ArticlePlanta2012
A mutation in the rice chalcone isomerase gene causes the golden hull and internode 1 phenotype.
Article in Planta, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed, 80 citations in OpenAlex.
- Regulatory Roles of PURPLE FRUIT 1 and OsPa in Pigmentation of Rice Grain.Rice (New York, N.Y.) · 2026Article
- Functional characterization of BbCHI3 in regulating flavonoid biosynthesis and abiotic stress tolerance in Blumea balsamifera.BMC plant biology · 2026Article
- Downregulation of chalcone isomerase in Petunia hybrida: profound effects on floral morphology and transcriptional remodeling of the flavonoid biosynthetic pathway.BMC plant biology · 2025Article
- Structural variation in theMolecular breeding : new strategies in plant improvement · 2025Article
- Advances and Future Prospects of Pigment Deposition in Pigmented Rice.Plants (Basel, Switzerland) · 2025Review
- Comparative Transcriptomic Analyses of Anthocyanin Biosynthesis Genes in Eggplant Under Low Temperature and Weak Light.Plants (Basel, Switzerland) · 2025Article
- Genetic dissection of a major locus SC9.1 conferring seed color in broomcorn millet (Panicum miliaceum).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- A loss-of-function mutation in OsTZF5 confers sensitivity to low temperature and effects the growth and development in rice.Plant molecular biology · 2024Article
- Whole-genome resequencing and transcriptome analyses of four generation mutants to reveal spur-type and skin-color related genes in apple (Malus domestica Borkh. Cv. Red delicious).BMC plant biology · 2023Article
- Discovery of isoflavone phytoalexins in wheat reveals an alternative route to isoflavonoid biosynthesis.Nature communications · 2023Article
- Enhanced UV-B Radiation Induced the Proanthocyanidins Accumulation in Red Rice Grain of Traditional Rice Cultivars and Increased Antioxidant Capacity in Aging Mice.International journal of molecular sciences · 2023Article
- Analysis of anthocyanins and total flavonoids content in functional rice and its recombination inbred lines.Frontiers in plant science · 2023Article
- Detection of QTLs Regulating Six Agronomic Traits of Rice Based on Chromosome Segment Substitution Lines of Common Wild Rice (Biomolecules · 2022Article
- Flavonoid Metabolic Profiles and Gene Mapping of Rice (Oryza sativa L.) Purple Gradient Grain Hulls.Rice (New York, N.Y.) · 2022Article
- Uncovering Hierarchical Regulation among MYB-bHLH-WD40 Proteins and Manipulating Anthocyanin Pigmentation in Rice.International journal of molecular sciences · 2022Article
- Alternative Splicing and Its Roles in Plant Metabolism.International journal of molecular sciences · 2022Review
- Deficiency in flavonoid biosynthesis genes CHS, CHI, and CHIL alters rice flavonoid and lignin profiles.Plant physiology · 2022Article
- Article
- Biochemical and Molecular Characterization of the Rice Chalcone Isomerase Family.Plants (Basel, Switzerland) · 2021Article
- Identification of QTL related to anther color and hull color by RAD sequencing in a RIL population of Setaria italica.BMC genomics · 2021Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The biosynthesis of flavonoids, important secondary plant metabolites, has been investigated extensively, but few mutants of genes in this pathway have been identified in rice (Oryza sativa). The rice gold hull and internode (gh) mutants exhibit a reddish-brown pigmentation in the hull and internode and their phenotype has long been used as a morphological marker trait for breeding and genetic study. Here, we characterized that the gh1 mutant was a mutant of the rice chalcone isomerase gene (OsCHI). The result showed that gh1 had a Dasheng retrotransposon inserted in the 5′ UTR of the OsCHI gene, which resulted in the complete loss of OsCHI expression. gh1 exhibited golden pigmentation in hulls and internodes once the panicles were exposed to light. The total flavonoid content in gh1 hulls was increased threefold compared to wild type. Consistent with the gh1 phenotype, OsCHI transcripts were expressed in most tissues of rice and most abundantly in internodes. It was also expressed at high levels in panicles before heading, distributed mainly in lemmas and paleae, but its expression decreased substantially after the panicles emerged from the sheath. OsCHI encodes a protein functionally and structurally conserved to chalcone isomerases in other species. Our findings demonstrated that the OsCHI gene was indispensable for flux of the flavonoid pathway in rice.
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