ArticleBMC plant biology2023
SPR9 encodes a 60 S ribosomal protein that modulates panicle spreading and affects resistance to false smut in rice (Oryza sativa. L).
Article in BMC plant biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- The Zma-miRNA319-ZmMYB74 Module Regulates Maize Resistance to Stalk Rot Disease by Modulating Lignin Deposition.Plant biotechnology journal · 2026Article
- Integrated transcriptome and metabolome analysis reveals the molecular mechanism underlying differences in Psa resistance betweenFrontiers in plant science · 2026Article
- Comprehensive Transcriptomic Analysis of the Molecular Mechanisms Conferring Resistance to Rice Blast in the Elite Restorer Line Fuhui2165.International journal of molecular sciences · 2025Article
- Use of CRISPR Technology in Gene Editing for Tolerance to Biotic Factors in Plants: A Systematic Review.Current issues in molecular biology · 2024Review
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Abstract
backgroundThe architecture of inflorescence in crops is a key agronomic feature determining grain yield and thus has been a major target trait of cereal domestication.
resultsIn this study, we show that a simple spreading panicle change in rice panicle shape, controlled by the Spreading Panicle 9 (SPR9) locus, also has a significant impact on the resistance to rice false smut (RFS). Meanwhile, we mapped a novel spr9 mutant gene between markers Indel5-18 and Indel5-22 encompassing a genomic region of 43-kb with six candidate genes. Through gene prediction and cDNA sequencing, we confirmed that LOC_Os05g38520 is the target gene in the spr9 mutant, which encodes 60 S ribosomal protein L36-2. Further analysis showed that the spr9 mutant is caused by a 1 bp deletion in the first exon that resulted in premature termination. Knockout experiments showed that the SPR9 gene is responsible for the spreading panicle phenotype of the spr9 mutant. Interestingly, the spr9 mutant was found to improve resistance to RFS without affecting major agronomic traits. Taken together, our results revealed that the spr9 allele has good application prospects in rice breeding for disease resistance and panicle improvement.
conclusionsWe report the map-based cloning and functional characterization of SPR9, which encodes a 60 S ribosomal protein that regulates spreading panicles and affects the resistance to false smut in rice.
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