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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

here is more than chitin synthase in insect resistance to benzoylureas: molecular markers associated with teflubenzuron resistance in Spodoptera frugiperd

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Bezerra do Nascimento, Antonio Rogerio [1] ; Pavinato, Vitor Antonio Correa [2] ; Rodrigues, Juliana Gonzales [1] ; Silva-Brandao, Karina Lucas [3] ; Consoli, Fernando Luis [1] ; Michel, Andrew [2] ; Omoto, Celso [1]
Total Authors: 7
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Entomol & Acarol, Piracicaba, SP - Brazil
[2] Ohio State Univ, Dept Entomol, Wooster, OH - USA
[3] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Santo Andre, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF PEST SCIENCE; v. 95, n. 1, p. 129-144, JAN 2022.
Web of Science Citations: 0

Chitin synthesis inhibitors are successfully used in pest control and an excellent option for integrated pest management programs due to their low non-target effects. However, field-evolved resistance of lepidopteran pests to chitin synthesis inhibitors and the selection of laboratory-resistant strains to these products has been already reported. Therefore, to support efficient resistance management programs it is necessary to expand the knowledge on the resistance mechanisms and potential molecular markers that detect resistant alleles. Teflubenzuron is a chitin synthesis inhibitor used to control the world widely distributed fall armyworm, Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae). Here, we report the selection and inheritance characterization of S. frugiperda strain resistant to teflubenzuron. We also evaluated the cross-resistance to other chitin-synthesis inhibitors and identified single nucleotide polymorphisms (SNPs), which can be used as molecular markers for monitoring the evolution of resistance of S. frugiperda to teflubenzuron. The resistance of the selected strain of S. frugiperda to teflubenzuron was characterized as polygenic, autosomal, and incompletely recessive. The resistance ratio observed was nearly 1,365-fold. Teflubenzuron-resistant strain showed cross-resistance to lufenuron and novaluron, but not to chlorfluazuron. We also detected a set of 72 SNPs that could support monitoring of the resistance frequency to teflubenzuron in field populations. Our data contribute to the understanding of the resistance mechanisms and the inheritance of resistance of S. frugiperda to benzoylureas. We also contribute with candidate markers as tools for monitoring the emergence and spread of teflubenzuron resistance in S. frugiperda. (AU)

FAPESP's process: 14/26212-7 - Exploration of next generation sequencing techniques (NGS) for the identification of molecular markers for monitoring the resistance of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) to insecticides and Bt proteins
Grantee:Antonio Rogério Bezerra do Nascimento
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 12/16266-7 - Population genomics: a new approach for studies of speciation in insects due to host use applied to the development of sustainable strategies of IPM
Grantee:Karina Lucas da Silva-Brandão
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 16/09159-0 - Mapping and quantitative trait locus (QTLs) associated with resistance to insecticides and Bt toxin in Spodoptera frugiperda (J. e. Smith)
Grantee:Antonio Rogério Bezerra do Nascimento
Support type: Scholarships abroad - Research Internship - Doctorate