ArticlePlanta2014
No fitness cost of glyphosate resistance endowed by massive EPSPS gene amplification in Amaranthus palmeri.
Article in Planta, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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Who cites it
34 citing papers in PubMed, 124 citations in OpenAlex.
- Thirty years of glyphosate-resistant crops and weeds: Current situation and future prospects.Pest management science · 2026Review
- A class II 5-enolpyruvylshikimate-3-phosphate synthase fromaBIOTECH · 2026Article
- Genome-Wide Characterization and Functional Analysis ofPlants (Basel, Switzerland) · 2025Article
- MurA-catalyzed synthesis of 5-enolpyruvylshikimate-3-phosphate confers glyphosate tolerance in bryophytes.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Phytochemical Cue for the Fitness Costs of Herbicide-Resistant Weeds.Plants (Basel, Switzerland) · 2023Article
- Unravelling the Phytotoxic Effects of Glyphosate on Sensitive and ResistantPlants (Basel, Switzerland) · 2023Article
- Fitness Cost Associated With EnhancedFrontiers in plant science · 2021Article
- Vegetative and Fecundity Fitness Benefit Found in a Glyphosate-ResistantFrontiers in plant science · 2021Article
- Evolution of Glyphosate-Resistant Weeds.Reviews of environmental contamination and toxicology · 2021Review
- Modeling the Population Dynamics and Management of Italian Ryegrass under Two Climatic Scenarios in Brazil.Plants (Basel, Switzerland) · 2020Article
- Homogeneity among glyphosate-resistant Amaranthus palmeri in geographically distant locations.PloS one · 2020Article
- Increased Glyphosate-Induced Gene Expression in the Shikimate Pathway Is Abolished in the Presence of Aromatic Amino Acids and Mimicked by Shikimate.Frontiers in plant science · 2020Article
- Physiological performance of glyphosate and imazamox mixtures on Amaranthus palmeri sensitive and resistant to glyphosate.Scientific reports · 2019Article
- No evidence for early fitness penalty in glyphosate-resistant biotypes ofEcology and evolution · 2019Article
- The Draft Genome of Kochia scoparia and the Mechanism of Glyphosate Resistance via Transposon-Mediated EPSPS Tandem Gene Duplication.Genome biology and evolution · 2019Article
- Comprehensive evaluation of fluroxypyr herbicide on physiological parameters of spring hybrid millet.PeerJ · 2019Article
- Overexpressing Exogenous 5-Enolpyruvylshikimate-3-Phosphate Synthase (EPSPS) Genes Increases Fecundity and Auxin Content of Transgenic Arabidopsis Plants.Frontiers in plant science · 2018Article
- Genetically engineered rice endogenous 5-enolpyruvoylshikimate-3-phosphate synthase (epsps) transgene alters phenology and fitness of crop-wild hybrid offspring.Scientific reports · 2017Article
- Simulating changes in cropping practises in conventional and glyphosate-tolerant maize. I. Effects on weeds.Environmental science and pollution research international · 2017Article
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Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Amplification of the EPSPS gene has been previously identified as the glyphosate resistance mechanism in many populations of Amaranthus palmeri, a major weed pest in US agriculture. Here, we evaluate the effects of EPSPS gene amplification on both the level of glyphosate resistance and fitness cost of resistance. A. palmeri individuals resistant to glyphosate by expressing a wide range of EPSPS gene copy numbers were evaluated under competitive conditions in the presence or absence of glyphosate. Survival rates to glyphosate and fitness traits of plants under intra-specific competition were assessed. Plants with higher amplification of the EPSPS gene (53-fold) showed high levels of glyphosate resistance, whereas less amplification of the EPSPS gene (21-fold) endowed a lower level of glyphosate resistance. Without glyphosate but under competitive conditions, plants exhibiting up to 76-fold EPSPS gene amplification exhibited similar height, and biomass allocation to vegetative and reproductive organs, compared to glyphosate susceptible A. palmeri plants with no amplification of the EPSPS gene. Both the additive effects of EPSPS gene amplification on the level of glyphosate resistance and the lack of associated fitness costs are key factors contributing to EPSPS gene amplification as a widespread and important glyphosate resistance mechanism likely to become much more evident in weed plant species.
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