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Article

Natural variation in BRN1 enhances nitrogen sensitivity to improve rice nitrogen use efficiency.

Nature communications - 11 Aug 2026

Sun Huwei, Chen Yake, Hu Yibo, Wang Hanyun, Zhu Wenjun, Liu Yuqing, Ren Ningning, Hu Bin, Chu Chengcai

Abstract excerpt

Green Revolution rice varieties deliver high yields but require excessive nitrogen (N) fertilizer and show diminished N responsiveness, severely reducing nitrogen-use efficiency (NUE). To dissect the molecular basis of low N sensitivity in modern cultivars, we conducted a genome-wide association study (GWAS) for biomass response to N (BRN), a trait tightly linked to N sensitivity, using a diverse rice germplasm...

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Topics

Oryza
Nitrogen
Plant Proteins
Gene Expression Regulation, Plant
Genome-Wide Association Study
Biomass

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PMID: 42711326
DOI: 10.1038/s41467-026-76279-9
PMCID: PMC13554061

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