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Botryosphaeriaceae gene machinery: Correlation between diversity and virulence
Marie Belair1, Julián D Restrepo-Leal2, Coraline Praz3
1Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, AFERE, Reims, France.
Fungal Biology
|May 4, 2023
Summary
Botryosphaeriaceae fungi are major crop pathogens. Comparative genomics reveals diverse enzymes (CAZymes, peptidases) linked to their pathogenicity, with potential biotechnological uses in lignocellulose breakdown.
Area of Science:
- Plant Pathology
- Fungal Genomics
- Biotechnology
Background:
- Botryosphaeriaceae fungi cause significant crop diseases, often triggered by environmental stress.
- Pathogenicity is linked to effector proteins like enzymes and metabolites.
- Understanding genetic factors is crucial for disease management and biotechnological applications.
Purpose of the Study:
- To conduct comparative genomic analyses of six Botryosphaeriaceae genera.
- To identify genetic features associated with fungal pathogenicity and virulence.
- To explore potential biotechnological applications of Botryosphaeriaceae species.
Main Methods:
- Comparative genomic analysis of 41 Botryosphaeriaceae genomes.
- Identification and quantification of carbohydrate-active enzymes (CAZymes) and peptidases.
- Analysis of secondary metabolite gene clusters and secretome composition.
Main Results:
- Botryosphaeriaceae genomes exhibit high diversity in CAZymes (128 families) and peptidases (45 families).
- Genera Botryosphaeria, Neofusicoccum, and Lasiodiplodia possess abundant CAZymes for plant cell wall degradation.
- Neofusicoccum parvum NpBt67 showed a high number of secretome constituents; Diplodia strains had fewer virulence genes.
Conclusions:
- Genomic insights reveal mechanisms of pathogenicity and virulence in Botryosphaeriaceae.
- Species within this family show potential as biotechnological tools for lignocellulose fractionation.
- Understanding these fungal pathogens aids in crop protection and bioeconomy development.
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