Differential expression of genes associated with non-target site resistance in Poa annua with target site resistance to acetolactate synthase inhibitors.

ABSTRACT:

Background

Poa annua is a pervasive grassy, self-pollinating, weed that has evolved resistance to 10 different herbicide modes-of-action, third most of all weed species. We investigated constitutive overexpression of genes associated with non-target site resistance (NTSR) in POAAN-R3 and the response of those genes when treated with trifloxysulfuron despite the biotype having a known target site mutation in acetolactate synthase (ALS).

Results

Despite having an ALS target site mutation, POAAN-R3 still had a transcriptomic response to herbicide application that differed from a susceptible biotype. We observed differential expression of genes associated with transmembrane transport and oxidation-reduction activities, with differences being most pronounced prior to herbicide tr

SUBMITTER: Laforest M 

PROVIDER: S-EPMC8518846 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature