A5101653899- Genetic Mapping and Diversity in Plants and Animals
- Plant Molecular Biology Research
- Chromosomal and Genetic Variations
- Oil Palm Production and Sustainability
- Plant-Microbe Interactions and Immunity
- Genetic and phenotypic traits in livestock
- Photosynthetic Processes and Mechanisms
- Silkworms and Sericulture Research
- Plant Disease Resistance and Genetics
- Plant Gene Expression Analysis
- Plant nutrient uptake and metabolism
- Plant Reproductive Biology
- GABA and Rice Research
- Genetics and Plant Breeding
- Rice Cultivation and Yield Improvement
- RNA modifications and cancer
- Plant Genetic and Mutation Studies
- Bioenergy crop production and management
- Light effects on plants
- Plant Pathogenic Bacteria Studies
- Genomics and Chromatin Dynamics
- Plant biochemistry and biosynthesis
- Plant tissue culture and regeneration
- Bioinformatics and Genomic Networks
- Radiomics and Machine Learning in Medical Imaging
King Center
2024
Peking University
2013-2024
Center for Life Sciences
2015-2024
China National Petroleum Corporation (China)
2024
State Key Laboratory of Protein and Plant Gene Research
2024
Guangzhou Medical University
2023
Second Affiliated Hospital of Guangzhou Medical University
2023
Yale University
2010-2014
Sichuan University
2012
National Institute of Biological Sciences, Beijing
2008-2010
Abstract The behavior of transcriptomes and epigenomes in hybrids heterotic parents is fundamental interest. Here, we report highly integrated maps the epigenome, mRNA, small RNA two rice (Oryza sativa) subspecies their reciprocal hybrids. We found that gene activity was correlated with DNA methylation both active repressive histone modifications transcribed regions. Differential epigenetic changes transcript levels among parental lines. Distinct patterns expression were observed. Through...
Abstract Maize (Zea mays) has an exceptionally complex genome with a rich history in both epigenetics and evolution. We report genomic landscapes of representative epigenetic modifications their relationships to mRNA small RNA (smRNA) transcriptomes maize shoots roots. The patterns differed dramatically between genes transposable elements, two repressive marks (H3K27me3 DNA methylation) were usually mutually exclusive. found organ-specific distribution canonical microRNAs (miRNAs) endogenous...
Heterosis is a fundamental biological phenomenon characterized by the superior performance of hybrid over its parents in many traits, but underlying molecular basis remains elusive. To investigate whether DNA methylation plays role heterosis, we compared at single-base-pair resolution methylomes Arabidopsis thaliana Landsberg erecta and C24 parental lines their reciprocal F1 hybrids that exhibited heterosis. Both displayed increased across entire genomes, especially transposable elements....
Abstract Phytochrome A (phyA) is the primary photoreceptor responsible for perceiving and mediating various responses to far-red light in Arabidopsis thaliana. FAR-RED ELONGATED HYPOCOTYL1 (FHY1) its homolog FHY1-LIKE (FHL) are two small plant-specific proteins essential light-regulated phyA nuclear accumulation subsequent signaling processes. FHY3 IMPAIRED RESPONSE1 (FAR1) transposase-derived transcription factors that directly activate FHY1/FHL thus mediate responses. Here, we report...
Abstract Heterosis, the phenotypic superiority of a hybrid over its parents, has been demonstrated for many traits in Arabidopsis thaliana , but effect on defence remains largely unexplored. Here, we show that hybrids between some A. accessions increased resistance to biotrophic bacterial pathogen Pseudomonas syringae pv. tomato ( Pst ) DC3000. Comparisons transcriptomes these and their parents after inoculation reveal several key salicylic acid (SA) biosynthesis genes are significantly...
Recent genome-wide studies suggested that in addition to genetic variations, epigenetic variations may also be associated with differential gene expression and growth vigor plant hybrids. Maize is an ideal model system for the study of hybrids given significant heterotic performance, well-known complexity genome, rich history studies. However, integrated comparative transcriptomic epigenomic analyses different organs maize remain largely unexplored.Here, we generated maps transcriptomes...
By constructing nearly isogenic lines (NILs) that differ only at a single quantitative trait locus (QTL), we fine-mapped the yield-improving QTL qGY2–1 to 102.9-kb region on rice chromosome 2. Comparison analysis of genomic sequences in mapped between donor (Dongxiang wild rice, Oryza rufipogon Griff.) and recurrent (Guichao2, sativa ssp. indica ) parents used for development NILs identified haplotypes leucine-rich repeat receptor kinase gene cluster, which showed extensive allelic...
