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primary topic: Comparative genomics reveals the emergence of copper resistance in a non-pigmented Xanthomonas pathogen of grapevine

Comparative genomics reveals the emergence of copper resistance in a non-pigmented Xanthomonas pathogen of grapevine
type: AcademicArticle
type: Article
abstract: Xanthomonas citri pv. viticola (Xcv) is the causal agent of bacterial canker in grapevine. The pathogen is restricted to India, where it was first reported in the 1970s, and Brazil. In the present study, we report the first complete genome sequence of Xcv LMG965, which is a reference pathotype strain. We also report genome sequences of additional isolates from India and comparative genome-based studies of isolates from Brazil. Apart from revealing the monophyletic origin of the pathovar, we could also confirm a common frameshift mutation in a gene that is part of the Xanthomonadin pigment biosynthetic gene cluster in all the isolates. The comparative study also revealed multiple intrinsic copper resistance-related genes in Brazilian isolates, suggesting intense selection, possibly because of heavy and indiscriminate usage of copper as an antimicrobial agent in the orchards. There is also the association of a Tn3-like transposase in the vicinity of the copper resistance genes, indicating a potential for rapid diversification through horizontal gene transfer events. The findings, along with genomic resources, will allow for systematic genetic and functional studies of Xcv.
date: 2023-05-30
volume: 15
issue: 6
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
subject: QR Microbiology

Wiley
type: Organization

Environ. Microbiol. Rep.
type: Collection

Prabhu B Patil
type: Person
given name: Prabhu B
family name: Patil

Kanika Bansal
type: Person
given name: Kanika
family name: Bansal

Gagandeep Jaiswal
type: Person
given name: Gagandeep
family name: Jaiswal

Rekha Rana
type: Person
given name: Rekha
family name: Rana

HTML Summary of #3381 Comparative genomics reveals the emergence of copper resistance in a non-pigmented Xanthomonas pathogen of grapevine
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primary topic: Comparative genomics reveals the emergence of copper resistance in a non-pigmented Xanthomonas pathogen of grapevine

QR Microbiology
type: Concept