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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Comparative genomics of Xanthomonas fragariae and Xanthomonas arboricola pv. fragariae reveals intra- and interspecies variations
Authors : Gétaz, Michael
Blom, Jochen
Smits, Theo H. M.
Pothier, Joël F.
et. al : No
DOI : 10.1186/s42483-020-00061-y
Published in : Phytopathology Research
Volume(Issue) : 2020
Issue : 2
Pages : 17
Issue Date: 24-Jul-2020
Publisher / Ed. Institution : BioMed Central
ISSN: 2524-4167
Language : English
Subjects : Type III effector; Virulence; Pathogenicity test; Secretion system
Subject (DDC) : 571: Physiology and related subjects
Abstract: The quarantine bacterium Xanthomonas fragariae causes angular leaf spots on strawberry. Its population structure was recently found to be divided into four (sub)groups resulting from two distinct main groups. Xanthomonas arboricola pv. fragariae causes bacterial leaf blight, but the bacterium has an unclear virulence status on strawberry. In this study, we use comparative genomics to provide an overview of the genomic variations of a set of 58 X. fragariae and five X. arboricola pv. fragariae genomes with a focus on virulence-related proteins. Structural differences within X. fragariae such as differential plasmid presence and large-scale genomic rearrangements were observed. On the other hand, the virulence-related protein repertoire was found to vary greatly at the interspecies level. In three out of five sequenced X. arboricola pv. fragariae strains, the major part of the Hrp type III secretion system was lacking. An inoculation test with strains from all four X. fragariae (sub)groups and X. arboricola pv. fragariae resulted in an interspecies difference in symptom induction since no symptoms were observed on the plants inoculated with X. arboricola pv. fragariae. Our analysis suggests that all X. fragariae (sub)groups are pathogenic on strawberry plants. On the other hand, the first genomic investigations of X. arboricola pv. fragariae revealed a potential lack of certain key virulence-related factors which may be related to the difficulties to reproduce symptoms on strawberry and could question the plant-host interaction of the pathovar.
Fulltext version : Published version
License (according to publishing contract) : CC BY 4.0: Attribution 4.0 International
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Published as part of the ZHAW project : DROPSA: Strategies to develop effective, innovative and practical approaches to protect major European fruit crops from pests and pathogens
Appears in Collections:Publikationen Life Sciences und Facility Management

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