Abstract
For maize and cotton, transgenic varieties that express toxins derived from Bacillus thuriengensis (Bt) are now planted in several countries. To slow resistance evolution, the “high-dose/refuge” strategy is broadly implemented in which resistance is recessive and some fields (or areas within fields) are planted exclusively with Bt crops and other fields planted exclusively with non-transgenic refuge crops for susceptible insects. This strategy, however, could potentially be undermined by contamination. Here, we investigate general models of resistance evolution for high-dose events in which fields are contaminated due to the inadvertent mixing of seeds, volunteer plants, or pollen flow between Bt and non-Bt varieties coupled with seed-saving by farmers. Contamination of the refuge by Bt plants increases selection for resistance, thereby speeding resistance evolution. Nonetheless, in most situations this effect is small. Contamination of Bt fields by non-transgenic plants might be expected to have the opposite effect and always reduce the rate of resistance evolution. While this is often the case, it is not always so. If larvae move among plants within a field, then high movement rates may reverse the effect of contamination of Bt fields to slow resistance evolution. Furthermore, if the dispersal rates of adult females between Bt and refuge fields are low, then contamination of Bt fields may speed resistance. These results suggest that contamination has the potential to undermine the efficacy of the high-dose/refuge strategy, yet depending upon the particular pest and situation, contamination may not be a concern.
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References
Alstad DN, Andow DA (1995) Managing the evolution of insect resistance to transgenic plants. Science 268:1894–1896
Bagla P (2010) Hardy cotton-munching pests are latest blow to GM crops. Science 327:1439
Barbosa P, Krischik V, Lance D (1989) Life-history traits of forest-inhabiting flightless lepidoptera. Am Midl Nat 122:262–274
Berger A (1992) Larval movements of Chilo partellus (Lepidoptera: Pyralidae) within and between plants—timing, density responses and survival. Bull Entomol Res 82:441–448
Caprio MA (2001) Source-sink dynamics between transgenic and non-transgenic habitats and their role in the evolution of resistance. J Econ Entomol 94:698–705
Caprio MA, Sumerford DV, Simms SR (2000) Evaluating transgenic plants for suitability in pest and resistance management programs. In: Lacey L, Kaya H (eds) Field manual of techniques in invertebrate pathology. Kluwer, Boston, pp 805–828
Carrière Y, Ellers-Kirk C, Sisterson M, Antilla L, Whitlow M, Dennehy TJ, Tabashnik BE (2003) Long-term regional suppression of pink bollworm by Bacillus thuringiensis cotton. Proc Natl Acad Sci U S A 100:1519–1523
Carrière YP, Dutilleul P, Ellers-Kirk C, Pedersen B, Haller S, Antilla L, Dennehy TJ, Tabashnik BE (2004) Sources, sinks, and the zone of influence of refuges for managing insect resistance to Bt crops. Ecol Appl 14:1615–1623
Chilcutt CF, Tabashnik BE (2004) Contamination of refuges by Bacillus thuringiensis toxin genes from transgenic maize. Proc Natl Acad Sci U S A 101:7526–7529
Cohen MB, Romena AM, Gould F (2000) Dispersal by larvae of the stem borers Scirpophaga incertulas (Lepidoptera: Pyralidae) and Chilo suppressalis (Lepidoptera: Crambidae) in plots of transplanted rice. Environ Entomol 29:958–971
Crow JF, Kimura M (1970) An introduction to population genetic theory. Harper and Row, New York
