Mapping of low-nitrogen tolerance genes in Japonica rice at seedling stage by genome-wide association study.

ABSTRACT: Nitrogen is an essential nutrient, which plays an important role in plant growth and development process and increases crop production. However, excessive nitrogen application will lead to a series of problems such as water eutrophication and economic costs. Therefore, it is of great significance to explore rice low-nitrogen tolerance genes and breed new varieties with higher nitrogen utilization efficiency for improving the economic benefits and agricultural sustainability of agricultural production. In this study, 295 japonica rice varieties were used as materials to measure root dry weight, leaf dry weight and root-shoot ratio at seedling stage under low and high nitrogen conditions. By using Genome-wide association analysis and haplotype analysis of 587 genes among the 47 QTLs obtained

SUBMITTER: Xia S 

PROVIDER: S-EPMC12474955 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature