Insect oviposition behavior affects the evolution of adaptation to Bt crops: consequences for refuge policies View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2010-02-18

AUTHORS

Maarten A. Jongsma, Fred Gould, Mathieu Legros, Limei Yang, Joop J. A. van Loon, Marcel Dicke

ABSTRACT

The major lepidopteran insect pests of cotton and maize harbor intra-specific variation for behavior determining the selection of host plants for oviposition. Yet, the consequences of behavioral adaptation for fitness have neither been modeled nor monitored for Bt cotton and maize crops, the most widely grown transgenic herbivore-resistant plants. Here, we present a general two-locus heuristic model to examine potential outcomes of natural selection when pest populations initially have low frequencies of alleles for both physiological and behavioral adaptation to Bt crops. We demonstrate that certain ecological conditions allow for the evolution of behavioral choices favoring alternative oviposition hosts that limit the increase in resistance alleles, even when they are phenotypically dominant. These results have implications for current refuge policies, which should be adapted to promote the evolution of certain behavioral choices for alternative oviposition hosts in addition to dilution of physiological resistance alleles. Collection of data on oviposition host preference as a component of monitoring schemes will provide important insights into mechanisms underlying the durability of Bt-transgenic host-plant resistance. More... »

PAGES

1017-1030

References to SciGraph publications

  • 2008-10. Field-evolved resistance to Bt toxins in NATURE BIOTECHNOLOGY
  • 2008-10. Field-evolved resistance to Bt toxins in NATURE BIOTECHNOLOGY
  • 2008-02-07. Insect resistance to Bt crops: evidence versus theory in NATURE BIOTECHNOLOGY
  • 1986. Genetic Differences in Oviposition Preference Between Two Populations of Heliothis virescens in EVOLUTIONARY GENETICS OF INVERTEBRATE BEHAVIOR
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10682-010-9368-3

    DOI

    http://dx.doi.org/10.1007/s10682-010-9368-3

    DIMENSIONS

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