A5015072928- Wheat and Barley Genetics and Pathology
- Yeasts and Rust Fungi Studies
- Plant Disease Resistance and Genetics
- Genetic Mapping and Diversity in Plants and Animals
- Plant Pathogens and Resistance
- Bioenergy crop production and management
- Plant Molecular Biology Research
- Genetics and Plant Breeding
- Mycotoxins in Agriculture and Food
- Plant responses to elevated CO2
- Plant tissue culture and regeneration
- Plant Reproductive Biology
- Genomics and Phylogenetic Studies
- Plant Water Relations and Carbon Dynamics
- Animal Ecology and Behavior Studies
- Plant pathogens and resistance mechanisms
- Genomics and Chromatin Dynamics
- Plant nutrient uptake and metabolism
Institute of Plant Protection
2020-2024
Southwest University of Science and Technology
2019-2024
Chinese Academy of Agricultural Sciences
2020-2023
Ministry of Agriculture and Rural Affairs
2022-2023
Washington State University
2016-2022
Quality Research
2017
United States Department of Agriculture
2016-2017
Agricultural Research Service
2017
Hunan University
2017
Sichuan Agricultural University
2016
Abstract The complex and dynamic three-dimensional organization of chromatin within the nucleus makes understanding control gene expression challenging, but also opens up possible ways to epigenetically modulate expression. Because plants are sessile, they evolved sophisticated rapidly in response environmental stress, that thought be coordinated by changes conformation mediate specific cellular physiological responses. However, what extent how stress induces reorganization remains poorly...
Puccinia striiformis causes stripe rust on wheat, barley, and grasses. Natural population studies have indicated that somatic recombination plays a possible role in P. variation. To determine whether can occur, susceptible wheat or barley plants were inoculated with mixed urediniospores of paired isolates striiformis. Progeny selected by passing through series inoculations genotypes. Potential recombinant compared the parental set 18 12 genotypes are used to differentiate races f. sp....
Plant fungal pathogens can rapidly evolve and adapt to new environmental conditions in response sudden changes of host populations agro-ecosystems. However, the genomic basis their adaptation, especially at forma specialis level, remains unclear. We sequenced two isolates each representing Puccinia striiformis f. sp. tritici (Pst) P. hordei (Psh), different formae speciales stripe rust fungus highly adapted wheat barley, respectively. The divergence Pst Psh, estimated start 8.12 million...
Abstract Background The stripe rust pathogen, Puccinia striiformis f. sp. tritici ( Pst ), threats world wheat production. Resistance to is often overcome by pathogen virulence changes, but the mechanisms of variation are not clearly understood. To determine role mutation in previous studies 30 mutant isolates were developed from a least virulent isolate using ethyl methanesulfonate (EMS) mutagenesis and phenotyped for changes. progenitor was sequenced, assembled annotated establishing...
Puccinia striiformis f. sp. tritici, the wheat stripe rust pathogen, is a dikaryotic, biotrophic, and macrocyclic fungus. Genetic study of P. tritici virulence was not possible until recent discovery Berberis spp. Mahonia as alternate hosts. To determine inheritance map genes, segregating population 119 isolates developed by self-fertilizing isolate 08-220 (race PSTv-11) on barberry leaves under controlled greenhouse conditions. The progeny were phenotyped set 29 lines with single genes for...
Stripe (yellow) rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive diseases wheat worldwide. Planting resistant cultivars an effective way to control this disease, but race-specific resistance can be overcome quickly due rapid evolving Pst population. Studying pathogenicity mechanisms critical for understanding how virulence changes and develop with durable stripe rust. We re-sequenced 7 isolates included additional previously sequenced represent...
Puccinia striiformis f. sp. tritici, the causal agent of wheat stripe (yellow) rust, is an obligate, biotrophic fungus. It was difficult to study genetics pathogen due lack sexual reproduction. The recent discovery alternate hosts for P. tritici makes it possible inheritance and map genes involved in its interaction with plant hosts. To identify avirulence (Avr) we developed a segregating population by selfing isolate 12-368 on barberry (Berberis vulgaris) plants under controlled conditions....
Stripe rust caused by Puccinia striiformis is a disastrous disease of cereal crops and various grasses. To date, 14 stripe genomes are publicly available, including 13 P. f. sp. tritici 1 hordei. In this study, one isolate (11-281) collected from wheatgrass (Agropyron cristatum), which avirulent to most standard differential genotypes wheat barley, was sequenced, assembled, annotated. The sequences were assembled draft genome 84.75 Mb, comparable with previously sequenced hordei isolates....
Long-distance dispersal of plant pathogens in the air can establish diseases other areas and lead to an increased risk large-scale epidemics. Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one most destructive wheat China. Hubei important overwintering region for Pst China, this a determinant rust severity eastern In 2017, disease pandemic resulted great yield losses wheat. To explain pandemic, total 595 single-lesion samples were collected spring, including 204...