Davis PM, Onstad DW (2000) Seed mixtures as a resistance management strategy for European corn borer (Lepidoptera: Crambidae) infesting transgenic corn expressing cry1Ab protein. J Econ Entomol 93:937–948
Dirie AM, Cohen MB, Gould F (2000) Larval dispersal and survival of Scirpophaga incertulas (Lepidoptera: Pyralidae) and Chilo suppressalis (Lepidoptera: Crambidae) on cry1Ab-transformed and non-transgenic rice. Environ Entomol 29:972–978
Downes S, Mahon RJ, Rossiter L, Kauter G, Leven T, Fitt G, Baker G (2010a) Adaptive management of pest resistance by Helicoverpa species (Noctuidae) in Australia to the Cry2Ab Bt toxin in Bollgard II (R) cotton. Evol Appl 3:574–584
Downes S, Parker T, Mahon R (2010b) Incipient resistance of Helicoverpa punctigera to the Cry2Ab Bt toxin in Bollgard II (R) cotton. PloS One 5:e12567
Ellstrand NC (2003) Dangerous liaisons? When cultivated plants mate with their wild relatives. Johns Hopkins University Press, Baltimore
Ellstrand NC, Hoffman CA (1990) Hybridization as an avenue of escape for engineered genes—strategies for risk reduction. Bioscience 40:438–442
Ellstrand NC, Prentice HC, Hancock JF (1999) Gene flow and introgression from domesticated plants into their wild relatives. Annu Rev Ecol Syst 30:539–563
Fadamiro HY, Baker TC (1999) Reproductive performance and longevity of female European corn borer, Ostrinia nubilalis: effects of multiple mating, delay in mating, and adult feeding. J Insect Physiol 45:385–392
Fitt GP, Andow DA, Carrière Y, Moar WJ, Schuler TH, Omoto C, Kanya J, Okech MA, Arama P, Maniania NK (2004) Resistance risks and management associated with Bt maize in Kenya. In: Hilbeck A, Andow DA (eds) Environmental risk assessment of transgenic organisms: a case study of Bt Maize in Kenya. CABI, Wallingford, pp 209–250
Friesen LF, Nelson AG, Van Acker RC (2003) Evidence of contamination of pedigreed canola (Brassica napus) seedlots in western Canada with genetically engineered herbicide resistance traits. Agron J 95:1342–1347
Gassman AJ, Carrière Y, Tabashnik BE (2009) Fitness costs of insect resistance to Bacillus thuringiensis. Annu Rev Entomol 54:127–145
Georghiou GP, Taylor CE (1986) Factors influencing the evolution of resistance. In: Council NR (ed) Pesticide resistance: strategies and tactics for management. National Academy Press, Washington, D.C., pp 157–169
Gould F, Martinezramirez A, Anderson A, Ferre J, Silva FJ, Moar WJ (1992) Broad-spectrum resistance to Bacillus thuringiensis toxins in Heliothis virescens. Proc Natl Acad Sci U S A 89:7986–7990
Gould F, Anderson A, Reynolds A, Bumgarner L, Moar W (1995) Selection and genetic analysis of a Heliothis virescens (Lepidoptera, Noctuidae) strain with high levels of resistance to Bacillus thuringiensis toxins. J Econ Entomol 88:1545–1559
Hassell MP (1975) Density dependence in single-species populations. J Anim Ecol 44:283–295
Haygood R, Ives AR, Andow AD (2003) Consequences of recurrent gene flow from crops to wild relatives. Proc R Soc Lond B 270:1879–1886
Heuberger S, Ellers-Kirk C, Yafuso C, Gassmann AJ, Tabashnik BE, Dennehy TJ, Carrière Y (2008) Effects of refuge contamination by transgenes on Bt resistance in pink bollworm (Lepidoptera: Gelechiidae). J Econ Entomol 101:504–514
Hibbard BE, Duran DP, Ellersieck MR, Ellsbury MM (2003) Post-establishment movement of western corn rootworm larvae (Coleoptera: Chrysomelidae) in Central Missouri corn. J Econ Entomol 96:599–608
Hibbard BE, Higdon ML, Duran DP, Schweikert YM, Ellersieck MR (2004) Role of egg density on establishment and plant-to-plant movement by western corn rootworm larvae (Coleoptera: Chrysomelidae). J Econ Entomol 97:871–882
