Patterns of Genomic Variations in the Plant Pathogen Dickeya solani

The plant pathogen Dickeya solani causes soft rot and blackleg diseases in several crops including Solanum tuberosum. Unveiling the patterns of its diversity contributes to understanding the emergence and virulence of this pathogen in potato agro-systems. In this study, we analyzed the genome of sev...

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Bibliographic Details
Published in:Microorganisms (Basel) 2022-11, Vol.10 (11), p.2254
Main Authors: Khayi, Slimane, Chan, Kok-Gan, Faure, Denis
Format: Article
Language:English
Subjects:
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Blackleg
Dickeya solani
Divergence
Gene transfer
Genes
Genetic diversity
Genomes
Genomics
horizontal gene transfer
Horizontal transfer
Life Sciences
Pathogens
Phylogenetics
phylogenomics
population genomics
Potatoes
Proteins
Single-nucleotide polymorphism
Soft rot
Software
Subgroups
Virulence
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Summary:The plant pathogen Dickeya solani causes soft rot and blackleg diseases in several crops including Solanum tuberosum. Unveiling the patterns of its diversity contributes to understanding the emergence and virulence of this pathogen in potato agro-systems. In this study, we analyzed the genome of several D. solani strains exhibiting an atypically high number of genetic variations. Variant calling and phylogenomics support the evidence that the strains RNS10-105-1A, A623S-20A-17 and RNS05.1.2A belong to a divergent sub-group of D. solani for which we proposed RNS05.1.2A as a reference strain. In addition, we showed that the variations (1253 to 1278 snp/indels) in strains RNS13-30-1A, RNS13-31-1A and RNS13-48-1A were caused by a horizontal gene transfer event from a donor belonging to the D. solani RNS05.1.2A subgroup. The overall results highlight the patterns driving the diversification in D. solani species. This work contributes to understanding patterns and causes of diversity in the emerging pathogen D. solani.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms10112254