Multiple Herbicide Resistance Evolution: The Case of <i>Eleusine indica</i> in Brazil

Vázquez-García, José G.; Cruz, Ricardo Alcántara‐de la; Rojano-Delgado, Antonia M.; Palma-Bautista, Candelario; Vasconcelos, João M de Portugal

doi:10.1021/acs.jafc.0c03999

Cited by 13 publications

(8 citation statements)

References 51 publications

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“…Moreover, additional mutations in this sequence were not found, with position 102 occupied by threonine (codon ACT), which also makes weeds resistant to glyphosate. It confirms that the mechanism of resistance of this population from Primavera do Leste, MT, Brazil, does not involve changes in the 300-bp EPSPS fragment, which encompasses the positions 102 and 106, in contrast to the other two E. indica populations in Brazil that had a SNP mutation at position 106 (Pro-106-Ser) conferring resistance to glyphosate (Takano et al 2018; Vázquez-García et al 2021).…”

Section: Resultssupporting

confidence: 71%

Goosegrass (Eleusine indica) resistant to multiple herbicide modes of action in Brazil

Araújo¹,

Correia

Tornisielo³

et al. 2023

Weed Sci

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This study was developed based on a goosegrass (Eleusine indica (L.) Gaertn) population with resistance to multiple modes of action of herbicides (EPSPs inhibition - glyphosate; and ACCase inhibition - aryloxyphenoxypropionate chemical group), from Primavera do Leste, MT, Brazil. The objective was to identify possible mechanisms of resistance associated or not to sites of action of herbicides. Several experiments and analyses were carried out with the contribution of different laboratories and institutions. The results obtained allowed to conclude that: (i) the mutation Asp2078Gly conferred resistance to ACCase inhibitors, without overexpression of ACCase or changes in herbicide absorption and translocation; (ii) overexpression of EPSPs, mutations Thr102 and P106, and changes in absorption and translocation are not involved in the E. indica resistance to glyphosate; (iii) the metabolism of glyphosate in resistant E. indica plants requires further studies to elucidate the herbicide final destination in these plants. The mechanism of resistance of E. indica biotypes to ACCase-inhibiting herbicides was elucidated: it involves a change in the action site. However, the mechanism of resistance to EPSPs-inhibiting was not conclusive, denoting that some hypotheses should be tested, mainly regarding the metabolism of glyphosate in resistant plants.

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Section: Resultssupporting

confidence: 71%

Goosegrass (Eleusine indica) resistant to multiple herbicide modes of action in Brazil

Araújo¹,

Correia

Tornisielo³

et al. 2023

Weed Sci

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“…Eleusine indica is a highly invasive and adaptive global agriculture weed 1 with evolution of resistance to multiple herbicides 2–5 . E. indica is widely distributed in southern China especially in Guangdong Province, where it can flourish for up to 2–3 generations a year and is the worst weed in both farm and non‐farm situations.…”

Section: Introductionmentioning

confidence: 99%

Evolution of multiple target‐site resistance mechanisms in individual plants of glyphosate‐resistant Eleusine indica from China

Chun

et al. 2021

Pest Management Science

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BACKGROUND Glyphosate has been used for weed control in South China in various situations for four decades, and most Eleusine indica populations are suspected to have evolved resistance to glyphosate. This research investigated underling target‐site glyphosate resistance mechanisms in six field‐collected, putative glyphosate‐resistant (R) E. indica populations. RESULTS The six R E. indica populations were confirmed to be low (1.8 to 2.6‐fold) to moderately (5.6‐ to 8.4‐fold) resistant to glyphosate relative to the susceptible (S) population. Sixty‐seven glyphosate‐surviving plants from the six R populations were used to examine target‐site resistance mechanisms. Target‐site 5‐enolpyruvylshikimate3‐phosphate synthase (EPSPS) overexpression (OE) (plus further induction by glyphosate treatment) and gene copy number variation (CNV) occurred in 94% R plants, and among them, 16% had the P106A mutation and 49% had the heterozygous double TIPS (T102I + P106S) mutation (plus P381L). In addition, a low number of R plants (6%) only had the homologous TIPS (plus P381L) mutation. The (CT)6 insertion mutation in the EPSPS 5†‐UTR always associates with EPSPS OE and CNV. Progeny plants possessing EPSPS OE/CNV (and P106A) displayed low level (up to 4.5‐fold) glyphosate resistance. In contrast, plants homozygous for the TIPS mutation displayed higher (25‐fold) resistance to glyphosate and followed by plants heterozygous for this mutation plus EPSPS OE/CNV (12‐fold). CONCLUSIONS Target‐site glyphosate resistance in E. indica populations from South China is common with prevalence of EPSPS OE/induction/CNV conferring low level resistance. Individual plants acquiring both the TIPS mutation and EPSPS OE/CNV are favored due to evolutionary advantages. The role of (CT)6 insertion mutation in EPSPS CNV is worth further investigation. © 2021 Society of Chemical Industry.

