ArticlePlanta2014
Involvement of facultative apomixis in inheritance of EPSPS gene amplification in glyphosate-resistant 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 12 papers.
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Who cites it
12 citing papers in PubMed.
- Engineering apomixis in crops.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Review
- Physiological performance of glyphosate and imazamox mixtures on Amaranthus palmeri sensitive and resistant to glyphosate.Scientific reports · 2019Article
- Molecular basis of natural tolerance to glyphosate in Convolvulus arvensis.Scientific reports · 2019Article
- Different levels of glyphosate-resistant Lolium rigidum L. among major crops in southern Spain and France.Scientific reports · 2017Article
- Interpopulation variability and adaptive potential for reduced glyphosate sensitivity inWeed research · 2017Article
- Effects of EPSPS Copy Number Variation (CNV) and Glyphosate Application on the Aromatic and Branched Chain Amino Acid Synthesis Pathways inFrontiers in plant science · 2017Article
- Article
- Target and Non-target Site Mechanisms Developed by Glyphosate-Resistant Hairy beggarticks (Frontiers in plant science · 2016Article
- First Resistance Mechanisms Characterization in Glyphosate-ResistantFrontiers in plant science · 2016Article
- Article
- Gene amplification of 5-enol-pyruvylshikimate-3-phosphate synthase in glyphosate-resistant Kochia scoparia.Planta · 2015Article
- Glyphosate resistance: state of knowledge.Pest management science · 2014Review
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The inheritance of glyphosate resistance in two Amaranthus palmeri populations (R1 and R2) was examined in reciprocal crosses (RC) and second reciprocal crosses (2RC) between glyphosate-resistant (R) and -susceptible (S) parents of this dioecious species. R populations and Female-R × Male-S crosses contain higher 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) gene copy numbers than the S population. EPSPS expression, EPSPS enzyme activity, EPSPS protein quantity, and level of resistance to glyphosate correlated positively with genomic EPSPS relative copy number. Transfer of resistance was more influenced by the female than the male parent in spite of the fact that the multiple copies of EPSPS are amplified in the nuclear genome. This led us to hypothesize that this perplexing pattern of inheritance may result from apomictic seed production in A. palmeri. We confirmed that reproductively isolated R and S female plants produced seeds, indicating that A. palmeri can produce seeds both sexually and apomictically (facultative apomixis). This apomictic trait accounts for the low copy number inheritance in the Female-S × Male-R offsprings. Apomixis may also enhance the stability of the glyphosate resistance trait in the R populations in the absence of reproductive partners.
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