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Article
Genome-wide association study of leaf photosynthesis using a high-throughput gas exchange system in rice
Enhancing leaf photosynthetic capacity is essential for improving the yield of rice (Oryza sativa L.). Although the exploitation of natural genetic resources is considered a promising approach to enhance photosyn...
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Article
Two bHLH transcription factors affect sprouting by regulating the level of ABA
For plants, the decision to germinate is a gamble on their subsequent survival. Xu et al. have now discovered a mechanism that determines the choice between germination and dormancy by regulating the level of ...
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Article
Open AccessGenome-wide association study identifies a gene responsible for temperature-dependent rice germination
Environment is an important determinant of agricultural productivity; therefore, crops have been bred with traits adapted to their environment. It is assumed that the physiology of seed germination is optimise...
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Article
Open AccessEvolutionary alterations in gene expression and enzymatic activities of gibberellin 3-oxidase 1 in Oryza
Proper anther and pollen development are important for plant reproduction. The plant hormone gibberellin is important for anther development in rice, but its gametophytic functions remain largely unknown. Here...
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Article
Open AccessPotential of rice landraces with strong culms as genetic resources for improving lodging resistance against super typhoons
It is generally believed that rice landraces with long culms are susceptible to lodging, and have not been utilized for breeding to improve lodging resistance. However, little is known about the structural cul...
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Article
Open AccessDiverse panicle architecture results from various combinations of Prl5/GA20ox4 and Pbl6/APO1 alleles
Panicle architecture directly affects crop productivity and is a key target of high-yield rice breeding. Panicle length strongly affects panicle architecture, but the underlying regulatory mechanisms are large...
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Article
Open AccessA common allosteric mechanism regulates homeostatic inactivation of auxin and gibberellin
Allosteric regulation is protein activation by effector binding at a site other than the active site. Here, we show via X-ray structural analysis of gibberellin 2-oxidase 3 (GA2ox3), and auxin dioxygenase (DAO...
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Article
Arabidopsis Group IIId ERF proteins positively regulate primary cell wall-type CESA genes
The cell wall determines morphology and the environmental responses of plant cells. The primary cell wall (PCW) is produced during cell division and expansion, determining the cell shape and volume. After cell...
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Article
New path towards a better rice architecture
New plant type (NPT) or ideal plant architecture (IPA) is an attractive way of increasing yield potential by promoting high resource use efficiency combined with better lodging resistance. In a recent paper in Ce...
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Article
Genome-wide association study using whole-genome sequencing rapidly identifies new genes influencing agronomic traits in rice
Makoto Matsuoka and colleagues use a whole-genome sequencing-based approach to perform genome-wide association analysis for important agronomic traits in rice. Using phenotypically diverse rice with low interr...
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Article
Open AccessPrecise estimation of genomic regions controlling lodging resistance using a set of reciprocal chromosome segment substitution lines in rice
Severe lodging has occurred in many improved rice varieties after the recent strong typhoons in East and Southeast Asian countries. The indica variety Takanari possesses strong culm characteristics due to its lar...
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Article
Open AccessSorghum Dw1, an agronomically important gene for lodging resistance, encodes a novel protein involved in cell proliferation
Semi-dwarfing genes have contributed to enhanced lodging resistance, resulting in increased crop productivity. In the history of grain sorghum breeding, the spontaneous mutation, dw1 found in Memphis in 1905, was...
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Article
Rice genetics: Control of grain length and quality
Rice breeders have independently selected different overexpression alleles of the same gene to increase grain length and grain quality.
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Article
Open AccessIncreased lodging resistance in long-culm, low-lignin gh2 rice for improved feed and bioenergy production
Lignin modification has been a breeding target for the improvements of forage digestibility and energy yields in forage and bioenergy crops, but decreased lignin levels are often accompanied by reduced lodging...
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Article
Open AccessSplit luciferase complementation assay to detect regulated protein-protein interactions in rice protoplasts in a large-scale format
The rice interactome, in which a network of protein-protein interactions has been elucidated in rice, is a useful resource to identify functional modules of rice signal transduction pathways. Protein-protein i...
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Article
Open AccessGibberellin deficiency pleiotropically induces culm bending in sorghum: an insight into sorghum semi-dwarf breeding
Regulation of symmetrical cell growth in the culm is important for proper culm development. So far, the involvement of gibberellin (GA) in this process has not yet been demonstrated in sorghum. Here, we show t...
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Article
ROOT GROWTH INHIBITING, a Rice Endo-1,4-β-d-Glucanase, Regulates Cell Wall Loosening and is Essential for Root Elongation
The molecular mechanism involved in cell wall dynamics has not been well clarified, although it is quite important for organ growth. We characterized a rice mutant, root growth inhibiting (rt), which is defective...
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Article
OsGA20ox1, a candidate gene for a major QTL controlling seedling vigor in rice
Seedling vigor is among the major determinants of stable stand establishment in direct-seeded rice (Oryza sativa L.) in temperate regions. Quantitative trait loci (QTL) for seedling vigor were identified using 25...
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Article
OsCAD2 is the major CAD gene responsible for monolignol biosynthesis in rice culm
Cinnamyl alcohol dehydrogenase (CAD) catalyzes the last step of monolignol biosynthesis. The rice genome contains 12 CAD-like genes, and whereas the proteins encoded by OsCAD2 and OsCAD7 are known to function in ...
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Article
Open AccessThe Gibberellin perception system evolved to regulate a pre-existing GAMYB-mediated system during land plant evolution
Gibberellin (GA) controls pollen development in flowering plants via the GAMYB transcription factor. Here we show that GAMYB is conserved in Selaginella moellendorffii (lycophyte) and Physcomitrella patens (moss)...
