Two divergent haploid nuclei shaped the landscape of population diversity in wheat stripe rust DOI

Yibo Wang,

Mou Yin,

Fei He

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 15, 2024

Abstract Heterozygosity is a measure of allelic diversity within individuals. Puccinia striiformis f. sp. tritici ( Pst ) highly heterozygous dikaryotic crop pathogen. Its source heterozygosity variation and the contribution to adaptability are still unknown. By analyzing resequencing data 266 worldwide isolates, we found that may have undergone an important historical hybridization event, introducing substantial leading divergence its haploid genomes into two distinct haplotypes. Strains with both haplotypes exhibit higher individual allele wider geographical distribution. Between genomes, 16% genome had diverged, scattered as mosaic blocks genome. These regions enriched genes displaying critical roles during infection plant host, expression levels. In these regions, 8.0 Mb shows recombination fingerprints associated virulence, while 4.9 displays linkage across entire We demonstrated sexual in extensive significant. can gain genetic due intra- inter-species hybridization. Our study resolved debate over sources expands understanding pathogen virulence evolution. findings also suggest interrupting reproduction pathogens be effective strategy for controlling wheat stripe rust.

Language: Английский

Prediction of the potential geographical distribution of Cytospora chrysosperma in Xinjiang, China under climate change scenarios DOI Creative Commons
Quansheng Li,

Cao Shanshan,

Wei Sun

et al.

Frontiers in Forests and Global Change, Journal Year: 2024, Volume and Issue: 7

Published: April 17, 2024

Cytospora canker caused by chrysosperma has a wide range of hazards in Xinjiang, seriously affecting the development Xinjiang’s characteristic forest and fruit industries. Climate change affects distribution fungal species may exacerbate risk diseases such as cytospora canker. The present study was conducted on C. makes predictions potentially suitable area based 133 records points 47 environmental factors. We applied MaxEnt model adjusted Kuenm package for feature class parameters (FC) regularization multipliers (RM) to explore main factors geographical . And then we predicted its spatial pattern centroid trend under three different Representative Concentration Pathways current scenario, 2041–2070, 2071–2,100. results showed that optimal with FC = LQ RM 0.3 had lowest complexity overfitting, very high accuracy, AUC 0.971 ± 0.0019. Considering percent contribution, permutation importance jackknife single-factor response curve, are precipitation seasonality (bio15), aspect cosine (aspectcosine), monthly variability potential evapotranspiration (PETseasonality), mean coldest quarter (PETColdestQuarter), cumulative contribution rate reaching 70.8%. Under climate scenarios, total is 82.35 × 10 4 km 2 , highly 5.49 accounting 6.67% area, primarily located Tacheng, Yili, Changji regions. Meanwhile, transfer analysis indicates tendency migrate towards lower latitudes future climatic conditions. proposed this can be used predict Xinjiang provide guidance prevention control

Language: Английский

Citations

1
Monitoring yellow rust progression during spring critical wheat growth periods using multi‐temporal Sentinel‐2 imagery DOI Open Access
Huiqin Ma, Jingcheng Zhang, Wenjiang Huang

et al.

Pest Management Science, Journal Year: 2024, Volume and Issue: 80(12), P. 6082 - 6095

Published: Aug. 14, 2024

Abstract BACKGROUND Yellow rust ( Puccinia striiformis f. sp. tritici ) is a devastating hazard to wheat production, which poses serious threat yield and food security in the main wheat‐producing areas eastern China. It necessary monitor yellow progression during spring critical growth periods support its prediction by providing timely calibrations for disease models green prevention control. RESULTS Three Sentinel‐2 images three (jointing, heading, filling) were acquired. Spectral, texture, color features all extracted each period disease. Then period‐specific feature sets obtained. Given differences field epidemic status periods, period‐targeted monitoring established map damage track spatiotemporal change. The models' performance was then validated based on truth data (87 jointing period, 183 heading 155 filling period). validation results revealed that representation of our model group realistic credible. overall accuracy healthy diseased pixel classification at reached 87.4%, coefficient determination R 2 index regression 0.77 (heading period) 0.76 (filling model‐group‐result‐based change detection across entire study area proportions conforming expected development pattern jointing‐to‐heading heading‐to‐filling 98.2% 84.4% respectively. CONCLUSIONS Our jointing, overcomes limitations most existing only single‐phase remote sensing information. performs well revealing spring, can update trends optimize management, provide basis correct model. © 2024 Society Chemical Industry.

Language: Английский

Citations

1
Wheat Stripe Rust Inoculum from the Southwest Dispersed to the East Huang-Huai-Hai Region through Southern Anhui in China DOI
Liang Huang, Wuchao Zhao, Chongjing Xia

et al.

Plant Disease, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 25, 2024

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 wheat-producing regions further reveal spread patterns pathogens China. The findings indicated an overall trend dissemination from west east. primarily northwestern region Huang-Huai-Hai through Guanzhong Plain NanXiang Plain. Meanwhile, also eastward southwestern lower reaches Yangtze River, using Jianghan as bridge River Valley Anhui main pathway. Furthermore, northward into Shandong under driving force southeast winds. this may provide integrated management

Language: Английский

Citations

1
New insights into mycotoxin risk management through fungal population genetics and genomics DOI

Toan Bao Hung Nguyen,

Marie Foulongne‐Oriol, Jean‐Luc Jany

et al.

