ArticlePlant, cell & environment2026
Enhanced Activity of Glutamine Synthetase by Manipulating a GWAS-Identified BnaA02.GLN1;2 Gene Augments Nitrate Uptake and Yield in Brassica napus.
Article in Plant, cell & environment, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Enhanced Activity of Glutamine Synthetase by Manipulating a GWAS-Identified BnaA02.GLN1;2 Gene Augments Nitrate Uptake and Yield in Brassica napus.Plant, cell & environment · 2026Article
- Genetic Analysis of Genomic and Methylomic Variation and Identification of Multi-Trait Mutants in Rice Carried on Chang'e-5.Plants (Basel, Switzerland) · 2026Article
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Authors and funding
13 authors.
Funding
Abstract
Exploiting natural variation to uncouple yield from nitrogen (N) input is essential for sustainable oilseed rape production. Here, we screened 505 accessions and discovered a 10-fold gradient in chlorate (ClO₃⁻) sensitivity that mirrors genotypic differences in nitrogen use efficiency (NUE). Chlorate-sensitive genotypes (CSG) exhibited 35% higher ¹⁵NO₃⁻ influx, 40%-62% greater root glutamine synthetase (GS) activity, and almost twice the seed yield of chlorate-insensitive genotypes (CIG) under high-N supply, whereas nitrate (NO₃⁻) reductase activity was unchanged. Chemical inhibition of GS using L-methionine-S-sulfoximine (MSX) resulted in the loss of ClO₃⁻ sensitivity, mechanistically linking assimilation flux to the observed phenotypic variation. Root proteomic analysis identified differentially abundant proteins between CSG and CIG and showed that BnaA02.GLN1;2 (a cytosolic GS1 homologue) was a hub protein with higher abundance in CSG. Overexpression of BnaA02.GLN1;2 enhanced rapeseed chlorate sensitivity under sufficient NO₃⁻ supply, promoted seedling growth, and enhanced both NO₃⁻ uptake and assimilation. Mature transgenic plants produced more pods and higher yields under normal N conditions while simultaneously reducing seed erucic acid and glucosinolate concentrations. Genome-wide association study mapped a major quantitative trait locus on chromosome A02, with BnaA02.GLN1;2 as the causal gene. Eleven single-nucleotide polymorphisms (SNPs) classified BnaA02.GLN1;2 into three haplotypes: BnaA02.GLN1;2
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Registered trials
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