Weed resistance

EPSPS variability, gene expression, and enzymatic activity in glyphosate-resistant biotypes of Digitaria insularis

E. Galeano, Barroso, A. A. M., Vasconcelos, T. S., López-Rubio, A., Albrecht, A. J. P., R. Filho, V., Carrer, H., Galeano, E., Barroso, A. A. M., Vasconcelos, T. S., López-Rubio, A., Albrecht, A. J. P., R. Filho, V., and Carrer, H., EPSPS variability, gene expression, and enzymatic activity in glyphosate-resistant biotypes of Digitaria insularis, vol. 15, p. -, 2016.

Weed resistance to herbicides is a natural phenomenon that exerts selection on individuals in a population. In Brazil, glyphosate resistance was recently detected in Digitaria insularis. The objective of this study was to elucidate mechanisms of weed resistance in this plant, including genetic variability, allelism, amino acid substitutions, gene expression, and enzymatic activity levels. Most of these have not previously been studied in this species. D. insularis DNA sequences were used to analyze genetic variability.

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