A5015714490- Genetic Mapping and Diversity in Plants and Animals
- GABA and Rice Research
- Plant Molecular Biology Research
- Rice Cultivation and Yield Improvement
- Plant Reproductive Biology
- Plant Disease Resistance and Genetics
- Plant Genetic and Mutation Studies
- Plant-Microbe Interactions and Immunity
- Plant responses to water stress
- Plant nutrient uptake and metabolism
- Plant Gene Expression Analysis
- Polysaccharides and Plant Cell Walls
- Plant Pathogenic Bacteria Studies
- Photosynthetic Processes and Mechanisms
- Plant Stress Responses and Tolerance
- Plant Taxonomy and Phylogenetics
- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Plant tissue culture and regeneration
- Antiplatelet Therapy and Cardiovascular Diseases
- Legume Nitrogen Fixing Symbiosis
- Leaf Properties and Growth Measurement
- Zeolite Catalysis and Synthesis
- Studies on Chitinases and Chitosanases
- Silicon Effects in Agriculture
Southwest University
2016-2025
Rice Research Institute
2016-2025
North China University of Science and Technology
2021
Chongqing Academy of Agricultural Sciences
2020
Institute of Genetics and Developmental Biology
2017
Chinese Academy of Sciences
2017
Hefei University of Technology
2012
Chinese PLA General Hospital
2011
Sichuan Academy of Agricultural Sciences
2007
National Chung Hsing University
1997
The control of floral organ identity by homeotic MADS box genes is well established in eudicots. However, grasses have highly specialized outer organs, and the identities that regulate organs remain unclear. In this study, we characterized a MIKC-type gene, CHIMERIC FLORAL ORGANS (CFO1), which plays key role regulation rice (Oryza sativa). cfo1 mutant displayed defective marginal regions palea, chimeric ectopic organs. Map-based cloning demonstrated CFO1 encoded OsMADS32 protein....
Abstract The spikelet is a unique inflorescence structure of grass. molecular mechanism that controls the development remains unclear. In this study, we identified rice (Oryza sativa) mutant, multi-floret spikelet1 (mfs1), showed delayed transformation meristems to floral meristems, which resulted in an extra hull-like organ and elongated rachilla. addition, sterile lemma was homeotically converted rudimentary glume body palea degenerated mfs1. These results suggest MULTI-FLORET SPIKELET1...
Significance In cereal crops, the number of florets in a spikelet is an important factor affecting grain per panicle and then yield. wild-type rice, one produces fertile floret. This study characterized gain-of-function mutant lateral 1 ( lf1 ) rice. , developed with proper floral organ identities axil sterile lemma, showing that rice has potential to restore “three-florets spikelet” which may have existed ancestors. Therefore, it provides strong evidence supporting three-florets hypothesis...
As an important agronomic trait, leaf rolling in rice (Oryza sativa L.) has attracted much attention from plant biologists and breeders. Moderate increases the amount of photosynthesis cultivars hence raises grain yield. Here, we describe map-based cloning gene RL14, which was found to encode a 2OG-Fe (II) oxygenase unknown function. rl14 mutant plants had incurved leaves because shrinkage bulliform cells on adaxial side. In addition, displayed smaller stomatal complexes decreased...
To understand the molecular mechanisms of rice aerial organ development, we identified a mutant gene that caused significant decrease in width organs, termed ABNORMAL VASCULAR BUNDLES (AVB). Histological analysis showed slender organs were by cell number reduction. In avb, vascular bundles was reduced, whereas area increased. Ploidy and situ expression patterns histone H4 confirmed proliferation impaired during lateral primordia procambium cells greater ability to undergo division avb. RNA...
Summary Nucleotide‐binding site–leucine‐rich repeat (NB‐LRR) resistance proteins are critical for plant to pathogens; however, their mechanism of activation and signal transduction is still not well understood. We identified a mutation in an as yet uncharacterized rice coiled‐coil (CC)‐NB‐LRR, Oryza sativa RPM1‐like gene 1 ( OsRLR1 ), which leads hypersensitive response (HR)‐like lesions on the leaf blade broad‐range fungal pathogen Pyricularia oryzae (syn. Magnaporthe ) bacterial...
The spikelet is an inflorescence structure unique to grasses. molecular mechanisms underlying development and evolution are unclear. In this study, we characterized three allelic recessive mutants in rice (Oryza sativa): nonstop glumes 1-1 (nsg1-1), nsg1-2, nsg1-3. these mutants, organs such as the rudimentary glume, sterile lemma, palea, lodicule, filament were elongated and/or widened, or transformed into lemma- marginal region of palea–like organs. NSG1 encoded a member C2H2 zinc finger...
SUMMARY LHC assembly is a fundamental process in forming peripheral antenna system, which has significant impact on photosynthesis. However, the molecular mechanism of still needs to be further investigated monocotyledonous plants. Here, we identified bifunctional protein YGL9 rice, homolog cpSRP43 Arabidopsis , mediates by simultaneously regulating LHCPs transport and chlorophyll synthesis. Mutation exhibits yellow‐green leaf phenotype, with reduced contents, impaired photosystem activity...
