Evidence map›Paper›PMID 32348505›Full record

ArticleMolecular biology and evolution2020

Adaptive Introgression across Semipermeable Species Boundaries between Local Helicoverpa zea and Invasive Helicoverpa armigera Moths.

Wendy A Valencia-Montoya, Samia Elfekih, Henry L North, Joana I Meier, Ian A Warren, Wee Tek Tay, Karl H J Gordon, Alexandre Specht, Silvana V Paula-Moraes, Rahul Rane and 2 more

Abstract read
In one paragraph

Article in Molecular biology and evolution, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Genomic investigations of successful invasions: the picture emerging from recent studies.Biological reviews of the Cambridge Philosophical Society · 2025
    Pooled it
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  5. Populations of the Australian Saltmarsh MosquitoEvolutionary applications · 2025
    Article
  6. Genomic divergence across the tree of life.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Scientists' warning on genetic pollution.Discover conservation · 2025
    Review
  9. Article
  10. Evolution of Sensory Receptors.Annual review of cell and developmental biology · 2024
    Review
  11. Article
  12. Article
  13. Article
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  15. Article
  16. Article
  17. Article
  18. Article
  19. Accurate identification ofFrontiers in insect science · 2024
    Article
  20. Anthropogenic Change and the Process of Speciation.Cold Spring Harbor perspectives in biology · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Wendy A Valencia-MontoyaDepartment of Zoology, University of Cambridge, Cambridge, United Kingdom.
Samia ElfekihCSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, VIC, Australia.
Henry L NorthDepartment of Zoology, University of Cambridge, Cambridge, United Kingdom.
Joana I MeierDepartment of Zoology, University of Cambridge, Cambridge, United Kingdom.
Ian A WarrenDepartment of Zoology, University of Cambridge, Cambridge, United Kingdom.
Wee Tek TayCSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT, Australia.
Karl H J GordonCSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT, Australia.
Alexandre SpechtEmbrapa Cerrados, Planaltina, Federal District, Brazil.
Silvana V Paula-MoraesWest Florida Research and Education Center, University of Florida, Jay, FL.
Rahul RaneCSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, VIC, Australia.
Tom K WalshCSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT, Australia.
Chris D JigginsDepartment of Zoology, University of Cambridge, Cambridge, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hybridization between invasive and native species has raised global concern, given the dramatic increase in species range shifts and pest outbreaks due to anthropogenic dispersal. Nevertheless, secondary contact between sister lineages of local and invasive species provides a natural laboratory to understand the factors that determine introgression and the maintenance or loss of species barriers. Here, we characterize the early evolutionary outcomes following secondary contact between invasive Helicoverpa armigera and native H. zea in Brazil. We carried out whole-genome resequencing of Helicoverpa moths from Brazil in two temporal samples: during the outbreak of H. armigera in 2013 and 2017. There is evidence for a burst of hybridization and widespread introgression from local H. zea into invasive H. armigera coinciding with H. armigera expansion in 2013. However, in H. armigera, the admixture proportion and the length of introgressed blocks were significantly reduced between 2013 and 2017, suggesting selection against admixture. In contrast to the genome-wide pattern, there was striking evidence for adaptive introgression of a single region from the invasive H. armigera into local H. zea, including an insecticide resistance allele that increased in frequency over time. In summary, despite extensive gene flow after secondary contact, the species boundaries are largely maintained except for the single introgressed region containing the insecticide-resistant locus. We document the worst-case scenario for an invasive species, in which there are now two pest species instead of one, and the native species has acquired resistance to pyrethroid insecticides through introgression.

Indexed as

Genetic IntrogressionIntroduced SpeciesAdaptation, BiologicalAnimalsBiological EvolutionGene FlowGenome, InsectInsecticide ResistanceInsecticidesMothsPyrethrinsSympatryInsecticidesPyrethrinsgene flowhybridizationinsecticide resistance evolutioninvasive speciessecondary contact

Identifiers

PMID32348505
PMCPMC7475041

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.