ArticleScientific reports2022
Large genomic deletion linked to field-evolved resistance to Cry1F corn in fall armyworm (Spodoptera frugiperda) from Florida.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Inheritance and fitness of field-evolved Cry1Fa-resistant Ostrinia nubilalis (Lepidoptera: Crambidae) under laboratory conditions.Journal of economic entomology · 2026Article
- Evaluation of GS-omega/kappa-Hxtx-Hv1a and Bt toxins against Bt-resistant and -susceptible strains of Helicoverpa zea (Boddie) and Spodoptera frugiperda (J.E. Smith).Pest management science · 2025Article
- Mismatch between lab-generated and field-evolved resistance to transgenic Bt crops inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Strategic Analysis of Collaborative Networks in Spodoptera frugiperda (Lepidoptera: Noctuidae) Research for Improved Pest Management Strategies.Neotropical entomology · 2024Review
- Exposure to Cry1 Toxins Increases Long Flight Tendency in Susceptible but Not in Cry1F-Resistant FemaleInsects · 2023Article
- Genetic mutations linked to field-evolved Cry1Fa-resistance in the European corn borer, Ostrinia nubilalis.Scientific reports · 2023Article
- Fitness Costs and Incomplete Resistance Associated with Delayed Evolution of Practical Resistance to Bt Crops.Insects · 2023Review
- Review
- eCry1Gb.1Ig, A Novel Chimeric Cry Protein with High Efficacy against Multiple Fall Armyworm (Toxins · 2022Article
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The fall armyworm (Spodoptera frugiperda) is a highly polyphagous lepidopteran pest of relevant food and fiber staple crops. In the Americas, transgenic corn and cotton producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) have controlled and reduced the damage caused by S. frugiperda. However, cases of field-evolved S. frugiperda resistance to Bt corn producing the Cry1F insecticidal protein have been documented in North and South America. When characterized, field resistance to Cry1F is linked to insertions and mutations resulting in a modified or truncated ABC transporter subfamily C2 (SfABCC2) protein that serves as Cry1F receptor in susceptible S. frugiperda. In this work, we present detection of a large genomic deletion (~ 8 kb) affecting the SfABCC2 and an ABC transporter gene subfamily 3 -like gene (SfABCC3) as linked to resistance to Cry1F corn in a S. frugiperda strain from Florida (FL39). Monitoring for this genomic deletion using a discriminatory PCR reaction in field-collected S. frugiperda moths detected individuals carrying this allele in Florida, but not in surrounding states. This is the first report of a large genomic deletion being involved in resistance to a Bt insecticidal protein.
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