Dispersal Behavior of Neonate European Corn Borer (Lepidoptera: Crambidae) on Bt Corn

Razze, Janine M.; Mason, Charles E.

doi:10.1603/ec11288

Cited by 41 publications

(50 citation statements)

References 30 publications

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“…This increased proximity in both space and time may facilitate random mating between adults emerging from Bt-maize and refuge plants compared with block refuges (Murphy et al, 2011). However, the advantages of seed blends may be offset by the potential for larval movement between roots of Bt-maize and refuge plants (Hibbard et al, 2003Zukoff et al, 2012;Schumann and Vidal, 2012), and the exposure of later instars to sublethal doses of the toxin (Goldstein et al, 2010;Murphy et al, 2011;Onstad et al, 2011;Razze and Mason, 2012;Zukoff et al, 2012). For Bt-crops that are truly high dose, Mallet and Porter (1992) indicated that the movement of larvae between Bt-crop and refuge plants may lower the selective differential between susceptible and resistant genotypes, and increase the effective dominance of resistance by producing more heterozygote individuals (Glaum et al, 2012;Siegfried and Hellmich, 2012; but see Tabashnik, 1994).…”

Section: Seed Blendsmentioning

confidence: 99%

Scientific Opinion on an application from Pioneer Hi‐Bred International and Dow AgroSciences LLC (EFSA‐GMO‐NL‐2005‐23) for placing on the market of genetically modified maize 59122 for food and feed uses, import, processing and cultivation under Regulation (EC) No 1829/2003

2013

EFS2

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This Scientific Opinion reports on a risk assessment on an application for placing on the market of genetically modified maize 59122 for import and processing for food and feed uses and cultivation. The EFSA GMO Panel considers that maize 59122 is unlikely to have any adverse effect on the environment, except for the possible evolution of resistance to the Cry34Ab1/Cry35Ab1 proteins in coleopteran target pests. The Panel recommends the implementation of appropriate and diversified insect resistance management strategies and case-specific monitoring to delay and monitor the possible evolution of resistance to Cry34Ab1/Cry35Ab1 in coleopteran target pests, respectively. In addition, the Panel recommends revision of the applicants' insect resistance management plan and the proposed post-market environmental monitoring plan. Although maize 59122 is tolerant to glufosinate-ammonium-based herbicides, the Panel did not assess the potential adverse effects associated with the use of such herbicides on maize 59122, as maize 59122 will not be marketed in the European Union as a herbicide-tolerant crop. This Scientific Opinion updates the previous Panel safety evaluation of the food and feed uses, and import and processing of maize 59122 and derived products. The Panel concludes that the information available for maize 59122 addresses the scientific comments raised by Member States and that maize 59122, as described in this application, is as safe as its conventional counterpart and commercial maize varieties with respect to potential adverse effects on human and animal health. If subjected to appropriate management measures, the cultivation of maize 59122 is unlikely to raise safety concerns for the environment.

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Section: Seed Blendsmentioning

confidence: 99%

Scientific Opinion on an application from Pioneer Hi‐Bred International and Dow AgroSciences LLC (EFSA‐GMO‐NL‐2005‐23) for placing on the market of genetically modified maize 59122 for food and feed uses, import, processing and cultivation under Regulation (EC) No 1829/2003

2013

EFS2

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“…Overall, these responses to selection, combined with our gene expression data, suggest that the behavioral trait for plant abandonment is likely to be under genetic control and that the genes foraging and Onslmo are involved. Although other studies have described O. nubilalis behavior on transgenic and nontransgenic plants (Ross and Ostlie 1990, Davis and Coleman 1997, Goldstein et al 2010, Razze et al 2011, Razze and Mason 2012, this is the Þrst study that has speciÞcally selected for these traits over several generations and analyzed behavior genes to elucidate genetic changes.…”

Section: Discussionmentioning

confidence: 99%

“…Genes inßuencing plant abandonment behavior, such as foraging and slowmo, would likely be involved in this process. Other studies have shown neonates disperse more from Bt versus non-Bt plants (Ross and Ostlie 1990, Davis and Coleman 1997, Goldstein et al 2010, Razze et al 2011, Razze and Mason 2012.…”

mentioning

confidence: 95%

On-Plant Selection and Genetic Analysis of European Corn Borer (Lepidoptera: Crambidae) Behavioral Traits: Plant Abandonment Versus Plant Establishment