Critical Reviews in Microbiology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 22

Published: Aug. 26, 2024

Mycotoxin contamination of food and feed is a major global concern. Chronic or acute dietary exposure to contaminated can negatively affect both human animal health. Contamination occurs through plant infection by toxigenic fungi, primarily Aspergillus Fusarium spp., either before after harvest. Despite the application various management strategies, controlling these pathogens remains challenge because their ability adapt environmental changes selection pressures. Understanding genetic structure pathogen populations pivotal for gaining new insights into biology epidemiology, as well understanding mechanisms behind adaptability. Such deeper crucial developing effective preemptive strategies tailored evolving nature pathogenic populations. This review focuses on population-level variations within two most economically significant fungal genera according space, host, pathogenicity. Outcomes in terms migration patterns, gene flow populations, mating abilities, potential host jumps are examined. We also discuss yet often underutilized applications population genetics genomics address practical challenges epidemiology disease control fungi.

Language: Английский

Citations

1
Differences in the Virulence Between Local Populations of Puccinia striiformis f. sp. tritici in Southwest China DOI Creative Commons
Fang Yang, Yunjing Wang, Zhiying Ji

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(20), P. 2902 - 2902

Published: Oct. 17, 2024

The virulence analysis of

Language: Английский

Citations

1
Dynamics of Puccinia striiformis f. sp. tritici Urediniospores in Longnan, a Critical Oversummering Region of China DOI

Xuemin Hu,

Songping Fu,

Yuxiang Li

et al.

Plant Disease, Journal Year: 2023, Volume and Issue: 107(10), P. 3155 - 3163

Published: May 10, 2023

Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici Erikss. (Pst), is a devastating disease resulting in yield reduction. Because the temperature limits overwintering and oversummering of Pst, it cannot complete whole year cycle most areas China. Longnan, located southeast Gansu Province, one annual which can supply urediniospores autumn to eastern wheat-growing In this study, TaqMan real-time quantitative PCR (TaqMan-qPCR) detection system for Pst was established, limit single urediniospore. The dynamics Longnan were monitored spore trapping TaqMan-qPCR 3 years. Meanwhile, meteorological conditions including air temperature, relative humidity, precipitation recorded. Results showed that be captured from March December, two peaks urediniospore density appeared May June, respectively. closely related June. addition, we found had peak value when average 10 21°C, humidity 60 85% exponential model could describe variation based on It worth mentioning 7 days before capture has great advantage predicting air. This study laid foundation establishment prediction wheat rust factors.

Language: Английский

Citations

3
Identification of a Locus for High-Temperature Adult-Plant Resistance to Stripe Rust in the Wheat Yr8 Near-Isogenic Line Through Mutagenesis and Molecular Mapping DOI
Yuxiang Li, Meinan Wang, Xiaoping Hu

et al.

Plant Disease, Journal Year: 2023, Volume and Issue: 108(5), P. 1261 - 1269

Published: Nov. 8, 2023

Aegilops species are wheat relatives that harbor valuable disease resistance genes for breeding. The Yr8 near-isogenic line AvSYr8NIL has long been believed to carry only race-specific all-stage stripe rust, caused by Puccinia striiformis f. sp. tritici, derived from comosa. However, found have high-temperature adult-plant (HTAP) in our field and greenhouse tests. To confirm both HTAP resistance, seeds were treated with ethyl methanesulfonate generate mutant lines. lines (M641) (M488) crossed the susceptible recurrent parent Avocet S (AvS). F1 F4 of AvS/M641 phenotyped Yr8-avirulent races seedling stage at low-temperature (4 20°C) profile, while F1, F2, F4, F5 AvS/M488 Yr8-virulent (10 30°C) profile. Both gene (YrM488) recessive. populations genotyped using polymorphic Kompetitive allele-specific PCR markers converted single-nucleotide polymorphisms. was mapped a 0.66-cM fragment, YrM488 1.22-cM interval on chromosome 2D. physical distance between two estimated be more than 500 Mb, indicating their distinct loci. separated would useful enhancing understanding different types further studying interactions rust pathogen.

Language: Английский

Citations

2
Dynamic of Puccinia Striiformis F. Sp. Tritici Urediniospore and its Correlation with Wheat Stripe Rust Epidemics in Xiangyang of China DOI

Xuemin Hu,

Yuxiang Li, Fuhua Chen

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

0
Impact of novel methods and research approaches in plant pathology: Are individual advances sufficient to meet the wider challenges of disease management? DOI
Michael Jeger, R.M. Beresford, Anna Berlin

et al.

Plant Pathology, Journal Year: 2024, Volume and Issue: 73(7), P. 1629 - 1655

Published: May 29, 2024

Abstract Advances continue to be made by plant pathologists on topics in health, environmental protection and food security. Many advances have been for individual crops, pathogens diseases that many cases led their successful management. A wider impact of research depends recognition the multifaceted challenges posed need integrate studies a systems level approach. The adoption high‐throughput sequencing diagnosis detection is widespread but upon agricultural ecological context combined with improved surveillance. Deployment host resistance field needs aligned greater appreciation genetic diversity complementary contribution tolerance disease. Epidemiological understanding spatiotemporal spread has through population dynamic analyses. Research emphasis microbiome invigorated soil microbial studies, especially disease complexes declines, challenge move interventions benefit health. Analysis impacts climate change single‐crop seldom these placed pathogen adaptation, new wild plants, vectors microbes. informatic analysis illustrate not only global introductions, also inherent marshalling integrating information. applying artificial intelligence technologies across areas pathology yet integrated within any coordinated agenda.

Language: Английский

Citations

0
Unraveling the genetic architecture of stripe rust resistance in ICARDA spring wheat DOI Creative Commons
Elias Shewabez, Laura Mugnai, Wuletaw Tadesse

et al.

Plant Gene, Journal Year: 2024, Volume and Issue: unknown, P. 100478 - 100478

Published: Nov. 1, 2024

Language: Английский

Citations

0