Multiple evolutionary origins of glyphosate resistance in Lolium multiflorum.

ABSTRACT: The multitude of herbicide resistance patterns that have evolved in different weed species is a remarkable example of the rapid adaptation to anthropogenic-driven disturbance. Recently, resistance to glyphosate was identified in multiple populations of Lolium multiflorum in Oregon. We used phenotypic approaches, as well as population genomic and gene expression analyses, to determine whether known mechanisms were responsible for glyphosate resistance and whether resistance phenotypes evolved independently in different populations, and to identify potential loci contributing to resistance. We found no evidence of genetic alterations or expression changes at known target and non-target-site resistance mechanisms of glyphosate. Population genomic analyses indicated that resistant popul

SUBMITTER: Brunharo CACG 

PROVIDER: S-EPMC8867705 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature