Genetic dissection of root traits in a rice 'global MAGIC' population for candidate traits to breed for reduced methane emission.

ABSTRACT: Rice cultivation is critical for global food security. The largely practiced method of rice cultivation by transplantation under flooded fields contributes significantly to methane (CH₄) emissions, posing challenges to climate-smart agriculture. This study uses a multi-parent advanced generation inter-cross (MAGIC) population of 250 rice genotypes to understand the genetic basis of root traits that may govern CH₄ mitigation. Phenotyping under controlled greenhouse conditions revealed significant variation in root diameter (0.122-0.481 mm) and porosity (5.344-56.793 g), and strong correlations between root diameter and porosity traits (r = 0.40-0.50, p < 0.001). Association studies revealed key candidate genes including Os05g0411200 (thermosensitive chloroplast develop

SUBMITTER: Roy RK 

PROVIDER: S-EPMC12283710 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature