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Article
Identification of QTLs responsible for culturability, and fine-map** of QTL qCBT9 related to callus browning derived from Dongxiang common wild rice (Oryza rufipogon Griff.)
Compared to japonica, the lower genetic transformation efficiency of indica is a technical bottleneck for rice molecular breeding. Specifically, callus browning frequently occurs during the culture of the elite i...
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Article
Open AccessOsMADS17 simultaneously increases grain number and grain weight in rice
During the processes of rice domestication and improvement, a trade-off effect between grain number and grain weight was a major obstacle for increasing yield. Here, we identify a critical gene COG1, encoding the...
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Article
Map** quantitative trait loci associated with callus browning in Dongxiang common wild rice (Oryza rufipogon Griff.)
Genetic transformation of indica rice (Oryza sativa ssp. indica) is limited by callus browning, which results in poor in vitro tissue culturability. Elucidating the genes in common wild rice (Oryza rufipogon Grif...
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Article
The GZnC1 variant from common wild rice influences grain Zn content
Zinc (Zn) deficiency, caused by inadequate Zn intake in the human diet, has serious health implications. Rice (Oryza sativa) is the staple food in regions with a high incidence of Zn deficiency, so raising Zn lev...
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Article
An Agrobacterium-mediated non-antibiotic selection-based transformation system for rice (Oryza sativa ssp. indica) cultivar “93-11” successfully produces TAC1-silenced transgenic plants
The rice (Oryza sativa L. ssp. indica) cultivar “93-11” is a reference genotype used in many studies; however, its recalcitrance during transformation and regeneration greatly limits functional genomics and breed...
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Article
Open AccessA common wild rice-derived BOC1 allele reduces callus browning in indica rice transformation
Callus browning, a common trait derived from the indica rice cultivar (Oryza sativa L.), is a challenge to transformation regeneration. Here, we report the map-based cloning of BROWNING OF CALLUS1 (BOC1) using a ...
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Article
Genetic control of seed shattering during African rice domestication
Domestication represents a unique opportunity to study the evolutionary process. The elimination of seed dispersal traits was a key step in the evolution of cereal crops under domestication. Here, we show that Ob...
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Article
Open AccessNOG1 increases grain production in rice
During rice domestication and improvement, increasing grain yield to meet human needs was the primary objective. Rice grain yield is a quantitative trait determined by multiple genes, but the molecular basis f...
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Article
Open AccessGenomic structure analysis of a set of Oryza nivara introgression lines and identification of yield-associated QTLs using whole-genome resequencing
Oryza nivara, an annual wild AA-genome species of rice, is an important gene pool for broadening the genetic diversity of cultivated rice (O. sativa L.). Towards identifying and utilizing favourable alleles from
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Article
Identification of Quantitative Trait Locus for Seed Dormancy and Expression Analysis of Four Dormancy-Related Genes in Sorghum
Seed dormancy is an important trait during the domestication of major crops. Dormant seeds are unable to germinate under conditions normally suitable for non-dormant seeds. Quantitative trait loci (QTLs) and g...
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Article
Open AccessGenetic control of inflorescence architecture during rice domestication
Inflorescence architecture is a key agronomical factor determining grain yield, and thus has been a major target of cereal crop domestication. Transition from a spread panicle typical of ancestral wild rice (Oryz...
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Article
TH1, a DUF640 domain-like gene controls lemma and palea development in rice
The developmental regulation of grasses lemma and palea and their relationship to the floral organs in dicots had been variously explicated and extensively debated. Here, we characterized a triangular hull mut...
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Article
Control of a key transition from prostrate to erect growth in rice domestication
Chuanqing Sun and colleagues show that the gene PROG1, encoding a zinc-finger protein, determines the erect growth habit in rice. Sequencing of 182 varieties of cultivated rice reveals an identical mutation in th...
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Article
Origin of seed shattering in rice (Oryza sativa L.)
A critical evolutionary step during rice domestication was the elimination of seed shattering. Wild rice disperses seeds freely at maturity to guarantee the propagation, while cultivated rice retains seeds on ...
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Article
Identification of a Drought Tolerant Introgression Line Derived from Dongxiang Common Wild Rice (O. rufipogon Griff.)
Construction of introgression lines using cultivated rice as recipient and wild rice is a novel approach to explore primitive and broad genetic resources in rice breeding. We recently generated a set of 159 in...
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Article
Fine map** of a quantitative trait locus for grain number per panicle from wild rice (Oryza rufipogon Griff.)
SIL040, an introgression line (IL) developed by introgressing chromosomal segments from an accession of Oryza rufipogon into an indica cultivar Guichao 2, showed significantly less grains per panicle than the rec...
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Article
Identification and map** of quantitative trait loci controlling cold-tolerance of Chinese common wild rice (O. rufipogon Griff.) at booting to flowering stages
An advanced backcross population of rice was used to identify the quantitative trait locus (QTL) controlling the cold-tolerance at booting to flowering stages. The recipient, Guichao 2 (GC2), was a commercial ...
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Article
Identification and map** of genes for improving yield from Chinese common wild rice (O. rufipogon Griff.) using advanced backcross QTL analysis
To identify useful genes from wild rice which have been lost or weakened in cultivated rice has become more and more important for modern breeding strategy. In this study, a BC4 population derived from 94W1, an a...
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Article
Rice transformation with a senescence-inhibition chimeric gene
A senescence-inhibition chimeric gene containing the specific promoter of SAG12 and IPT gene was transferred into rice with the biolistic method. Results of PCR, Dot blotting and Southern blotting indicated that ...
