Loss-of-function variants of CYP706A3 in two natural accessions of Arabidopsis thaliana increase floral sesquiterpene emission.

ABSTRACT:

Background

The major floral scent compounds of Arabidopsis thaliana flowers are terpenes. Although A. thaliana is generally considered to be a self-pollinating plant, there are natural variation in terpene volatile emission from flowers. However, the genetic mechanisms underlying the natural variation in Arabidopsis floral scents remain limited.

Results

Here, we screened 116 natural accessions of A. thaliana and observed a substantial variability in the levels of terpene emission across these accessions. A genome-wide association study (GWAS) uncovered a genomic region associated with the observed variability in myrcene, one of monoterpene compounds. We then performed high-throughput genetic mapping using two representative accessions: Col-0 and Fr-2, which emit low and larg

SUBMITTER: Kang M 

PROVIDER: S-EPMC11874846 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature