Survey of the genomic landscape surrounding the 5‐enolpyruvylshikimate‐3‐phosphate synthase (<i>EPSPS</i>) gene in glyphosate‐resistant <i>Amaranthus palmeri</i> from geographically distant populations in the USA

Abstract

EPSPS cassettes from distant resistant populations were nearly homologous. Considering the complexity of the cassette, and the degree of similarity among some cassette sequences, the results are consistent with the hypothesis that glyphosate resistance probably evolved once and then rapidly spread across the USA. © 2017 Society of Chemical Industry.