Heterosis is most frequently manifested by the substantially increased vigorous growth of hybrids compared with their parents. Investigating genomic variations in natural populations essential to understand initial molecular mechanisms underlying heterosis plants. Here, we characterized architecture associated biomass 200 Arabidopsis hybrids. The genome-wide heterozygosity makes a limited contribution heterosis, and no locus shows an obvious overdominance effect However, accumulation...
The successful application of heterosis in hybrid rice has dramatically improved productivity, but the genetic mechanism for remains unclear. In this study, we generated two populations F 1 hybrids with present-day commercial parents, genotyped parents 50k SNP chip and genome resequencing, recorded phenotype ∼2,000 at three field trials. By integrating these data collected genotypes ∼4,200 landraces varieties that were reported previously, found male female have different levels...
The mechanisms underlying heterosis have long remained a matter of debate, despite its agricultural importance. How changes in transcriptional networks during plant development are relevant to the continuous manifestation growth vigor hybrids is intriguing and unexplored. Here, we present an integrated high-resolution analysis daily dynamic phenotypes transcriptome atlases young Arabidopsis seedlings (parental ecotypes [Col-0 Per-1] their F1 hybrid). Weighted gene coexpression network...
Heterosis, a universal phenomenon in nature, mainly reflected the superior productivity, quality, and fitness of F
Organ size in plants is controlled by the interaction between genotype and environment. Seed size, an important agronomic trait, largely determines yield focus of research. However, genetic components underpinning natural variation seed undomesticated species remain unidentified. Here we report a genome-wide association study (GWAS) Arabidopsis thaliana, which identified 38 significantly associated loci, including one locus with CYCB1;4. Natural variations CYCB1;4, encodes cyclin protein...
In rice (Oryza sativa L.), the number of panicles, spikelets per panicle and grain weight are important components yield. These characteristics controlled by quantitative trait loci (QTLs) derived from variation inherent in crops. As a result complex genetic basis these traits, only few genes involved their control have been cloned characterized. We previously map-cloned gene cluster including eight leucine-rich repeat receptor-like kinase (LRK) Dongxiang wild rufipogon Griff.), which...
Abstract Plant immunity frequently incurs growth penalties, which known as the trade-off between and growth. Heterosis, phenotypic superiority of a hybrid over its parents, has been demonstrated for many traits but rarely disease resistance. Here, we report that central circadian oscillator, CCA1 , confers heterosis bacterial defense in hybrids without vigor costs, it even significantly enhances under pathogen infection. The genetic perturbation abrogated both hybrids. Upon attack,...
Heterosis, or hybrid vigor, is the phenomenon whereby progeny of two inbred lines exhibit superior agronomic performance compared with either parent. We analyzed expression miRNAs and highly expressed small RNAs (defined according to Solexa sequencing results) in rice (Oryza sativa) subspecies (japonica cv. Nipponbare indica 93-11) their reciprocal hybrids using microarrays. found that all 1141 tested, 140 (12%, 1141) 157 (13%, were identified being significantly differentially hybrids,...
When attacked by pathogens, plants need to reallocate energy from growth defense fend off the invaders, frequently incurring penalties. This phenomenon is known as growth-defense tradeoff and orchestrated a hardwired transcriptional network. Altering key factors involved in this network has potential increase disease resistance without or yield loss, but mechanisms underlying such changes require further investigation. By conducting genome-wide association study (GWAS) of leaves infected...
Heterosis, or hybrid vigor, is a general phenomenon in biology. Harvest of heterosis has been succeeded number crop species. Hybrid rice was first adapted China large scale the middle 1970s, and two generations seed production technology based on distinct male sterility mutations have employed. New systems reported lately using modern biotechnology molecular design, which may lead to new era practice.
Breeding rubber tree seedling with growth heterosis is vital for natural production. It the prerequisites effectively utilizing to elucidate its molecular mechanisms, but mechanisms remain poorly understood in tree. To heterosis, we conducted comparative transcriptomic analyses between two hybrids and their parents.By identifying comparing differently expressed genes (DEGs), found that (BT 3410 WC 11) show significantly differential expression profiles from parents (PR 107 RRIM 600). In BT...