Evidence map›Paper›PMID 32384162›Full record

ArticlePlant & cell physiology2020

OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions.

Sichul Lee, Joonheum Park, Jinwon Lee, Dongjin Shin, Anne Marmagne, Pyung Ok Lim, Céline Masclaux-Daubresse, Gynheung An, Hong Gil Nam

Abstract read
In one paragraph

Article in Plant & cell physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

42 citing papers in PubMed.

  1. Plasticity of metabolism in plants.The Plant journal : for cell and molecular biology · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Frontiers in plant science · 2026
    Article
  9. Review
  10. Article
  11. Article
  12. Exploring the Effects ofPlants (Basel, Switzerland) · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Sichul LeeCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu 42988, Korea.
Joonheum ParkCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu 42988, Korea.
Jinwon LeeCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu 42988, Korea.
Dongjin ShinDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea.
Anne MarmagneInstitut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France.
Pyung Ok LimDepartment of New Biology, DGIST, Daegu 42988, Korea.
Céline Masclaux-DaubresseInstitut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France.
Gynheung AnDepartment of Genetic Engineering and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Korea.
Hong Gil NamCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu 42988, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nitrogen (N) is a major limiting factor affecting crop yield in unfertilized soil. Thus, cultivars with a high N use efficiency (NUE) and good grain protein content (GPC) are needed to fulfill the growing food demand and to reduce environmental burden. This is especially true for rice (Oryza sativa L.) that is cultivated with a high input of N fertilizer and is a primary staple food crop for more than half of the global population. Here, we report that rice asparagine synthetase 1 (OsASN1) is required for grain yield and grain protein contents under both N-sufficient (conventional paddy fields) and N-limiting conditions from analyses of knockout mutant plants. In addition, we show that overexpression (OX) of OsASN1 results in better nitrogen uptake and assimilation, and increased tolerance to N limitation at the seedling stage. Under field conditions, the OsASN1 OX rice plants produced grains with increased N and protein contents without yield reduction compared to wild-type (WT) rice. Under N-limited conditions, the OX plants displayed increased grain yield and protein content with enhanced photosynthetic activity compared to WT rice. Thus, OsASN1 can be an effective target gene for the development of rice cultivars with higher grain protein content, NUE, and grain yield under N-limiting conditions.

Indexed as

Aspartate-Ammonia LigaseEdible GrainGene Expression Regulation, PlantNitrogenOryzaPlant ProteinsPlants, Genetically ModifiedQuantitative Trait, HeritableSeedlingsAspartate-Ammonia LigaseNitrogenPlant ProteinsAsparagine synthetase 1Grain quality and yieldKnockoutNitrogen use efficiencyOverexpressionRice

Identifiers

PMID32384162
PMCPMC7377344

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.