Genomic Data Analysis of the Nonpathogenic Erwinia amylovora Strain CP200242 Isolated from an Asian Pear Tree

Abstract

Erwinia amylovora, the causative phytopathogen for fire blight, is a major threat to apple and pear. A nonpathogenic E. amylovora strain CP200242 was recently isolated from a pear orchard in South Korea. The nonpathogenicity of strain CP200242 was confirmed by inducing a hypersensitive reaction on tobacco leaves and by inoculating immature apple fruits and seedlings with bacterial suspensions. Herein, we report the complete genome sequencing of strain CP200242 data and provide some comparative genomic analysis against strain TS3128 and other closely related Erwinia species. Variant calling indicated that strain CP200242 had 29 variations in the annotated regions compared with strain TS3128, and six gene variants were related to pathogenesis. These genomic data provide valuable information on molecular differences between strains that may be useful for the control of the disease and enhance our understanding of the virulence factors in an E. amylovora reference genome. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license .