19 Result(s)
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Article
Open AccessOsCOP1 regulates embryo development and flavonoid biosynthesis in rice (Oryza sativa L.)
Novel mutations of OsCOP1 were identified to be responsible for yellowish pericarp and embryo lethal phenotype, which revealed that OsCOP1 plays a crucial role in flavonoid biosynthesis and embryogenesis in rice ...
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Article
Open AccessIdentification and Characterization of LARGE EMBRYO, a New Gene Controlling Embryo Size in Rice (Oryza sativa L.)
Although embryo accounts for only 2–3% of the total weight of a rice grain, it is a good source of various nutrients for human health. Because enlarged embryo size causes increase of the amount of nutrients an...
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Article
Identification of a novel SPLIT-HULL (SPH) gene associated with hull splitting in rice (Oryza sativa L.)
The split-hull phenotype caused by reduced lemma width and low lignin content is under control of SPH encoding a type-2 13-lipoxygenase and contributes to high dehulling efficiency.
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Article
Open AccessGenome-wide analyses of late pollen-preferred genes conserved in various rice cultivars and functional identification of a gene involved in the key processes of late pollen development
Understanding late pollen development, including the maturation and pollination process, is a key component in maintaining crop yields. Transcriptome data obtained through microarray or RNA-seq technologies ca...
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Article
Open AccessThe rice zebra3 (z3) mutation disrupts citrate distribution and produces transverse dark-green/green variegation in mature leaves
Rice zebra mutants are leaf variegation mutants that exhibit transverse sectors of green/yellow or green/white in develo** or mature leaves. In most cases, leaf variegation is caused by defects in chloroplast b...
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Open AccessSugary Endosperm is Modulated by Starch Branching Enzyme IIa in Rice (Oryza sativa L.)
Starch biosynthesis is one of the most important pathways that determine both grain quality and yield in rice (Oryza sativa L.). Sugary endosperm, sugary-1 (sug-1), is a mutant trait for starch biosynthesis. Rice...
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Open AccessErratum to: ‘Influence of Multi-Gene Allele Combinations on Grain Size of Rice and Development of a Regression Equation Model to Predict Grain Parameters’
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Article
Open AccessInfluence of Multi-Gene Allele Combinations on Grain Size of Rice and Development of a Regression Equation Model to Predict Grain Parameters
Grain size is one of the key factors determining yield and quality in rice. A large number of genes are involved in the regulation of grain size parameters such as grain length and grain width. Different allel...
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Article
Genome-wide transcriptome comparison of flag leaves among japonica and indica varieties
Flag leaves in crops are one of the key organs determining grain yield, which significantly affects total yield. However, our understanding of the molecular and genetic regulation of flag leaves is very limite...
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Open AccessDefining the genome structure of `Tongil' rice, an important cultivar in the Korean "Green Revolution"
Tongil (IR667-98-1-2) rice, developed in 1972, is a high-yield rice variety derived from a three-way cross between indica and japonica varieties. Tongil contributed to the self-sufficiency of staple food producti...
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Article
Open AccessAnalysis of segregation distortion and its relationship to hybrid barriers in rice
Segregation distortion (SD) is a frequently observed occurrence in map** populations generated from crosses involving divergent genotypes. In the present study, ten genetic linkage maps constructed from reci...
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Article
Morphological and genetic characterization of off-type rice plants collected from farm fields in Korea
Off-type rice plants occurring in farm fields cause yield loss due to competition with cultivated rice, in addition to hindering field management and harvest work. This study aimed to observe the agronomic cha...
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Article
Tiller formation in rice is altered by overexpression of OsIAGLU gene encoding an IAA-conjugating enzyme or exogenous treatment of free IAA
Optimization of plant architecture is important for cultivation and yield of cereal crops in the field. Tillering is an essential factor used to determine the overall architecture of cereal crops. It has long ...
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Article
Fine map** and candidate gene analysis of dense and erect panicle 3, DEP3, which confers high grain yield in rice (Oryza sativa L.)
Architecture of the rice inflorescence, which is determined mainly by the morphology, number and length of primary and secondary inflorescence branches, is an important agronomical trait. In the current study,...
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Article
Map-based cloning of the ERECT PANICLE 3 gene in rice
Panicle architecture in rice can have a strong influence on yield. Using N-methyl-N-nitrosourea mutagenesis, we isolated an erect panicle mutant, Hep, from Hwasunchalbyeo, a glutinous japonica rice cultivar. Gene...
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Article
High-resolution map** of two rice brown planthopper resistance genes, Bph20(t) and Bph21(t), originating from Oryza minuta
Brown planthopper (BPH) is one of the most destructive insect pests of rice. Wild species of rice are a valuable source of resistance genes for develo** resistant cultivars. A molecular marker-based genetic ...
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Article
Fine map** and candidate gene analysis of hwh1 and hwh2, a set of complementary genes controlling hybrid breakdown in rice
Hybrid breakdown (HB), a phenomenon of reduced viability or fertility accompanied with retarded growth in hybrid progenies, often arises in the offspring of intersubspecific hybrids between indica and japonica in...
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Article
The serine proteinase inhibitor OsSerpin is a potent tillering regulator in rice
Tillering in rice (Oryza sativa L.) is an important agronomic trait that enhances grain production. A tiller is a specialized grain-bearing branch that is formed on a non-elongated basal internode that grows inde...
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Article
Molecular map** of a gene ‘ld(t)’ controlling cleistogamy in rice
Cleistogamy is the self-pollination within closed spikelets and is expected to be a useful genetic tool for prevention of possible gene transfer in transgenic crops, for maintenance of genetic purity in autoga...