Hibbard BE, Vaughn TT, Oyediran IO, Clark TL, Ellersieck MR (2005) Effect of Cry3Bbl-expressing transgenic corn on plant-to-plant movement by western corn rootworm larvae (Coleoptera: Chrysomelidae). J Econ Entomol 98:1126–1138
Hinton HE (1981) Biology of insect eggs, volumes I, II, III. Pergamon, Oxford
Hu Y (2008) Dispersal and mating system of European corn borer, Ostrinia nubilalis (Hübner) [Lepidoptera: Crambidae], in relation to Bt resistance management. University of Minnesota, Twin Cities
Huang FN, Leonard BR, Andow DA (2007) Sugarcane borer (Lepidoptera: Crambidae) resistance to transgenic Bacillus thuringiensis maize. J Econ Entomol 100:164–171
Hunt TE, Higley LG, Witkowski JF, Young LJ, Hellmich RL (2001) Dispersal of adult European corn borer (Lepidoptera: Crambidae) within and proximal to irrigated and non-irrigated corn. J Econ Entomol 94:1369–1377
Hurley TM, Babcock BA, Hellmich RL (2001) Bt corn and insect resistance: an economic assessment of refuges. J Agric Resour Econ 26:176–194
Hutchison WD, Burkness EC, Mitchell PD, Moon RD, Leslie TW, Fleischer SJ, Abrahamson M, Hamilton KL, Steffey KL, Gray ME, Hellmich RL, Kaster LV, Hunt TE, Wright RJ, Pecinovsky K, Rabaey TL, Flood BR, Raun ES (2010) Areawide suppression of European corn borer with Bt maize reaps savings to non-Bt maize growers. Science 330:222–225
IPGRI (2004) Final report on technical issues associated with the development of CGIAR policies to address the possibility of adventitious presence of transgenes in CGIAR ex situ collections. International Plant Genetic Resources Institute, Rome
Ives AR, Andow DA (2002) Evolution of resistance to Bt crops: directional selection in structured environments. Ecol Lett 5:792–801
Ives AR, Glaum PR, Ziebarth NL, Andow DA (2011) The evolution of resistance to two-toxin pyramid transgenic crops. Ecol Appl (in press)
James C, Brief 41: Global Status of Commercialized Biotech/GM Crops (2009) International service for the acquisition of agri-biotech applications, 2009
Kim KS, Bagley MJ, Coates BS, Hellmich RL, Sappington TW (2009) Spatial and temporal genetic analyses show high gene flow among European corn borer (Lepidoptera: Crambidae) populations across the central US corn belt. Environ Entomol 38:1312–1323
Kruger M, Van Rensburg JBJ, Van den Berg J (2009) Perspective on the development of stem borer resistance to Bt maize and refuge compliance at the Vaalharts irrigation scheme in South Africa. Crop Prot 28:684–689
Lamkey K (2004) Seed production in corn and soybean. In: Andow DA (ed) A growing concern: protecting the food supply in an era of pharmaceutical and industrial crops. Union of Concerned Scientists, Boston, pp 54–74
Liu YB, Tabashnik BE, Dennehy TJ, Patin AL, Sims MA, Meyer SK, Carriere Y (2001) Effects of Bt cotton and Cry1Ac toxin on survival and development of pink bollworm (Lepidoptera: Gelechiidae). J Econ Entomol 94:1237–1242
Mallet J, Porter P (1992) Preventing insect adaptation to insect-resistant crops: are seed mixtures or refugia the best strategy? Proc R Soc Lond B 250:165–169
Mellon M, Rissler J (2004) Gone to seed: transgenic contaminants in the traditional seed supply. Union of Concerned Scientists, Cambridge
Muhammed L, Underwood E (2004) The maize agricultural context in Kenya. In: Hilbeck A, Andow DA (eds) Environmental risk assessment of transgenic organisms: a case study of Bt Maize in Kenya. CABI, Wallingford, pp 21–56
Nieswander CR, Huber LL (1929) Height and silking as factors influencing European corn borer population. Ann Entomol Soc Am 22:527–542
