Mutations in the plastidic ACCase gene endowing resistance to ACCase-inhibiting herbicide in Phalaris minor populations from India.

ABSTRACT: Littleseed canarygrass (Phalaris minor Retz.) is one of the most common and troublesome weeds infesting wheat crop in India. Repeated use during the last two decades of the ACCase-inhibiting herbicide (clodinafop) to control this weed has resulted in the occurrence of resistance. Fifty-three P. minor populations were collected from wheat fields in Haryana and Punjab states of India. The dose-response assays indicated that 29 populations were resistant, 23 populations were susceptible and one population was moderately resistant to clodinafop. Sequence analysis of the CT domain of ACCase gene among resistant and susceptible populations revealed two non-synonymous mutations, Trp₂₀₂₇ to Cys and Ile₂₀₄₁ to Asn in the resistant populations. Allele-specific PCR markers were

SUBMITTER: Raghav N 

PROVIDER: S-EPMC4701707 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature