Transcriptome Analysis of Sweet Cherry (Prunus avium L.) Cultivar ‘Lapins’ upon Infection of Pseudomonas syringae pv. syringae

Weier Cui, Nicola Fiore, Franco Figueroa, Carlos Rubilar, Lorena Pizarro, Manuel Pinto, Set Pérez, María Francisca Beltrán, Claudia Carreras, Paula Pimentel, Alan Zamorano*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Bacterial canker caused by Pseudomonas syringae pv. syringae (Pss) is responsible for substantial loss to the production of sweet cherry in Chile. To date, the molecular mechanisms of the Pss–sweet cherry interaction and the disease-related genes in the plant are poorly understood. In order to gain insight into these aspects, a transcriptomic analysis of the sweet cherry cultivar ‘Lapins’ for differentially expressed genes (DEGs) in response to Pss inoculation was conducted. Three Pss strains, A1M3, A1M197, and 11116_b1, were inoculated in young twigs, and RNA was extracted from tissue samples at the inoculation site and distal sections. RNA sequencing and transcriptomic expression analysis revealed that the three strains induced different patterns of responses in local and distal tissues. In the local tissues, A1M3 triggered a much more extensive response than the other two strains, enriching DEGs especially involved in photosynthesis. In the distal tissues, the three strains triggered a comparable extent of responses, among which 11116_b1 induced a group of DEGs involved in defense responses. Furthermore, tissues from various inoculations exhibited an enrichment of DEGs related to carbohydrate metabolism, terpene metabolism, and cell wall biogenesis. This study opened doors to future research on the Pss–sweet cherry interaction, immunity responses, and disease control.

Original languageEnglish
Article number3718
JournalPlants
Volume12
Issue number21
DOIs
StatePublished - Nov 2023
Externally publishedYes

Funding

FundersFunder number
ANID FONDECYT11200934

    Keywords

    • GO enrichment
    • bacterial canker
    • differentially expressed genes
    • disease-related genes
    • distal responses
    • local responses

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