et al. 2014

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Although some studies have investigated how insect behavior could influence resistance evolution to transgenic plants, none have determined if behavioral traits respond to selection pressure and how they may be inherited. We investigated plant establishment and abandonment traits for the European corn borer, Ostrinia nubilalisi (Hübner) (Lepidoptera: Crambidae), by conducting a laboratory selection experiment and quantifying patterns of gene expression. Egg masses with emerging larvae were placed on maize plants and silking individuals were collected every 15 min during a 4-h period to generate a plant abandonment (PA) colony. Plants were dissected 24-72 h later, and larvae were collected for a plant establishment colony. Selection of the PA colony showed an increased propensity to abandon the host plant by the third generation. The propensity for larvae to establish on the plants, however, did not show a significant response until the sixth generation. Quantitative real-time-polymerase chain reaction (qRT-PCR) was used to determine expression profiles for behavior associated genes (foraging and Onslmo). Egg samples from the two selected colonies and nonselected laboratory colony were collected at 0, 24, 48, 72, and 96 h after egg deposition, and first instars were sampled after exposure to maize tissue. Compared with the plant establishment and nonselected laboratory colonies at the 0-h time period, foraging and Onslmoshowed higher expression in the PA colony. This is the first study that has specifically selected for these traits over several generations and analyzed behavior-associated genes to elucidate genetic changes. RightsWorks produced by employees of the U.S. Government as part of their officials duties are not copyrighted within the U.S. The content of this document is not copyrighted. ABSTRACT Although some studies have investigated how insect behavior could inßuence resistance evolution to transgenic plants, none have determined if behavioral traits respond to selection pressure and how they may be inherited. We investigated plant establishment and abandonment traits for the European corn borer, Ostrinia nubilalisi (Hü bner) (Lepidoptera: Crambidae), by conducting a laboratory selection experiment and quantifying patterns of gene expression. Egg masses with emerging larvae were placed on maize plants and silking individuals were collected every 15 min during a 4-h period to generate a plant abandonment (PA) colony. Plants were dissected 24 Ð72 h later, and larvae were collected for a plant establishment colony. Selection of the PA colony showed an increased propensity to abandon the host plant by the third generation. The propensity for larvae to establish on the plants, however, did not show a signiÞcant response until the sixth generation. Quantitative real-timeÐpolymerase chain reaction (qRT-PCR) was used to determine expression proÞles for behavior associated genes (foraging and Onslmo). Egg samples from the two selected colonies and nonselected laboratory colony were collected at 0, 24...

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“…The physiological response of lepidoptera larvae to toxic or nutritionally inadequate substance found on host plants lead to increase in the movement of larvae looking for better nutritional sources (Cohen et al 1987). Thus, the dispersion of neonate larvae is important to determine how a refuge will be set in a plantation (Razze and Mason 2012). The feeding behavior of larvae includes the ingestion of vegetable tissue in the tasting phase and it is highly influenced by microclimatic conditions.…”

Section: An Acad Bras Cienc (2017) 89 (4) Effects Of Temperature On Tmentioning

confidence: 99%

Effects of temperature on the feeding behavior of Alabama argillacea (Hübner) (Lepidoptera: Noctuidae) on Bt and non-Bt cotton plants

Ramalho

Pachú

Lira

et al. 2017

An. Acad. Bras. Ciênc.

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The host acceptance behavior and environmental factors as temperature affect the feeding behavior of Lepidoptera pests. Thus, they must be considered in studies about the risk potential of resistance evolution. The current study sets the differences in the feeding behavior of neonate Alabama argillacea (Hübner) (Lepidoptera: Noctuidae) larvae exposed to Bt and non-Bt cotton plants, under different temperatures and time gap after hatching. Two cotton cultivars were used: the Bt (DP 404 BG -bollgard) and the nontransformed isoline, DP 4049. We found that the feeding behavior of neonate A. argillacea is significantly different between Bt and non-Bt cotton. Based on the number of larvae with vegetal tissue in their gut found on the plant and in the organza as well as on the amount of vegetal tissue ingested by the larvae. A. argillacea shows feeding preference for non-Bt cotton plants, in comparison to that on the Bt. However, factors such as temperature and exposure time may affect detection capacity and plant abandonment by the larvae and it results in lower ingestion of vegetal tissue. Such results are relevant to handle the resistance of Bt cotton cultivars to A. argillacea and they also enable determining how the cotton seeds mix will be a feasible handling option to hold back resistance evolution in A. argillacea populations on Bt cotton, when it is compared to other refuge strategies. The results can also be useful to determine which refuge distribution of plants is more effective for handling Bt cotton resistance to A. argillacea.

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Dispersal Behavior of Neonate European Corn Borer (Lepidoptera: Crambidae) on Bt Corn

Cited by 41 publications

References 30 publications

Scientific Opinion on an application from Pioneer Hi‐Bred International and Dow AgroSciences LLC (EFSA‐GMO‐NL‐2005‐23) for placing on the market of genetically modified maize 59122 for food and feed uses, import, processing and cultivation under Regulation (EC) No 1829/2003

Scientific Opinion on an application from Pioneer Hi‐Bred International and Dow AgroSciences LLC (EFSA‐GMO‐NL‐2005‐23) for placing on the market of genetically modified maize 59122 for food and feed uses, import, processing and cultivation under Regulation (EC) No 1829/2003

On-Plant Selection and Genetic Analysis of European Corn Borer (Lepidoptera: Crambidae) Behavioral Traits: Plant Abandonment Versus Plant Establishment

Effects of temperature on the feeding behavior of Alabama argillacea (Hübner) (Lepidoptera: Noctuidae) on Bt and non-Bt cotton plants

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