Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate

Abstract Understanding the fate of heterogenous herbicide resistant weed populations in response to management practices can help towards overcoming the resistance issues. We selected one pair of susceptible (S) and resistant (R) phenotypes (2B21-R vs 2B21-S and 2B37-R vs 2B37-S) separately from two...

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Autores principales:	Md Asaduzzaman, Eric Koetz, Hanwen Wu, Michael Hopwood, Adam Shephard
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/095dd2b7016b41309f641b7caea830e5
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spelling	oai:doaj.org-article:095dd2b7016b41309f641b7caea830e52021-12-02T17:56:56ZFate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate10.1038/s41598-021-94370-72045-2322https://doaj.org/article/095dd2b7016b41309f641b7caea830e52021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94370-7https://doaj.org/toc/2045-2322Abstract Understanding the fate of heterogenous herbicide resistant weed populations in response to management practices can help towards overcoming the resistance issues. We selected one pair of susceptible (S) and resistant (R) phenotypes (2B21-R vs 2B21-S and 2B37-R vs 2B37-S) separately from two glyphosate resistant heterogeneous populations (2B21 and 2B37) of Echinochloa colona and their fate and adaptive plasticity were evaluated after glyphosate application. Our study revealed the glyphosate concentration required to cause a 50% plant mortality (LD50) was 1187, 200, 3064, and 192 g a. e. ha−1 for the four phenotypes 2B21-R, 2B21-S, 2B37-R, and 2B37-S respectively. Both S phenotypes accumulated more biomass than the R phenotypes at the lower application rates (34 and 67.5 g a. e. ha−1) of glyphosate. However, the R phenotypes generally produced more biomass at rates of glyphosate higher than 100 g a. e. ha−1 throughout the growth period. Plants from the R phenotypes of 2B21 and 2B37 generated 32% and 38% fewer spikesplant−1 than their respective S counterparts in the absence of glyphosate respectively. The spike and seed numbersplant-1 significantly higher in R than S phenotypes at increased rates of glyphosate and these relationships were significant. Our research suggests that glyphosate-resistant E. colona plants will be less fit than susceptible plants (from the same population) in the absence of glyphosate. But in the presence of glyphosate, the R plants may eventually dominate in the field. The use of glyphosate is widespread in field, would favour the selection towards resistant individuals.Md AsaduzzamanEric KoetzHanwen WuMichael HopwoodAdam ShephardNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Md Asaduzzaman Eric Koetz Hanwen Wu Michael Hopwood Adam Shephard Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate
description	Abstract Understanding the fate of heterogenous herbicide resistant weed populations in response to management practices can help towards overcoming the resistance issues. We selected one pair of susceptible (S) and resistant (R) phenotypes (2B21-R vs 2B21-S and 2B37-R vs 2B37-S) separately from two glyphosate resistant heterogeneous populations (2B21 and 2B37) of Echinochloa colona and their fate and adaptive plasticity were evaluated after glyphosate application. Our study revealed the glyphosate concentration required to cause a 50% plant mortality (LD50) was 1187, 200, 3064, and 192 g a. e. ha−1 for the four phenotypes 2B21-R, 2B21-S, 2B37-R, and 2B37-S respectively. Both S phenotypes accumulated more biomass than the R phenotypes at the lower application rates (34 and 67.5 g a. e. ha−1) of glyphosate. However, the R phenotypes generally produced more biomass at rates of glyphosate higher than 100 g a. e. ha−1 throughout the growth period. Plants from the R phenotypes of 2B21 and 2B37 generated 32% and 38% fewer spikesplant−1 than their respective S counterparts in the absence of glyphosate respectively. The spike and seed numbersplant-1 significantly higher in R than S phenotypes at increased rates of glyphosate and these relationships were significant. Our research suggests that glyphosate-resistant E. colona plants will be less fit than susceptible plants (from the same population) in the absence of glyphosate. But in the presence of glyphosate, the R plants may eventually dominate in the field. The use of glyphosate is widespread in field, would favour the selection towards resistant individuals.
format	article
author	Md Asaduzzaman Eric Koetz Hanwen Wu Michael Hopwood Adam Shephard
author_facet	Md Asaduzzaman Eric Koetz Hanwen Wu Michael Hopwood Adam Shephard
author_sort	Md Asaduzzaman
title	Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate
title_short	Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate
title_full	Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate
title_fullStr	Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate
title_full_unstemmed	Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate
title_sort	fate and adaptive plasticity of heterogeneous resistant population of echinochloa colona in response to glyphosate
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/095dd2b7016b41309f641b7caea830e5
work_keys_str_mv	AT mdasaduzzaman fateandadaptiveplasticityofheterogeneousresistantpopulationofechinochloacolonainresponsetoglyphosate AT erickoetz fateandadaptiveplasticityofheterogeneousresistantpopulationofechinochloacolonainresponsetoglyphosate AT hanwenwu fateandadaptiveplasticityofheterogeneousresistantpopulationofechinochloacolonainresponsetoglyphosate AT michaelhopwood fateandadaptiveplasticityofheterogeneousresistantpopulationofechinochloacolonainresponsetoglyphosate AT adamshephard fateandadaptiveplasticityofheterogeneousresistantpopulationofechinochloacolonainresponsetoglyphosate
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Fate and adaptive plasticity of heterogeneous resistant population of Echinochloa colona in response to glyphosate

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