Table 1.

EPSPS gene duplication reported in glyphosate-resistant weed species

Species	Population origin	EPSPS relative genomic copy number range	Reference
Amaranthus palmeri	Georgia	40–100	55
Amaranthus palmeri	North Carolina	20–60	57
Amaranthus palmeri	New Mexico	2–10	58
Amaranthus palmeri	Mississippi	33–59	56
Amaranthus tuberculatus	Missouri, Illinois	4	62
Lolium multiflorum	Arkansas	15–25	60
Kochia scoparia	Kansas, Colorado	3–9	61
Amaranthus spinosus	Mississippi	26–37	63