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Article
T-DNA insertion mutants of Arabidopsis DA1 orthologous genes displayed altered plant height and yield-related traits in rice (O. sativa L.)
The Arabidopsis DA1 gene is a key player in the regulation of organ and seed development. To extend our understanding of its functional counterparts in rice, this study investigates the roles of orthologous genes...
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Article
Open AccessCharacterization of Domestication Loci Associated with Awn Development in Rice
Rice (Oryza sativa L.) is a widely studied domesticated model plant. Seed awning is an unfavorable trait during rice harvesting and processing. Hence, loss of awn was one of the target characters selected during...
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Article
Open AccessCharacterization of a New qLTG3–1 Allele for Low-temperature Germinability in Rice from the Wild Species Oryza rufipogon
Rice (Oryza sativa L.) is generally sensitive to low temperatures, and in production systems that use direct-seeding, low-temperature germinability (LTG) is a desired trait. Previously, the QTLs, qLTG1 and qLTG3,
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Article
Fine map** and candidate gene analysis of the quantitative trait locus gw8.1 associated with grain length in rice
A quantitative trait locus (QTL) gw8.1 was detected in the population derived from a cross between the elite japonica cultivar, ‘Hwaseong’ and Oryza rufipogon (IRGC 105491). Near isogenic lines (NILs) harboring t...
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Article
Open AccessMesocotyl Elongation is Essential for Seedling Emergence Under Deep-Seeding Condition in Rice
Direct-seeding cultivation by deep-seeding of seeds (drill seeding) is becoming popular due to the scarcity of land and labor. However, poor emergence and inadequate seedling establishment can lead to yield lo...
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Article
Open AccessQTL Map** of Grain Quality Traits Using Introgression Lines Carrying Oryza rufipogon Chromosome Segments in Japonica Rice
Improved eating quality is a major breeding target in japonica rice due to market demand. Consequently, quantitative trait loci (QTL) for glossiness of cooked rice and amylose content associated with eating quali...
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Article
In planta cleavage of carotenoids by Arabidopsis carotenoid cleavage dioxygenase 4 in transgenic rice plants
A family of carotenoid cleavage dioxygenases (CCDs) produces diverse apocarotenoid compounds via the oxidative cleavage of carotenoids as substrates. Their types are highly dependent on the action of the CCD f...
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Article
Comprehensive identification of LMW-GS genes and their protein products in a common wheat variety
Although it is well known that low-molecular-weight glutenin subunits (LMW-GS) from wheat affect bread and noodle processing quality, the function of specific LMW-GS proteins remains unclear. It is important t...
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Chapter
Brief History and Perspectives on Plant Breeding
Following the rediscovery of Mendel’s principles of heredity in 1900, plant breeding has made tremendous progress in develo** diverse methodologies to create and select variation by using genetic principles....
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Chapter
QTL Identification
Many important agronomic traits, such as crop yield and stress tolerance, are controlled by polygenes, each with subtle effects and influenced by the environment. Such characteristics are referred to as quanti...
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Article
Open AccessHigh-density map** of quantitative trait loci for grain-weight and spikelet number in rice
High grain yield is one of the most important traits requiring improvement in rice breeding programs. Consequently, the genetic basis of spikelets per panicle (SPP) and grain weight (TGW) have received much re...
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Article
Open AccessNuclear and chloroplast diversity and phenotypic distribution of rice (Oryza sativa L.) germplasm from the democratic people’s republic of Korea (DPRK; North Korea)
Rice accounts for 43% of staple food production in the Democratic People’s Republic of Korea (DPRK). The most widely planted rice varieties were developed from a limited number of ancestral lines that were rep...
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Article
Open AccessQTL map** reveals a tight linkage between QTLs for grain weight and panicle spikelet number in rice
A number of QTL studies reported that one genomic region was associated with several traits, indicating linkage and/or pleiotropic effects. The question of pleiotropy versus tight linkage in these studies shou...
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Article
Open AccessMap** and characterization of quantitative trait loci for mesocotyl elongation in rice (Oryza sativa L.)
Mesocotyl elongation is an important trait for seedling emergence in direct-seeding cultivation in rice. In this study, a backcross inbred line (BIL) population from a cross between Kasalath and Nipponbare was...
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Article
Fine map** of grain weight QTL, tgw11 using near isogenic lines from a cross between Oryza sativa and O. grandiglumis
In our previous study, we reported the grain weight (GW) QTL, tgw11 in isogenic lines derived from a cross between Oryza sativa ssp. Japonica cv. Hwaseong and O. grandiglumis. The O. grandiglumis allele at tgw11 ...
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Article
Open AccessDevelopment of a Research Platform for Dissecting Phenotype–Genotype Associations in Rice (Oryza spp.)
We present an overview of a research platform that provides essential germplasm, genotypic and phenotypic data and analytical tools for dissecting phenotype–genotype associations in rice. These resources inclu...
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Article
Map** QTLs for grain quality using an introgression line population from a cross between Oryza sativa and O. rufipogon
Quantitative trait loci (QTL) associated with four milling recovery properties, two chemical properties, six paste properties of grain, and six textural parameters of cooked rice were identified using an intro...
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Article
Fine map** of grain weight QTLs using near isogenic lines from a Cross between Oryza sativa and O. grandiglumis
In a previous study, we reported the grain weight QTL, tgw2 in the 150 F2:3 lines derived from a cross between Oryza sativa subssp. Japonica cv. Hwaseongbyeo and HG101. This QTL was confirmed in F4 lines (CR1242)...
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Article
QTL dissection of agronomic and domestication traits using introgression lines carrying wild rice (Oryza rufipogon Griff.) segments in cultivated rice (O. sativa L.) background
The nearly isogenic nature of the introgression lines (ILs) provides a relative advantage over other segregating populations in the rapid implementation of pyramiding approach through crosses and marker analys...
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Article
Map** QTLs for salt tolerance in an introgression line population between Japonica cultivars in rice
QTL analysis of physiological traits related to salt tolerance was carried out using 117 BC3F5 lines derived from a cross between “Ilpumbyeo” as a recurrent parent and “Moroberekan” as a donor parent. The 117 int...
