ArticleScientific reports2024
Evolutionary origin and distribution of amino acid mutations associated with resistance to sodium channel modulators in onion thrips, Thrips tabaci.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 8 citations in OpenAlex.
- Mutations M918T, M918L, and L1014F impair pyrethroid binding and alter gating of the Megalurothrips usitatus sodium channel.Pest management science · 2026Article
- Synthetic pyrethroid resistance in Haematobia irritans subsp. exigua (Diptera: Muscidae): knockdown-recovery observed, a new putative resistance-linked mutation detected, and a complete voltage-gated sodium channel gene transcript sequenced.Journal of economic entomology · 2026Article
- Distribution of sodium channel mutations associated with pyrethroid resistance in phytoseiid mite species in vineyards.Journal of pesticide science · 2026Article
- Field survey of reproductive modes and sodium channel mutations associated with pyrethroid resistance inJournal of pesticide science · 2024Article
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Authors and funding
8 authors at 3 institutions in 1 country.
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Abstract
In onion thrips Thrips tabaci, reduced sensitivity of the sodium channel caused by several sodium channel mutations have been correlated with pyrethroid resistance. For this study, using mitochondrial cytochrome c oxidase subunit I gene sequences, we examined the phylogenetic relation among a total of 52 thelytokous and arrhenotokous strains with different genotypes of the sodium channel mutations. Then, we used flow cytometry to estimate their ploidy. Results showed that the strains are divisible into three groups: diploid thelytoky, triploid thelytoky, and diploid arrhenotoky. Using 23 whole genome resequencing data obtained from 20 strains out of 52, we examined their genetic relation further using principal component analysis, admixture analysis, and a fixation index. Results showed that diploid and triploid thelytokous groups are further classifiable into two based on the sodium channel mutations harbored by the respective group members (strains). The greatest genetic divergence was observed between thelytokous and arrhenotokous groups with a pair of T929I and K1774N. Nevertheless, they shared a genomic region with virtually no polymorphism around the sodium channel gene loci, suggesting a hard selective sweep. Based on these findings, we discuss the evolutionary origin and distribution of the sodium channel mutations in T. tabaci.
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