ArticlePest management science2025
EPSPS target site mechanisms confer glyphosate resistance in Arctotheca calendula.
Article in Pest management science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Multi-Year Regional-Scale Efficacy Assessment of Two Herbicides for Treatment of Invasive Floating Aquatic Vegetation in a California Estuary.Environmental management · 2026Article
- Thirty years of glyphosate-resistant crops and weeds: Current situation and future prospects.Pest management science · 2026Review
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Authors and funding
6 authors.
Funding
Abstract
backgroundThe first case of glyphosate resistance was reported in a capeweed population from Western Australia in our previous study. This current study investigates the resistance mechanisms in the population.
resultsTarget-site EPSPS gene sequencing revealed two partial sequences of the EPSPS transcripts (1001 bp and 998 bp), and the full-length sequence (1551 bp) containing the 1001-bp transcript was cloned as it was found in the resistant plants. A known resistance-endowing target-site mutation in the 1551-bp transcript was identified in the resistant plants, resulting in the Pro-106-Ser substitution. The subpopulation derived from these mutant plants exhibited >10-fold resistance to glyphosate compared to the susceptible population. Additionally, the EPSPS gene (1551 bp) was constitutively expressed at a higher level (4.3-fold) in the resistant than in the susceptible populations. However,
conclusionGlyphosate resistance in the studied population is associated with both a target-site mutation (Pro-106-Ser) and increased EPSPS gene expression. © 2025 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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