PMID: 11332850May 3, 2001Paper

Modeling the dynamics of adaptation to transgenic corn by western corn rootworm (Coleoptera: Chrysomelidae)

Journal of Economic Entomology
D W OnstadM E Gray

Abstract

A simulation model of the population dynamics and genetics of the western corn rootworm, Diabrotica virgifera virgifera LeConte, was created for a landscape of corn, soybean, and other crops. Although the model was created to study a 2-locus problem for beetles having genes for resistance to both crop rotation and transgenic corn, during this first phase of the project, the model was simulated to evaluate only resistance management plans for transgenic corn. Allele expression in the rootworm and toxin dose in the corn plant were the two most important factors affecting resistance development. A dominant resistance allele allowed quick evolution of resistance to transgenic corn, whereas a recessive allele delayed resistance >99 yr. With high dosages of toxin and additive expression, the time required to reach 3% resistance allele frequency ranged from 13 to >99 yr. With additive expression, lower dosages permitted the resistant allele frequency to reach 3% in 2-9 yr with refuges occupying 5-30% of the land. The results were sensitive to delays in emergence by susceptible adults and configuration of the refuge (row strips versus blocks).

Citations

Feb 7, 2003·Proceedings of the National Academy of Sciences of the United States of America·Yves CarrièreBruce E Tabashnik
Jul 23, 2013·Pest Management Science·Paul T MarquardtWilliam G Johnson
Jun 13, 2012·GM Crops & Food·Aaron J GassmannMike W Dunbar
Oct 3, 2014·Environmental Science and Pollution Research International·Lorenzo Furlan, David Kreutzweiser
Mar 20, 2008·Environmental Entomology·Isaac O OyediranBruce E Hibbard
Oct 2, 2009·Environmental Entomology·Paul T Marquardt, Christian H Krupke
May 17, 2019·Archives of Insect Biochemistry and Physiology·Kui WangJie Zhang
Jul 21, 2012·Journal of Economic Entomology·Bruce E Tabashnik, Fred Gould
Mar 17, 2011·Journal of Economic Entomology·Torrence A GillDawn S Luthe
Dec 21, 2011·Environmental Entomology·L M KnolhoffM R Berenbaum

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