26 Result(s)
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Article
Development of introgression lines and map** of qGW2, a novel QTL that confers grain width, in rice (Oryza sativa L.)
Rice grain size is a key determinant of both grain yield and quality. Identification of favorable alleles for use in rice breeding may help to meet the demand for increased yield. In this study, we developed a...
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Article
Open AccessThe Effects of Rf4 and the Genetic Mechanism Behind Fertility Restoration of Wild Abortive Cytoplasmic Male Sterility (WA-CMS) in Japonica Rice (Oryza sativa ssp. Japonica)
Wild abortive-type cytoplasmic male sterility (WA-type CMS) has been exclusively used in hybrid seed production in indica rice cultivars, and fertility restoration in WA-type CMS is controlled by two major restor...
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Article
Precise genetic map** of Rf18(t), a new fertility restorer gene from ‘Nipponbare’ for wild abortive cytoplasmic male sterility in rice (Oryza sativa L.)
We mapped Rf18(t), a Restorer-of-fertility gene for wild abortive cytoplasmic male sterility from the japonica maintainer ‘Nipponbare’, to chromosome 1. The best candidate gene, LOC_Os01g71320, is predicted to en...
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Article
Map** and validation of quantitative trait loci that confer resistance to rice black-streaked dwarf virus disease in rice (Oryza sativa)
Rice black-streaked dwarf virus (RBSDV) disease is one of the most destructive viral diseases that threatens rice production in China. Breeding of resistant cultivars through multi-gene pyramiding is considere...
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Article
Open AccessThe heterotrimeric G protein β subunit RGB1 is required for seedling formation in rice
The heterotrimeric G protein β subunit RGB1 plays an important role in plant growth and development. However, the molecular mechanisms underlying the regulation of rice growth by RGB1 remain elusive.
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Article
Identifying the genes around Rf5 and Rf6 loci for the fertility restoration of WA-type cytoplasmic male sterile japonica rice (Oryza sativa) lines
Wild abortive (WA)-type, Honglian (HL)-type, and Chinsurah Boro II-type cytoplasm are three typical sterile cytoplasms used to generate three-line hybrid rice, and the fertility restorer (Rf) genes are considered...
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Article
Open AccessEvaluation of differential qPE9-1/DEP1 protein domains in rice grain length and weight variation
qPE9–1/DEP1, encoding a G protein γ subunit, has multiple effects on plant architecture, grain size, and yield in rice. The qPE9–1 protein contains an N-terminal G gamma-like (GGL) domain, a putative transmembran...
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Article
Rf4 has minor effects on the fertility restoration of wild abortive-type cytoplasmic male sterile japonica (Oryza sativa) lines
Wild abortive (WA)-type cytoplasmic male sterility (CMS) has been exclusively used for breeding three-line hybrid indica rice, but it has not been applied for generating japonica hybrids because of the difficulti...
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Article
RNAi-mediated resistance to rice black-streaked dwarf virus in transgenic rice
Rice black-streaked dwarf virus (RBSDV), a member of the genus Fijivirus in the family Reoviridae, causes significant economic losses in rice production in China and many other Asian countries. Development of res...
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Article
Open AccessAbility of Rf5 and Rf6 to Restore Fertility of Chinsurah Boro II-type Cytoplasmic Male Sterile Oryza Sativa (ssp. Japonica) Lines
Three-line Oryza sativa (ssp. japonica) hybrids have been developed mainly using Chinsurah Boro II (BT)-type cytoplasmic male sterility (CMS). The Rf1 gene restores the fertility of BT-type CMS lines, and is the ...
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Article
Map** QTLs conferring resistance to rice black-streaked dwarf disease in rice (Oryza sativa L)
Rice black-streaked dwarf disease, caused by the rice black-streaked dwarf virus (RBSDV), can lead to severe yield losses in rice. The deployment of resistant cultivars is an effective disease control measure,...
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Article
Rf5 is able to partially restore fertility to Honglian-type cytoplasmic male sterile japonica rice (Oryza sativa) lines
Three-line japonica hybrids have been developed mainly on Chinsurah Boro II (BT)-type cytoplasmic male sterile (CMS) lines of Oryza sativa L., but the unstable sterility of some BT-type C...
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Article
Genetic dissection of hybrid breakdown in an indica/japonica cross and fine map** of a quantitative trait locus qSF-12 in rice (Oryza sativa L.)
Hybrid breakdown is an important form of post-zygotic reproductive barriers, often arising from hybrid progeny between two varietal groups of Asian cultivated rice (Oryza sativa L.), indica and japonica. However,...
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Article
Identification of quantitative trait loci responsible for rice grain protein content using chromosome segment substitution lines and fine map** of qPC-1 in rice (Oryza sativa L.)
Protein content (PC) in rice endosperm plays an important role in determining rice grain quality. However, the genetic mechanism underlying grain PC remains unclear. In order to better understand the genetic b...
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Article
Identification and fine map** of qPH6, a novel major quantitative trait locus for plant height in rice
Plant height is one of the determinants that influence rice plant architecture and grain yield. Identification of useful novel genes related to plant height is necessary for breeding high-yield rice. In this s...
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Article
Identification and diversity of functional centromere satellites in the wild rice species Oryza brachyantha
The centromere is a key chromosomal component for sister chromatid cohesion and is the site for kinetochore assembly and spindle fiber attachment, allowing each sister chromatid to faithfully segregate to each...
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Article
Hd-q, a novel allele of Ef7 from a Chinese rice landrace, confers weak photoperiod sensitivity and improves local adaptability and yield potential
Heading date is a major determinant of adaptability and yield potential in rice (Oryza sativa L.) and is influenced by photoperiod. Among chromosome segment substitution lines, the introgression line C63 contains...
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Article
Fine map** of a major QTL controlling panicle number in rice
Rice panicle number per plant is a grain yield component that directly influences rice yield. The identification of the genes controlling panicle number will play a vital role in high-yield rice breeding. C307...
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Article
Fine map** and candidate gene analysis of ptgms2-1, the photoperiod-thermo-sensitive genic male sterile gene in rice (Oryza sativa L.)
Photoperiod-thermo-sensitive genic male sterile (PTGMS) rice exhibits a number of desirable traits for hybrid rice production. The cloning genes responsible for PTGMS and those elucidating male sterility mecha...
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Open AccessDevelo** high throughput genotyped chromosome segment substitution lines based on population whole-genome re-sequencing in rice (Oryza sativa L.)
Genetic populations provide the basis for a wide range of genetic and genomic studies and have been widely used in genetic map**, gene discovery and genomics-assisted breeding. Chromosome segment substitutio...
