stephen C.

Source: Journal of Economic Entomology, Volume 102, Number 1, February 2009 , pp. 373-380(8)

Publisher: Entomological Society of America

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Abstract:

Mutations associated with pyrethroid resistance were found in Mexican strains of Rhipicephalus microplus (Canestrini). A mutation in the sodium channel gene was reported in strains highly resistant to permethrin and another mutation in an esterase gene in a strain that shows moderate resistance to the same pesticide. Methods based on the melting temperature difference of amplified allele-specific DNA fragments were developed that can detect these mutations rapidly in individual larvae. When these methods were applied to ticks from various strains of R. microplus from Australia, neither of these mutations could be demonstrated. Different resistance mechanisms have apparently developed independently between Australian and Mexican strains of R. microplus.

Keywords: acaricide; DNA melting temperature; polymerase chain reaction; sodium channel; esterase

Document Type: Research article

DOI: http://dx.doi.org/10.1603/029.102.0148

Publication date: 2009-02-01

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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