A5044821064- Genetic Mapping and Diversity in Plants and Animals
- GABA and Rice Research
- Rice Cultivation and Yield Improvement
- Photosynthetic Processes and Mechanisms
- Plant Stress Responses and Tolerance
- Plant Reproductive Biology
- Enzyme Production and Characterization
- Plant responses to water stress
- Biofuel production and bioconversion
- Plant nutrient uptake and metabolism
- CRISPR and Genetic Engineering
- Plant Virus Research Studies
- Plant Molecular Biology Research
- Plant-Microbe Interactions and Immunity
- Plant Micronutrient Interactions and Effects
- Spectroscopy and Chemometric Analyses
- Plant tissue culture and regeneration
- Algal biology and biofuel production
- Genomics and Phylogenetic Studies
- Genetics and Plant Breeding
- Phytochemicals and Antioxidant Activities
- Polysaccharides and Plant Cell Walls
- Protist diversity and phylogeny
- Genetic diversity and population structure
- Plant Genetic and Mutation Studies
China National Hybrid Rice R&D Central Hunan Hybrid Rice Reserch Center
2014-2025
Hunan Academy of Agricultural Sciences
2013-2025
State Key Laboratory of Hybrid Rice
2013-2025
Hunan University
2019-2024
Hunan Rice Research Institute
2019-2023
Hunan Agricultural University
2017-2022
Chinese University of Hong Kong
2009-2016
Rice University
2010-2013
Nitrogen (N) is a major driving force for crop yield improvement, but application of high levels N delays flowering, prolonging maturation and thus increasing the risk losses. Therefore, traits that enable utilization without delaying will be highly desirable breeding. Here, we show OsNRT1.1A (OsNPF6.3), member rice (Oryza sativa) nitrate transporter 1/peptide family, involved in regulating providing target to produce early simultaneously. OsNRT.1A has functionally diverged from previously...
Success of modern agriculture relies heavily on breeding crops with maximal regional adaptability and yield potentials. A major limiting factor for crop cultivation is their flowering time, which strongly regulated by day length (photoperiod) temperature. Here we report identification characterization Days to heading 7 (DTH7), a genetic locus underlying photoperiod sensitivity grain in rice. Map-based cloning reveals that DTH7 encodes pseudo-response regulator protein its expression...
The phytohormone cytokinin (CK) positively regulates the activity and function of shoot apical meristem (SAM), which is a major parameter determining seed production. rice ( Oryza sativa L.) Gn1a / OsCKX2 Grain number 1a Cytokinin oxidase 2 ) gene, encodes oxidase, has been identified as quantitative trait locus contributing to grain improvement in breeding practice. However, molecular mechanism how expression regulated planta remains elusive. Here, we report that zinc finger transcription...
Brown planthopper (BPH) is one of the most destructive insects affecting rice ( Oryza sativa L.) production. Phenylalanine ammonia-lyase (PAL) a key enzyme involved in plant defense against pathogens, but role PAL insect resistance still poorly understood. Here we show that expression majority PALs significantly induced by BPH feeding. Knockdown Os reduces resistance, whereas overexpression OsPAL8 susceptible cultivar enhances its resistance. We found OsPALs mediate to regulating...
Crop yield loss due to soil salinization is an increasing threat agriculture worldwide. Salt stress drastically affects the growth, development, and grain productivity of rice (Oryza sativa L.), improvement tolerance salt a desirable approach for meeting food demand. The main contributors toxicity at global scale are Na+ Cl− ions, which affect up 50% irrigated soils. Plant responses occur organismic, cellular, molecular levels pleiotropic, involving (1) maintenance ionic homeostasis, (2)...
Rice stripe virus (RSV) causes one of the most serious viral diseases rice (Oryza sativa L.), but molecular basis RSV resistance has remained elusive. Here we show that resistant allele STV11 (STV11-R) encodes a sulfotransferase (OsSOT1) catalysing conversion salicylic acid (SA) into sulphonated SA (SSA), whereas gene product encoded by susceptible STV11-S loses this activity. Sequence analyses suggest STV11-R and alleles were predifferentiated in different geographic populations wild rice,...
Understanding the molecular basis of male sterility and developing practical male-sterility systems are essential for heterosis utilization commercial hybrid seed production in crops. Here, we report regulation by genic gene maize 7 (ZmMs7) its application a dominant system multiple species. ZmMs7 is specifically expressed anthers, encodes plant homeodomain (PHD) finger protein that functions as transcriptional activator, plays key role tapetal development pollen exine formation. can...
Abstract Obtaining genetic variation information from indica rice hybrid parents and identification of loci associated with heterosis are important for breeding. Here, we resequence 1,143 accessions mostly selected the superior cultivars China, identify variations, perform kinship analysis. We find different crossing patterns between 3- 2-line lines. By calculating frequencies parental differences (FPVDs), a more direct approach studying heterosis, that linked to which include 98 in 3-line...
