Genome-Wide Identification of the <i>PR-1</i> Gene Family in <i>Pyrus betulaefolia</i> Bunge and Its Expression Analysis Under Fire Blight Stress.

Following infection with fire blight, we observed a significant increase in the activities of PPO and CAT in resistant Duli, demonstrating highly significant differences when compared to susceptible strains. qRT-PCR analysis further revealed that the expression levels of the majority of Pb-PR-1 family genes in resistant Duli were elevated post-infection relative to their susceptible counterparts.

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