ArticleJournal of experimental botany2016
FLOURY ENDOSPERM7 encodes a regulator of starch synthesis and amyloplast development essential for peripheral endosperm development in rice.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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55 citing papers in PubMed, 115 citations in OpenAlex.
- Gene network analysis predicts the primary regulators of ABA-dependent transcriptional activation and repression in Populus roots.PLoS genetics · 2026Article
- Decoding heat-induced chalkiness in rice: molecular mechanisms, genetic networks, and mitigation strategies for climate resilience.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Review
- Determinants of Rice Grain Quality: Synergistic Roles of Genetics, Environment, and Agronomic Practices.International journal of molecular sciences · 2026Review
- The F-box protein CHALK10 mediates SEMIDWARF-1 ubiquitination and degradation to negatively regulate grain chalkiness in rice.Plant communications · 2025Article
- Prediction of new candidate proteins and analysis of sub-modules and protein hubs associated with seed development in rice (Oryza sativa) using an ensemble network-based systems biology approach.BMC plant biology · 2025Article
- The LCG1-OsBP5/OsEBP89-Wx module regulates the grain chalkiness and taste quality in rice.Plant biotechnology journal · 2025Article
- Phenotypic Analysis and Gene Cloning of Rice Floury Endosperm MutantPlants (Basel, Switzerland) · 2024Article
- Rice LIKE EARLY STARVATION1 cooperates with FLOURY ENDOSPERM6 to modulate starch biosynthesis and endosperm development.The Plant cell · 2024Article
- Identification of two plastid transit peptides for construction of pollen-inactivation system in rice.Molecular breeding : new strategies in plant improvement · 2024Article
- Chalkiness and premature controlled by energy homeostasis in OsNAC02 Ko-mutant during vegetative endosperm development.BMC plant biology · 2024Article
- Genome-wide association mapping of quantitative trait loci for chalkiness-related traits in rice (Frontiers in genetics · 2024Article
- Starch Properties and Morphology of Eight Floury Endosperm Mutants in Rice.Plants (Basel, Switzerland) · 2023Article
- The transcriptional hub SHORT INTERNODES1 integrates hormone signals to orchestrate rice growth and development.The Plant cell · 2023Article
- Rice HEAT SHOCK PROTEIN60-3B maintains male fertility under high temperature by starch granule biogenesis.Plant physiology · 2023Article
- Transcriptome and Metabolome Analyses Reveals the Pathway and Metabolites of Grain Quality Under Phytochrome B in Rice (Oryza sativa L.).Rice (New York, N.Y.) · 2022Article
- Combined Effects of Different Alleles ofPlants (Basel, Switzerland) · 2022Article
- Regulation ofMolecular breeding : new strategies in plant improvement · 2022Article
- Post-genomics revolution in the design of premium quality rice in a high-yielding background to meet consumer demands in the 21st century.Plant communications · 2022Review
- The CBM48 domain-containing protein FLO6 regulates starch synthesis by interacting with SSIVb and GBSS in rice.Plant molecular biology · 2022Article
- Fine Mapping of Two Major Quantitative Trait Loci for Rice Chalkiness With High Temperature-Enhanced Additive Effects.Frontiers in plant science · 2022Article
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Authors and funding
20 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
In cereal crops, starch synthesis and storage depend mainly on a specialized class of plastids, termed amyloplasts. Despite the importance of starch, the molecular machinery regulating starch synthesis and amyloplast development remains largely unknown. Here, we report the characterization of the rice (Oryza sativa) floury endosperm7 (flo7) mutant, which develops a floury-white endosperm only in the periphery and not in the inner portion. Consistent with the phenotypic alternation in flo7 endosperm, the flo7 mutant had reduced amylose content and seriously disrupted amylopectin structure only in the peripheral endosperm. Notably, flo7 peripheral endosperm cells showed obvious defects in compound starch grain development. Map-based cloning of FLO7 revealed that it encodes a protein of unknown function. FLO7 harbors an N-terminal transit peptide capable of targeting functional FLO7 fused to green fluorescent protein to amyloplast stroma in developing endosperm cells, and a domain of unknown function 1338 (DUF1338) that is highly conserved in green plants. Furthermore, our combined β-glucuronidase activity and RNA in situ hybridization assays showed that the FLO7 gene was expressed ubiquitously but exhibited a specific expression in the endosperm periphery. Moreover, a set of in vivo experiments demonstrated that the missing 32 aa in the flo7 mutant protein are essential for the stable accumulation of FLO7 in the endosperm. Together, our findings identify FLO7 as a unique plant regulator required for starch synthesis and amyloplast development within the peripheral endosperm and provide new insights into the spatial regulation of endosperm development in rice.
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