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“…A espécie Eleusine indica (péde-galinha), encontrada em diferentes regiões agrícolas do mundo, inclusive na área experimental do presente trabalho, tem registros de casos de resistência a partir do ano de 2003 em cultivos de soja, milho, trigo, feijão e algodão no Brasil e em áreas de soja, milho e pousio na Argentina. Desde 2003 até o presente momento, foram registrados 37 casos no mundo, sendo três no Brasil (em 2003, 2016 e 2017) em relação aos herbicidas cyhalofop, fenoxaprop, sethoxydim, glyphosate e haloxyfop (VÁZQUEZ-GARCÍA et al, 2021;WEEDSCIENCE, 2021).…”

Section: Fonte: Autores (2021)unclassified

Composição Florística E Distribuição Espacial De Plantas Daninhas Em Pré-Semeadura De Soja Em Uberlândia - Mg

Canuto¹,

Canuto²

2021

Enci Bio

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trabalho licenciado sob licença Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. RESUMOConsideradas como plantas indesejadas nos sistemas de produção de soja, as plantas daninhas causam prejuízos à produtividade de grãos em função da competição pelos recursos essenciais como água, luz, nutrientes e espaço. Devido aos danos que podem causar, as plantas infestantes devem ser criteriosamente identificadas e quantificadas para a definição das estratégias que constituirão o manejo integrado de plantas daninhas. Portanto, este trabalho apresentou como objetivo o levantamento da composição florística e da distribuição espacial de plantas daninhas em área experimental do IFTM Campus Uberlândia (Uberlândia-MG), especificamente em pré-semeadura da cultura da soja. A amostragem das plantas daninhas foi realizada por meio do método do quadrado inventário, com o lançamento do quadrado (0,5 m x 0,5 m) em 20 pontos aleatórios da área experimental. Em cada ponto amostral, as plantas daninhas foram identificadas e quantificadas para a posterior análise da composição florística e da fitossociologia. As características avaliadas foram: frequência, densidade e abundância (absolutas e relativas) e índice de valor de importância. As famílias com maior representatividade no local foram Poaceae e Amaranthaceae, com 3 espécies cada. Entretanto, a família Cyperaceae, por apresentar a espécie Cyperus rotundus com maior índice de valor de importância (IVI), se destacou na área experimental. Esta espécie, juntamente com outras duas espécies da família Poaceae (Digitaria horizontalis e Eleusine indica) apresentaram os maiores valores dos índices fitossociológicos, inclusive do IVI, e devem ser priorizadas quanto à definição do programa de manejo integrado de plantas daninhas em pré-semeadura de soja.

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Multiple Herbicide Resistance Evolution: The Case of Eleusine indica in Brazil

Cited by 13 publications

References 51 publications

Goosegrass (Eleusine indica) resistant to multiple herbicide modes of action in Brazil

Goosegrass (Eleusine indica) resistant to multiple herbicide modes of action in Brazil

Evolution of multiple target‐site resistance mechanisms in individual plants of glyphosate‐resistant Eleusine indica from China

Composição Florística E Distribuição Espacial De Plantas Daninhas Em Pré-Semeadura De Soja Em Uberlândia - Mg

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