Heterosis utilization is the most effective way to improve rice yields. The cytoplasmic male-sterility (CMS) and photoperiod/thermosensitive genic (PTGMS) systems have been widely used in production. However, rate of resource for CMS system hybrid low, seed production PTGMS affected by environment. technical limitations these two breeding methods restrict rapid development rice. advantages (GMS) rice, such as stable sterility free combination, can fill gaps first generations technology. At...
Grain size is one of the essential determinants rice yield. Our previous studies revealed that ethylene plays an important role in grain-size control; however, precise mechanism remains to be determined. Here, we report response factor OsERF115 functions as a key downstream regulator for ethylene-mediated grain development. encodes AP2/ERF-type transcriptional specifically expressed young spikelets and developing caryopses. Overexpression significantly increases length, width, thickness...
The discovery of a wild abortive-type (WA) cytoplasmic male sterile (CMS) line and breeding its restorer have led to the commercialization three-line hybrid rice, contributing considerably global food security. However, molecular mechanisms underlying fertility abortion restoration CMS-WA lines remain largely elusive. In this study, we cloned gene, Rf20, following genome-wide association study analysis core parent rice. We found that Rf20 was present in all parental lines, but different...
Long-term storage of crop seeds is critical for germplasm resource conservation, food supply and sustainable production. As a major food, rice has huge stock production consumption worldwide, while easily losing value seed viability during storage. Thus, understanding the physiological responses molecular mechanisms aging tolerance lays foundation improving storability in rice. This review illustrates current advances influential factors, evaluation methods, identification indexes...
Lysine (Lys) is considered to be the first limiting essential amino acid in rice. Although there have been extensive efforts improve Lys content of rice through traditional breeding and genetic engineering, no satisfactory products achieved date. We expressed a LYSINE-RICH PROTEIN gene (LRP) from Psophocarpus tetragonolobus (L.) DC using an endosperm-specific GLUTELIN1 promoter (GT1) Peiai64S (PA64S), elite photoperiod-thermo sensitive male sterility (PTSMS) line. The expression foreign LRP...
OsNramp5 is a key gene involved in the control of uptake Cd, Mn, and other metal ions by rice root cells. The functional deficiency this can significantly reduce accumulation Cd grains, but effects its mutation on agronomic traits such as yield quality have not been investigated comprehensively yet. In present study, three Huanghuazhan-based mutants [LCH1 (Low Cadmium Huanghuazhan 1), LCH2 2), LCH3 3)] were obtained using clustered regularly interspaced short palindromic...
ABSTRACT Hybrid rice ( Oryza sativa ) generally outperforms its inbred parents in yield and stress tolerance, a phenomenon termed heterosis, but the underlying mechanism is not completely understood. Here, we combined transcriptome, proteome, physiological, heterosis analyses to examine salt response of super hybrid Chaoyou1000 (CY1000). In addition surpassing mean values for two (mid‐parent heterosis), CY1000 exhibited higher reactive oxygen species scavenging ability than both (over‐parent...
Abstract Cold stress is a major factor limiting rice (Oryza sativa L.) productivity, making it crucial to understand the molecular mechanisms underlying responses develop resilient crops. In this study, we characterized OsZOS2-19, cold- and abscisic acid (ABA) -responsive C2H2 zinc finger protein, which functions as transcriptional repressor. Overexpression of OsZOS2-19 in lines increases sensitivity both cold ABA, reducing tolerance, disrupting osmotic balance, impairing reactive oxygen...
Abstract Soil salinity is a destructive environmental factor that inhibits plant growth and crop yield. Applying nitrogen fertilizer practical method to enhance salt tolerance. However, the underlying mechanisms remain largely unknown. Here, we demonstrated NO3−-enhanced tolerance in rice (Oryza sativa L.) seedlings mediated by nitrate reductase (NR)-dependent nitric oxide (NO) production. Seedlings grown condition (N) exhibited much greater compared those ammonium (AN) (A) conditions,...
Abstract Background With an increasing world population and a gradual decline in the amount of arable land, food security remains global challenge. Continued increases rice yield will be required to break through barriers grain output. In order transition from hybrid super-hybrid rice, breeding demands cannot addressed traditional heterosis. Therefore, it is necessary incorporate high loci other genetic groups scientifically utilize intersubspecific heterosis lines. this study, 781 lines...
Significance Rice breeding programs aim to develop cultivars with improved traits, including high grain yield and superior quality. In rice, OsPDCD5 encodes a programmed cell death 5 protein. Targeted mutagenesis of enhanced plant architecture. Statistical analysis indicated that plot knockout lines was by 6.25 20.13% in 11 popular or newly bred rice compared the corresponding wild types. The showed increases milled percentage gel consistency, decrease amylose content. Our results provide...