ArticleBMC evolutionary biology2019
Virulence structure and its genetic diversity analyses of Blumeria graminis f. sp. tritici isolates in China.
Article in BMC evolutionary biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Agronomic Performance and Dual Resistance Evaluation to Powdery Mildew and Stripe Rust in 660 Wheat Germplasm Lines.Plants (Basel, Switzerland) · 2026Article
- Global Population Structure and Dynamics of Wheat Powdery Mildew.Molecular ecology · 2026Article
- Deciphering a pathogen's evolution: a two-decade longitudinal study reveals virulence shifts and identifies durable Pm genes against Himalayan Blumeria graminis f. sp. tritici populations.Stress biology · 2026Article
- Development and characterization of small translocations between the Pm13 introgression from Aegilops longissima and wheat homoeologous A, B and D chromosomes.BMC plant biology · 2025Article
- Genome and transcriptome analysis of Chinese wheat powdery mildew isolate 21-2 for discovery of important virulence determinants.Current research in microbial sciences · 2025Article
- Virulence Structure and Genetic Diversity ofPlants (Basel, Switzerland) · 2022Article
- Combating powdery mildew: Advances in molecular interactions betweenFrontiers in plant science · 2022Review
- Virulence characteristics ofPeerJ · 2022Article
- Evaluation of resistance to powdery mildew and identification of resistance genes in wheat cultivars.PeerJ · 2021Article
- High Resolution Mapping of aFrontiers in plant science · 2020Article
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6 authors.
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Abstract
backgroundBlumeria graminis f. sp. tritici (Bgt), the causal agent of wheat powdery mildew severely affects yield security wheat production in China. Understanding the virulence structure and genetic variations of this pathogen is important for breeding wheat lines resistant to wheat powdery mildew. However, information related to genes controlling resistance remains elusive. This study analyzes the virulence structure and the genetic diversity of pathogenic Bgt populations isolated from northeastern (Liaoning, Heilongjiang) and northwestern (Gansu) China, two representative wheat producing areas, on 37 wheat cultivars each carrying a known powdery mildew resistance (Pm) gene.
resultsBgt isolates from northeastern China show higher frequencies of virulence genes than populations from Gansu Province. Many of the known Pm genes failed to provide resistance in this study. However, Pm21 provided 100% resistance to all isolates from all three provinces, obtained during two consecutive years, while Pm13 provided 100% resistance in Gansu. Pm13, Pm16, Pm18, and Pm22 also showed partial resistance in northeastern China, while Pm16, Pm18, Pm22, Pm5 + 6 and Pm2 + 6 +? maintained some resistance in Gansu. Genetic diversity among populations in different regions was detected by cluster analyses using expressed sequence tag-simple sequence repeat (EST-SSR). When the genetic similarity coefficient is relatively high, populations from the same regional origin are mostly clustered into one group while populations from different regions exhibit large genetic differences.
conclusionPm21 remains the best choice for breeding programs to maintain resistance to Bgt. Only 58% of the isolates tested show a clear correlation between EST-SSR genetic polymorphisms and frequency of virulence gene data.
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