GWAS on multiple traits identifies mitochondrial ACONITASE3 as important for acclimation to submergence stress.

ABSTRACT: Flooding causes severe crop losses in many parts of the world. Genetic variation in flooding tolerance exists in many species; however, there are few examples for the identification of tolerance genes and their underlying function. We conducted a genome-wide association study (GWAS) in 387 Arabidopsis (Arabidopsis thaliana) accessions. Plants were subjected to prolonged submergence followed by desubmergence, and seven traits (score, water content, Fv/Fm, and concentrations of nitrate, chlorophyll, protein, and starch) were quantified to characterize their acclimation responses. These traits showed substantial variation across the range of accessions. A total of 35 highly significant single-nucleotide polymorphisms (SNPs) were identified across the 20 GWA datasets, pointing to 22 candidate

SUBMITTER: Meng X 

PROVIDER: S-EPMC8968326 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature