Author

A.-S. Walker

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Microbiology· 5 Evolutionary Biology· 4 Plant Biology· 1

Signature Assays, Organisms & Methods

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Research Focus:host-pathogen & immune response· 7 Approach:experimental assay· 5 Organism:fungi (other)· 5 Approach:statistical model· 4 Organism:plant (other)· 3 Research Focus:ecology & biodiversity· 2 Approach:benchmark study· 1 Research Focus:benchmarking· 1

Frequent Co-Authors

C. Duplaix· 5 shared F. Carpentier· 5 shared A. Ballu· 3 shared A. Deredec· 3 shared A. Mercier· 2 shared M. Viaud· 2 shared P. Gladieux· 2 shared S. Fillinger· 2 shared

Activity by Year

2017-2022 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 23 mutual co-author links

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5 shared papersEvolutionary Biology

C. Duplaix

Mutual co-authors in cluster

Author profile →

10 papers

Recent·Most cited

Preventing multiple resistance above all: new insights for managing fungal adaptation

A. Ballu, C. Ugazio, C. Duplaix, A. Noly, J. Wullschleger, S. F. F. Torriani, A. Deredec, F. Carpentier, A.-S. Walker

The paper shows that initial population composition, particularly multiple resistance, is the main determinant of fungal adaptation, overriding management strategies.

bioRxiv · Dec 17, 2022Evolutionary Biology

NGS data reveals the phyllosphere microbiome of wheat plants infected by the fungal pathogen Zymoseptoria tritici

D. Barroso-Bergada, M. Massot, N. Vignolles, J. Favre d'Arcier, E. Chancerel, E. Guichoux, A.-S. Walker, C. Vacher, D. A. Bohan, V. Laval, F. Suffert

The paper provides metabarcoding datasets of the wheat phyllosphere microbiome, including samples from wheat plants infected by Zymoseptoria tritici and surrounding weeds.

bioRxiv · Feb 7, 2022 · PreprintMicrobiology

Why do fungicide mixtures delay the evolution of resistance? An experimental evolutionary approach

A. Ballu, A. Deredec, A.-S. Walker, F. Carpentier

This study investigates how fungicide mixtures affect resistance evolution in Z. tritici by comparing single-component and mixture treatments under controlled conditions.

bioRxiv · Sep 15, 2021 · PreprintEvolutionary Biology

Directed evolution predicts cytochrome b G37V target site modification as probable adaptive mechanism towards the QiI fungicide fenpicoxamid in Zymoseptoria tritici.

G. Fouche, T. Michel, A. Laleve, N. X. Wang, D. H. Young, B. Meunier, D. Debieu, S. Fillinger, A.-S. Walker

This paper uses directed evolution to predict that a cytochrome b G37V mutation confers resistance to the fungicide fenpicoxamid in Zymoseptoria tritici.

bioRxiv · Sep 3, 2021Microbiology

Antifungal alternation can be beneficial for durability but at the cost of generalist resistance.

A. Ballu, P. Despreaux, C. Duplaix, A. Deredec, F. Carpentier, A.-S. Walker

This study shows that alternating fungicides can slow resistance evolution but increase generalist resistance in the pathogen Zymoseptoria tritici.

bioRxiv · Jul 11, 2021Evolutionary Biology

Monitoring systems for resistance to plant protection products across the world: Between redundancy and complementarity

R4P network, A.-S. Walker

The paper surveys global PPP resistance monitoring systems, finding that academic, governmental, and private systems coexist, with varying capacities and focuses on established vs. emerging resistances.

bioRxiv · Jul 30, 2020 · PreprintPlant Biology

Population genomics reveals molecular determinants of specialization to tomato in the polyphagous fungal pathogen Botrytis cinerea

A. Mercier, A. Simon, N. Lapalu, T. GIRAUD, M. Bardin, A.-S. Walker, M. Viaud, P. Gladieux

The paper identifies genomic features underlying host specialization in Botrytis cinerea populations adapted to tomato and grapevine.

bioRxiv · Jul 24, 2020Microbiology

Large-scale study validates that regional fungicide applications are major determinants of resistance evolution in the wheat pathogen Zymoseptoria tritici in France.

M. Garnault, C. Duplaix, P. Leroux, G. Couleaud, O. David, A.-S. Walker, F. Carpentier

This study shows that regional fungicide use strongly drives resistance evolution in Zymoseptoria tritici across France.

bioRxiv · Jul 17, 2020Evolutionary Biology

The polyphagous plant pathogenic fungus Botrytis cinerea encompasses host-specialized and generalist populations

A. Mercier, F. Carpentier, C. Duplaix, A. Auger, J.-M. Pradier, M. Viaud, P. Gladieux, A.-S. Walker

This study shows that Botrytis cinerea populations are specialized to tomato and grapevine but not other hosts, with some populations acting as generalists.

bioRxiv · Oct 7, 2019Microbiology

Plasticity of the MFS1 promoter leads to multi drug resistance in the wheat pathogen Zymoseptoria tritici

S. Omrane, C. Audeon, A. Ignace, C. Duplaix, L. Aouini, G. Kema, A.-S. Walker, S. Fillinger

The study identifies promoter insertions in the MFS1 gene as a mechanism for multi-drug resistance in Zymoseptoria tritici, highlighting the role of repeated genomic elements in adaptive resistance.

bioRxiv · Aug 10, 2017Microbiology