Evolution of Glyphosate-Resistant Weeds

Baek, Yousoon; Bobadilla, Lucas K.; Giacomini, Darci A.; Montgomery, Jacob S.; Murphy, Brent P; Tranel, Patrick J.

doi:10.1007/398_2020_55

Cited by 25 publications

(24 citation statements)

References 198 publications

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“…Traits of weeds associated with competition that are stimulated by low doses of herbicides may cause changes in the weed population at the ecosystem scale, and these effects reinforce the importance of diversity in weed control practices because exclusive reliance on glyphosate can exert strong selection pressure that results in the evolution of resistant biotypes. 59 Mollaee et al 16 evaluated glyphosate hormesis in glyphosatesusceptible and -resistant Echinochloa colona biotypes, in two types of soil moisture (with adequate water and lack of water). They noted that the glyphosate-resistant biotype had a 16% and 64% increase in the number of inflorescences and seeds produced, respectively, at the 5 g ha −1 glyphosate treatment under adequately-watered conditions, and 8% and 39% under waterstressed conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Changes in flowering speed, timing flowering peaks and greater seed mass and germination directly affect the adaptability of these plants. Traits of weeds associated with competition that are stimulated by low doses of herbicides may cause changes in the weed population at the ecosystem scale, and these effects reinforce the importance of diversity in weed control practices because exclusive reliance on glyphosate can exert strong selection pressure that results in the evolution of resistant biotypes 59 …”

Section: Discussionmentioning

confidence: 99%

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Effect of low glyphosate doses on flowering and seed germination of glyphosate‐resistant and ‐susceptible Digitaria insularis

Anunciato

Bianchi

Gomes

et al. 2021

Pest Management Science

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BACKGROUND: Herbicide hormesis is characterized by stimulation of various growth and developmental parameters, such as biomass and height, at low herbicide doses. Other possible hormetic effects are earlier flowering, higher seed weight, more seeds, and a shorter plant life cycle, which could favor the propagation of the species. This study tested the early flowering in glyphosate-resistant and -susceptible Digitaria insularis biotypes under treatment with low glyphosate doses. RESULTS: Hormesis caused by low glyphosate doses occurred in all experiments. The hormetic effects were a decrease in time necessary for the formation of inflorescences and increased seed weight and germination speed. Higher glyphosate doses were required for the hormetic effect in the glyphosate-resistant than the -susceptible D. insularis biotype. CONCLUSIONS: Hormesis caused by low glyphosate doses in D. insularis may provide an advantage for the dissemination of this species, helping to alter the weed flora. As the doses that cause stimulation in glyphosate-resistant biotypes are higher than in glyphosate-susceptible biotypes, the selection of resistant biotypes may be favored in glyphosate-sprayed fields, increasing the rate of infestation of glyphosate-resistant biotypes.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of low glyphosate doses on flowering and seed germination of glyphosate‐resistant and ‐susceptible Digitaria insularis

Anunciato

Bianchi

Gomes

et al. 2021

Pest Management Science

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“…However, due to the enormous selection pressure over decades there is a rapidly growing number of species with evolved resistance and more mechanisms of evolved resistance than for any other herbicide. 78 A glyphosate-resistant Aspergillus oryzae was isolated from sludge near a glyphosate production plant. 79 The mechanism of resistance was not determined from this apparently evolved case of glyphosate resistance in a fungus.…”

Section: Found In Fungi That Are Not Commercial Fungicide Targetsmentioning

confidence: 99%

“…Despite the heavy use of glyphosate, it took more than 20 years for glyphosate-resistant weeds to evolve after the introduction of glyphosate as a herbicide in 1974. However, due to the enormous selection pressure over decades there is a rapidly growing number of species with evolved resistance and more mechanisms of evolved resistance than for any other herbicide …”

Section: Target Sites Of Commercial Herbicides Found In Fungi That Ar...mentioning

confidence: 99%

Molecular Targets of Herbicides and Fungicides─Are There Useful Overlaps for Fungicide Discovery?

Duke,

Pan,

Bajsa-Hirschel

et al. 2023

J. Agric. Food Chem.

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“…These genes modulate the timing of flowering and their increase in copy number is associated with altered expression ( Díaz et al, 2012 ). Furthermore, an increase in EPSPS gene copy number confers resistance to the herbicide glyphosate in different weed species ( Gaines et al, 2010 ; Baek et al, 2021 ). Similarly, triplication of a gene associated with aluminum tolerance in some maize lines correlates with increased expression, which confers higher tolerance to aluminum in maize grown on acidic soils ( Maron et al, 2013 ).…”

Section: Impact On Evolutionmentioning

confidence: 99%

Recent advances and current challenges in population genomics of structural variation in animals and plants

Pokrovac

Pezer

2022

Front. Genet.

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The field of population genomics has seen a surge of studies on genomic structural variation over the past two decades. These studies witnessed that structural variation is taxonomically ubiquitous and represent a dominant form of genetic variation within species. Recent advances in technology, especially the development of long-read sequencing platforms, have enabled the discovery of structural variants (SVs) in previously inaccessible genomic regions which unlocked additional structural variation for population studies and revealed that more SVs contribute to evolution than previously perceived. An increasing number of studies suggest that SVs of all types and sizes may have a large effect on phenotype and consequently major impact on rapid adaptation, population divergence, and speciation. However, the functional effect of the vast majority of SVs is unknown and the field generally lacks evidence on the phenotypic consequences of most SVs that are suggested to have adaptive potential. Non-human genomes are heavily under-represented in population-scale studies of SVs. We argue that more research on other species is needed to objectively estimate the contribution of SVs to evolution. We discuss technical challenges associated with SV detection and outline the most recent advances towards more representative reference genomes, which opens a new era in population-scale studies of structural variation.

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Evolution of Glyphosate-Resistant Weeds

Cited by 25 publications

References 198 publications

Effect of low glyphosate doses on flowering and seed germination of glyphosate‐resistant and ‐susceptible Digitaria insularis

Effect of low glyphosate doses on flowering and seed germination of glyphosate‐resistant and ‐susceptible Digitaria insularis

Molecular Targets of Herbicides and Fungicides─Are There Useful Overlaps for Fungicide Discovery?

Recent advances and current challenges in population genomics of structural variation in animals and plants

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