ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2024
The wall-associated kinase GWN1 controls grain weight and grain number in rice.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Knocking out a wall-associated kinase gene enhances rice resistance to planthoppers in the field.Pest management science · 2026Article
- The OsbZIP35-COR1-OsTCP19 module modulates cell proliferation to regulate grain length and weight in rice.Science advances · 2025Article
- Fine mapping and candidate gene analysis of major QTLs for number of seeds per pod in Arachis hypogaea L.BMC genomics · 2025Article
- Article
- Function of WAKs in Regulating Cell Wall Development and Responses to Abiotic Stress.Plants (Basel, Switzerland) · 2025Review
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Authors and funding
11 authors.
Funding
Abstract
Grain size is a crucial agronomic trait that determines grain weight and final yield. Although several genes have been reported to regulate grain size in rice (Oryza sativa), the function of Wall-Associated Kinase family genes affecting grain size is still largely unknown. In this study, we identified GRAIN WEIGHT AND NUMBER 1 (GWN1) using map-based cloning. GWN1 encodes the OsWAK74 protein kinase, which is conserved in plants. GWN1 negatively regulates grain length and weight by regulating cell proliferation in spikelet hulls. We also found that GWN1 negatively influenced grain number by influencing secondary branch numbers and finally increased plant grain yield. The GWN1 gene was highly expressed in inflorescences and its encoded protein is located at the cell membrane and cell wall. Moreover, we identified three haplotypes of GWN1 in the germplasm. GWN1
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