Onstad DW (2006) Modeling larval survival and movement to evaluate seed mixtures of transgenic corn for control of western corn rootworm (Coleoptera: Chrysomelidae). J Econ Entomol 99:1407–1414
Onstad DW, Gould F (1998) Modeling the dynamics of adaptation to transgenic maize by European corn borer (Lepidoptera: Pyralidae). J Econ Entomol 91:585–593
Parker CD, Luttrell RG (1999) Interplant movement of Heliothis virescens (Lepidoptera: Noctuidae) larvae in pure and mixed plantings of cotton with and without expression of the Cry1Ac delta-endotoxin protein of Bacillus thuringiensis Berliner. J Econ Entomol 92:837–845
Peck S, Gould F, Ellner S (1999) Spread of resistance in spatially extended regions of transgenic cotton: implications for management of Heliothis virescens (Lepidoptera: Noctuidae). J Econ Entomol 92:1–16
Ross SE, Ostlie KR (1990) Dispersal and survival of early instars of European corn borer (Lepidoptera: Pyralidae) in field corn. J Econ Entomol 83:831–836
Roush RT, McKenzie JA (1987) Ecological genetics of insecticide and acaride resistance. Annu Rev Entomol 32:361–380
Sisterson MS (2005) Evolution of resistance to transgenic crops: interactions between insect movement and field distribution. J Econ Entomol 98:1751–1762
Tabashnik BE (1994a) Delaying insect adaptation to transgenic plants—seed mixtures and refugia reconsidered. Proc R Soc Lond B Biol Sci 255:7–12
Tabashnik BE (1994b) Evolution of resistance to Bacillus thuringiensis. Annu Rev Entomol 39:47–79
Tabashnik BE, Carrière Y (2007) Evolution of insect resistance to transgenic plants. In: Tilmon KJ (ed) Specialization, speciation, and radiation: the evolutionary biology of herbivorous insects. University of California Press, Berkeley, pp 267–279
Tabashnik BE, Croft BA (1982) Managing pesticide resistance in crop-arthropod complexes: interactions between biological and operational factors. Environ Entomol 11:1137–1144
Tabashnik BE, Gassmann AJ, Crowder DW, Carrière Y (2008) Insect resistance to Bt crops: evidence versus theory. Nat Biotechnol 26:199–202
United States Environmental Protection Agency (2001) Biopesticides registration action document: Bacillus thuringiensis (Bt) plant incorporated protectants. In: Office of Pesticide Programs B, and Pollution Prevention Division, (ed). Environmental Protection Agency
Vermij P (2006) Liberty link rice raises specter of tightened regulations. Nat Biotechnol 24:1301–1302
Wu HH, Wu KM, Wang DY, Guo YY (2006) Flight potential of pink bollworm, Pectinophora gossypiella Saunders (Lepidoptera: Gelechiidae). Environ Entomol 35:887–893
Wu KM, Lu YH, Feng HQ, Jiang YY, Zhao JZ (2008) Suppression of cotton bollworm in multiple crops in china in areas with Bt toxin-containing cotton. Science 321:1676–1678
Xu Z, Liu F, Chen J, Huang F, Andow DA, Shen J, Zhu YC (2009) Using an F2 screen to monitor resistance allele frequency to Bt cotton in field populations of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). Pest Manage Sci 65:391–397
Acknowledgments
P. R. Glaum was funded in part by a United States-National Science Foundation Interdisciplinary Training for Undergraduates in Biological and Mathematical Sciences grant to A. R. Ives and P. A. Milewski (UW-Madison). We also thank the United States Department of Agriculture-IFAFS (2001-52100-11216 and 2007-02244) for additional support.
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Glaum, P.R., Ives, A.R. & Andow, D.A. Contamination and management of resistance evolution to high-dose transgenic insecticidal crops. Theor Ecol 5, 195–209 (2012). https://doi.org/10.1007/s12080-010-0109-6
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DOI: https://doi.org/10.1007/s12080-010-0109-6