ArticlePlant communications2024
LAZY4 acts additively with the starch-statolith-dependent gravity-sensing pathway to regulate shoot gravitropism and tiller angle in rice.
Article in Plant communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- A Gain-of-Function Mutation in DELLA Selectively Alters Protein Interactions to Regulate Wheat Tiller Angle and Plant Height.Plant biotechnology journal · 2026Article
- The LPA1-ITA1-BRXL4 module regulates shoot gravitropism and tiller angle in rice.Plant communications · 2026Article
- Seeds accelerate germination at beneficial planting depths by sensing the sound of rain.Scientific reports · 2026Article
- Transcriptome and metabolome analyses reveal the roles of APX2 in regulating tiller growth and metabolism in rice (Oryza sativa L.).BMC genomics · 2026Article
- LAZY5 acts in an LAZY1-independent pathway to regulate rice tiller angle.Plant biotechnology journal · 2025Article
- HSFA2D-LAZY6-LAZY1 module regulates shoot gravitropism and tiller angle in rice.The New phytologist · 2025Article
- Exploring plant responses to altered gravity for advancing space agriculture.Plant communications · 2025Review
- Epiallelic Variation of TILLER ANGLE CONTROL 5 (TAC5) Regulates Tiller Angle by Modulating Gravitropism in Rice.Rice (New York, N.Y.) · 2025Article
- Branching angles in the modulation of plant architecture: Molecular mechanisms, dynamic regulation, and evolution.Plant communications · 2025Review
- The TCP transcription factor TAC8 positively regulates the tiller angle in rice (Oryza sativa L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Fine-mapping of a QTL and identification of candidate genes associated with the lateral branch angle of peanuts (Frontiers in plant science · 2024Article
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Authors and funding
14 authors.
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Abstract
Rice tiller angle is a key agronomic trait that has significant effects on the establishment of a high-yield rice population. However, the molecular mechanism underlying the control of rice tiller angle remains to be clarified. Here, we characterized the novel tiller-angle gene LAZY4 (LA4) in rice through map-based cloning. LA4 encodes a C3H2C3-type RING zinc-finger E3 ligase localized in the nucleus, and an in vitro ubiquitination assay revealed that the conserved RING finger domain is essential for its E3 ligase activity. We found that expression of LA4 can be induced by gravistimulation and that loss of LA4 function leads to defective shoot gravitropism caused by impaired asymmetric auxin redistribution upon gravistimulation. Genetic analysis demonstrated that LA4 acts in a distinct pathway from the starch biosynthesis regulators LA2 and LA3, which function in the starch-statolith-dependent pathway. Further genetic analysis showed that LA4 regulates shoot gravitropism and tiller angle by acting upstream of LA1 to mediate lateral auxin transport upon gravistimulation. Our studies reveal that LA4 regulates shoot gravitropism and tiller angle upstream of LA1 through a novel pathway independent of the LA2-LA3-mediated gravity-sensing mechanism, providing new insights into the rice tiller-angle regulatory network.
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