Identifying quantitative trait loci (QTL) for yield traits using single-segment substitution lines (SSSL) is essential both targeted breeding and functional analysis of key genes. Here, a wide-grain rice chromosome segment line (CSSL), Z708, carrying four segments from Jinhui35 in the genetic background Xihui18, was used to identify QTL associated with grain size. Seven yield-related ( qGW4 , qRLW4 qGWT4 qGW5 qRLW5 qGWT5 qGPP5 ) were identified on fourth fifth chromosomes Z708. Subsequently,...
Rice chromosome segment substitution lines (CSSLs) are ideal for creating natural variation and dissecting complex quantitative traits. In addition, it builds a bridge molecular breeding accurate identification of trait loci (QTLs). this study, to construct an indica rice library single-segment (SSSLs) spanning the whole genome, CSSL-Z691 carrying four segments (4.07 Mb average length) was identified by marker-assisted selection (MAS) from restorer line “Jinhui35” in “Xihui18” genetic...
Abstract Background Grain size affects not only rice yield but is also an important element in quality of appearance. However, the mechanism for inheritance grain unclear. Results A chromosome segment substitution line Z1392, which harbors three segments and produces grains increased length, was identified. The were located on chromosomes 1, 5, 6, average length 3.17 Mb. Cytological analysis indicates that predominant cause Z1392 could be cell expansion glumes. Seven quantitative trait loci...
The patterning of adaxial-abaxial tissues plays a vital role in the morphology lateral organs, which is maintained by antagonism between genes that specify adaxial and abaxial tissue identity. homeo-domain leucine zipper class III (HD-ZIP III) family regulate identity; however, little information known about physical interactions or transcriptionally regulated downstream HD-ZIP III. In this study, we identified dominant rice mutant, floret 1 (lf1), has defects organ polarity. LF1 encodes...
Abstract Leaf morphology is one of the most important features ideal plant architecture. However, genetic and molecular mechanisms controlling this feature in crops remain largely unknown. Here, we characterized rice (Oryza sativa) wide leaf 1 (wl1) mutant, which has wider leaves than wild-type due to more vascular bundles greater distance between small bundles. WL1 encodes a Cys-2/His-2-type zinc finger protein that interacts with Tillering Dwarf (TAD1), co-activator anaphase-promoting...
A dynamically rolled leaf mutant (rl10) was identified from a spontaneous mutation in an Oryza sativa L. subsp. indica line, II-32B. The chlorophyll content of rl10 is higher than that the wild type. Genetic analysis using 3 F2 segregating populations derived crosses between and rice lines Mian5B, II-32B, D62B, respectively, confirmed trait controlled by single recessive gene. Of 719 SSR primer pairs showed polymorphism D62B rl10, 151 were adopted to map RL10(t) gene population cross x which...
Abstract Background Chromosome segment substitution lines (CSSLs) can be used to dissect complex traits, from which single-segment (SSSLs) containing a target quantitative trait loci (QTL) developed, and they are thus important for functional analysis molecular breeding. Results A rice line with short wide grains, CSSL-Z563, was isolated advanced-generation backcross population (BC 3 F 6 ) derived ‘Xihui 18’ (the recipient parent) ‘Huhan 3’ donor parent). Z563 carried seven segments 3’,...
Leaves and glumes act as lateral organs have essential effects on photosynthesis seed morphology, thus affecting yield. However, the molecular mechanisms controlling their polarity development in rice is still worth further analysis. Here, we isolated a defect of 1 (pdl1) mutant rice, which exhibits twisted/filamentous-shaped leaves cracked/filamentous-shaped lemmas caused by defects development. PDL1 encodes SUPPRESSOR OF GENE SILENCING 3 protein localized cytoplasm granules. expressed...
Plants have evolved a sophisticated two-branch defence system to prevent the growth and spread of pathogen infection. The novel Cys-rich repeat (CRR) containing receptor-like kinases, known as CRKs, were reported mediate resistance in plants. For rice, there are only two reports CRKs. A semi-dominant lesion mimic mutant als1 (apoptosis leaf sheath 1) rice was identified demonstrate spontaneous lesions on blade sheath. map-based cloning strategy used for fine mapping ALS1, which confirmed be...
The exocyst is a key factor in vesicle transport and involved cell secretion, growth, division other cytological processes eukaryotes. EXO70 the subunit. We obtained gene, SHORT-ROOT 1 (SR1), through map-based cloning genetic complementation. SR1 conserved protein with an domain plants. mutation affected whole root-development process: producing shorter radicles, adventitious roots lateral roots, demonstrating abnormal xylem development, resulting dwarfing reduced water potential moisture...
A chromosome segment substitution line (CSSL) is a powerful tool for combining quantitative trait locus (QTL) mapping with the pyramiding of desirable alleles. The rice CSSL Z1364 increased kernel number was identified in BC3F8 population derived from cross Nipponbare as recipient Xihui 18 donor parent. carried three segments distributed on chromosomes 1, 6, and 8. mean length 1.19 Mb. Of 17 QTL segments, qSP1 spikelets per panicle, qSSD1 seed-set density, qNSB1 secondary branches explained...