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The wheat powdery mildew genome shows the unique evolution of an obligate biotroph

Open access
Wicker, Thomas, Oberhaensli, Simone, Parlange, Francis, Buchmann, Jan P, Shatalina, Margarita, Roffler, Stefan, Ben-David, Roi, Doležel, Jaroslav, Šimková, Hana, Schulze-Lefert, Paul, Spanu, Pietro D, Bruggmann, Rémy, Amselem, Joelle, Quesneville, Hadi, Ver Loren van Themaat, Emiel, Paape, Timothy, Shimizu, Kentaro K, Keller, Beat·2013·Nature Genetics

Abstract

Thomas Wicker and colleagues report the whole-genome sequencing of four wheat powdery mildew (Blumeria graminis forma specialis tritici) isolates from different geographic regions. Their comparative genomic analysis provides insights into the evolution of powdery mildews, which are obligate biotropic fungal pathogens. Wheat powdery mildew, Blumeria graminis forma specialis tritici, is a devastating fungal pathogen with a poorly understood evolutionary history. Here we report the draft genome sequence of wheat powdery mildew, the resequencing of three additional isolates from different geographic regions and comparative analyses with the barley powdery mildew genome. Our comparative genomic analyses identified 602 candidate effector genes, with many showing evidence of positive selection. We characterize patterns of genetic diversity and suggest that mildew genomes are mosaics of ancient haplogroups that existed before wheat domestication. The patterns of diversity in modern isolates suggest that there was no pronounced loss of genetic diversity upon formation of the new host bread wheat 10,000 years ago. We conclude that the ready adaptation of B. graminis f.sp. tritici to the new host species was based on a diverse haplotype pool that provided great genetic potential for pathogen variation.

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Metadata

Authors
Wicker, T., Oberhaensli, S., Parlange, F., Buchmann, J. P., Shatalina, M., Roffler, S., Ben-David, R., Doležel, J., Šimková, H., Schulze-Lefert, P., Spanu, P. D., Bruggmann, R., Amselem, J., Quesneville, H., Ver Loren van Themaat, E., Paape, T., Shimizu, K. K., & Keller, B.
Venue
Nature Genetics
Published
2013-07-14
Volume
45
Issue
9
Pages
1092-1096
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2001402566
Cited by
247
References
1
FWCI
29.92
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: The wheat powdery mildew genome shows the unique evolution of an obligate biotroph. https://app.cochat.ai/papers/10.1038/ng.2704
The paper
Wicker, T., Oberhaensli, S., Parlange, F., Buchmann, J. P., Shatalina, M., Roffler, S., Ben-David, R., Doležel, J., Šimková, H., Schulze-Lefert, P., Spanu, P. D., Bruggmann, R., Amselem, J., Quesneville, H., Ver Loren van Themaat, E., Paape, T., Shimizu, K. K., & Keller, B. (2013). The wheat powdery mildew genome shows the unique evolution of an obligate biotroph. Nature Genetics. https://doi.org/10.1038/ng.2704

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.