Ozone-Tolerant Rice for Air-Polluted Environments.

ABSTRACT: Recent decades have witnessed a surge in tropospheric ozone concentrations across many Asian countries, including Bangladesh, posing a significant threat to rice yields and regional food security. This study presents a comprehensive marker-assisted breeding program designed to introgress two quantitative trait loci (QTL) conferring ozone tolerance into elite Bangladeshi rice varieties. We crossed the donor landrace Kasalath with high-yielding varieties BRRI dhan28 and Binadhan-11, generating BC₂F₄ lines with an average of 87% recipient parent genome recovery. These lines harbored diverse combinations of positive alleles at the target QTLs while retaining the agronomic traits of modern rice varieties. In controlled open-top-chamber experiments, the presence of these QT

SUBMITTER: Alam MS 

PROVIDER: S-EPMC12683472 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature