ArticleScientific reports2019
Multiple incursion pathways for Helicoverpa armigera in Brazil show its genetic diversity spreading in a connected world.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 44 citations in OpenAlex.
- Mapping the global threat of Mythimna separata (Walker) and its economic implications for Brazil's agriculture.Pest management science · 2026Article
- Gene expression analysis of PvDGK genes in response to Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), wounding and methyl jasmonate treatments in common bean.Molecular biology reports · 2025Article
- Article
- Anatomy of a pest control failure: introgression of cytochrome P450 337B3 alleles from invasive old-world bollworm into native corn earworm (Lepidoptera: Noctuidae).Journal of insect science (Online) · 2024Article
- Accurate identification ofFrontiers in insect science · 2024Article
- Complex multiple introductions drive fall armyworm invasions into Asia and Australia.Scientific reports · 2023Article
- Genetic diversity and demographic history of the Old World Bollworm,Ecology and evolution · 2022Article
- Global population genomic signature of Spodoptera frugiperda (fall armyworm) supports complex introduction events across the Old World.Communications biology · 2022Article
- Article
- Adaptive Introgression across Semipermeable Species Boundaries between Local Helicoverpa zea and Invasive Helicoverpa armigera Moths.Molecular biology and evolution · 2020Article
- Oxidative stress delays development and alters gene expression in the agricultural pest moth,Ecology and evolution · 2020Article
- One maternal lineage leads the expansion of Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) in the New and Old Worlds.Scientific reports · 2020Article
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Authors and funding
7 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Old World cotton bollworm Helicoverpa armigera was first detected in Brazil with subsequent reports from Paraguay, Argentina, Bolivia, and Uruguay. This pattern suggests that the H. armigera spread across the South American continent following incursions into northern/central Brazil, however, this hypothesis has not been tested. Here we compare northern and central Brazilian H. armigera mtDNA COI haplotypes with those from southern Brazil, Uruguay, Argentina, and Paraguay. We infer spatial genetic and gene flow patterns of this dispersive pest in the agricultural landscape of South America. We show that the spatial distribution of H. armigera mtDNA haplotypes and its inferred gene flow patterns in the southwestern region of South America exhibited signatures inconsistent with a single incursion hypothesis. Simulations on spatial distribution patterns show that the detection of rare and/or the absence of dominant mtDNA haplotypes in southern H. armigera populations are inconsistent with genetic signatures observed in northern and central Brazil. Incursions of H. armigera into the New World are therefore likely to have involved independent events in northern/central Brazil, and southern Brazil/Uruguay-Argentina-Paraguay. This study demonstrates the significant biosecurity challenges facing the South American continent, and highlights alternate pathways for introductions of alien species into the New World.
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