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Analyzing haplodiploid inheritance of insecticide resistance in whitefly biotypes
Bulletin of entomological research, Vol.99(3), pp.307-315
06/01/2009
Handle:
https://hdl.handle.net/2376/104583
PMID: 19159498
Abstract
We developed new methods for analyzing inheritance of insecticide resistance in haplocliploid arthropods and applied them to elucidate resistance of the whitefly Bemisia tabaci (Gennadius) to an insect growth regulator, pyriproxyfen. Two invasive biotypes of this devastating crop pest, the B biotype in Arizona and the Q biotype in Israel, have evolved resistance to pyriproxyfen. Here, we incorporated data from laboratory bioassays and crossing procedures exploiting haplodiploidy into statistical and analytical models to estimate the number of loci affecting pyriproxyfen resistance in strains of both biotypes. In tests with models of one to ten loci, the best fit between expected and observed mortality occurred with a two-locus model for the B biotype strain (QC-02) and for one- and two-locus models for the Q biotype strain (Pyri-R). The estimated minimum number of loci affecting resistance was 1.6 for the B biotype strain and 1.0 for the Q biotype strain. The methods used here can be applied to insecticide resistance and other traits in haplocliploid arthropods.
Peer reviewed
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Details
- Title
- Analyzing haplodiploid inheritance of insecticide resistance in whitefly biotypes
- Creators
- D. W CrowderA. R HorowitzB. E TabashnikT. J DennehyIan DenholmK GormanY Carriere
- Publication Details
- Bulletin of entomological research, Vol.99(3), pp.307-315
- Academic Unit
- Entomology, Department of
- Identifiers
- 99900546956801842
- Language
- English
- Resource Type
- Other