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  Multiple recombination events between two cytochrome P450 loci contribute to global pyrethroid resistance in Helicoverpa armigera

Walsh, T. K., Joussen, N., Tian, K., McGaughran, A., Anderson, C. J., Qiu, X., et al. (2018). Multiple recombination events between two cytochrome P450 loci contribute to global pyrethroid resistance in Helicoverpa armigera. PLoS One, 13(11): e0197760. doi:10.1371/journal.pone.0197760.

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http://dx.doi.org/10.1371/journal.pone.0197760 (Publisher version)
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Walsh, Thomas K., Author
Joussen, Nicole1, Author              
Tian, Kai, Author
McGaughran, Angela, Author
Anderson, Craig J., Author
Qiu, Xinghui, Author
Ahn, Seung-Joon, Author
Bird, Lisa, Author
Pavlidi, Nena, Author
Vontas, John, Author
Ryu, Jaeeun, Author
Rasool, Akhtar, Author
Macedo, Isabella Barony, Author
Tay, Wee Tek, Author
Zhang, Yongjun, Author
Whitehouse, Mary E. A., Author
Silvie, Pierre Jean, Author
Downes, Sharon, Author
Nemec, Lori, Author
Heckel, David G.1, Author              
Affiliations:
1Department of Entomology, Prof. D. G. Heckel, MPI for Chemical Ecology, Max Planck Society, ou_421895              

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 Abstract: The cotton bollworm, Helicoverpa armigera (Hu¨bner) is one of the most serious insect pest species to evolve resistance against many insecticides from different chemical classes. This species has evolved resistance to the pyrethroid insecticides across its native range and is becoming a truly global pest after establishing in South America and having been recently recorded in North America. A chimeric cytochrome P450 gene, CYP337B3, has been identified as a resistance mechanism for resistance to fenvalerate and cypermethrin. Here we show that this resistance mechanism is common around the world with at least eight different alleles. It is present in South America and has probably introgressed into its closely related native sibling species, Helicoverpa zea. The different alleles of CYP337B3 are likely to have arisen independently in different geographic locations from selection on existing diversity. The alleles found in Brazil are those most commonly found in Asia, suggesting a potential origin for the incursion of H. armigera into the Americas.

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 Dates: 2018-08-102018-11-01
 Publication Status: Published online
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 Identifiers: Other: HEC426
DOI: 10.1371/journal.pone.0197760
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Title: PLoS One
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Science
Pages: - Volume / Issue: 13 (11) Sequence Number: e0197760 Start / End Page: - Identifier: ISSN: 1932-6203
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000277850