Puccinia striiformis f. sp. tritici causes devastating stripe (yellow) rust on wheat and P. hordei barley. Several genomes are available, but no genome is available. More of needed to understand the evolution molecular mechanisms their pathogenicity. We sequenced isolate 93-210 93TX-2, using PacBio Illumina technologies RNA sequencing. Their genomic sequences were assembled contigs with high continuity showed significant structural differences. The circular mitochondria both complete. These...
Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a devastating disease of wheat (Triticum aestivum) in the United States. The fungal pathogen can rapidly evolve, producing new virulent races infecting previously resistant cultivars and genotypes adapting to different environments. objective this study was investigate long-term population dynamics P. tritici Through genotyping 1,083 isolates taken from 1968 2009, using 14 simple sequence repeat (SSR) markers 92 secreted protein...
The folding and dynamics of three-dimensional (3D) genome organization are fundamental for eukaryotes executing functions but have been largely unexplored in nonmodel fungi. Using high-throughput sequencing coupled with chromosome conformation capture (Hi-C) data, we generated two chromosome-level assemblies Puccinia striiformis f. sp. tritici, a fungus causing stripe rust disease on wheat, studying 3D architectures plant pathogenic chromatin the followed combination fractal globule model...
Puccinia striiformis f. sp.tritici (Pst) is one of the pathogenic fungi on wheat, caused stripe rust that a great threat for wheat production all over world.Intensive efforts have been made to study genetics resistance this disease, but few avirulence pathogen due mainly nature obligate biotrophism and lack systems studying its molecular manipulations.To overcome these limitations, natural Pst population comprising 352 isolates representative diverse virulence spectrum was genotyped using 97...
Wheat gene Yr39 confers durable high-temperature adult-plant (HTAP) resistance to stripe rust caused by Puccinia striiformis f. sp. tritici, one of the most destructive diseases wheat worldwide. The objective this study was transfer into four Chinese elite cultivars. Backcross inbred line populations were developed from cultivars Chuanmai 42 (CM42), Bainong Aikang 58 (AK58), Han 6172 (H6172) and Zhengmai 9023 (ZM9023) crossed with a single-gene line. F1, BC1F1 BC1F6 lines genotyped using...
Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a continuous threat to global wheat production. In 2021, the epidemic of stripe rust in China affected approximately 4.5 million hectares, resulting severe yield losses. When confronted with epidemic, tracing sources pathogen can offer valuable insights for disease prevention and control. This study was conducted analyze genetic structure, aerodynamics, geographical features, cultivation practices population various...
Abstract Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important cereal fungal disease worldwide, including in the major wheat‐producing areas China. In 2019, there was a widespread epidemic of middle and lower reaches Yangtze River (MLRYR) area, Zhejiang, Jiangsu, Anhui Guangxi. However, north‐western China, postulated inoculum source MLRYR, occurred mildly. Therefore, origin Pst for MLRYR still open question. To address it, we collected 210 uredinium samples...
In flowering plants, the inflorescence meristem (IM) provides founder cells to form successive floral meristems, which are precursors of fruits and seeds. The activity developmental progression IM thus critical for yield production in seed crops. some cereals, such as rice (Oryza sativa) maize (Zea mays), size undifferentiated IM, is located at apex, positively associated with traits spikelet number. However, relationship between yield-related spike remains unknown Triticeae tribe. Here we...
Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) is a destructive disease that occurs throughout the major wheat-growing regions of world. This pathogen highly variable due to capacity virulent races undergo rapid changes in order circumvent resistance wheat cultivars and genotypes adapt different environments. Intensive efforts have been made study genetics this disease; however, no known avirulence genes molecularly identified Pst so far. To identify molecular markers for...
Abstract Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), significantly impacts global wheat production, including China. Monitoring Pst virulence is crucial for disease management. This study used 18 Yr single‐gene isogenic lines of to characterize the 2023 collections in A total 103 isolates were collected from 11 provinces, and 61 races identified. Frequencies genes varied 0% 95.1%, with low frequencies (defined as less than 10%) Yr85 (7.8%) Yr10 (8.7%); moderate...
Abstract Plant pathogens can quickly evolve in response to the changing host and environment, resulting destructive epidemics. The fungus Puccinia striiformis f. sp. tritici ( Pst ), causing wheat stripe rust disease worldwide, is one such pathogen. In arms race between hosts, changes populations exerted continuous selective forces on dynamics of pathogens. However, footprints these selection demography remain poorly explored, limited our understanding evolutionary processes that shape...
Abstract Wheat stripe rust is one of the diseases that seriously affect wheat production worldwide. Breeding resistant cultivars an effective measure to control this disease. The resistance gene Yr62 has high-temperature adult-plant (HTAP). In study, PI 660060, a single line containing , was crossed with four Chinese cultivars, namely, LunXuan987 (LX987), Bainongaikang58 (AK58), ZhengMai9023 (ZM9023) and HanMai6172 (H6172). F 1 seeds cross combinations were harvested self-crossed in field....