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CsRDR1b and CsRDR1c genes in Cucumis sativus are crucial for plant defense against virus and oomycete co-infection.

Scientific reports - 24 Apr 2026

Leibman Diana, Sela Noa, Mordukhovich Gideon, Frenkel Omer, Gaba Victor, Dombrovsky Aviv

Abstract excerpt

Cucumber harbors RNA-dependent RNA polymerase 1 (RDR1) gene family of four genes (CsRDR1a, CsRDR1b, and CsRDR1c1/c2), which are induced upon virus infection. This study examined the roles of cucumber RDR1b and RDR1c1/c2 in defense against cucumber green mottle mosaic virus (CGMMV) during single and mixed infection with Pythium spp. Co-infection with CGMMV and the necrotrophic pathogen Pythium spinosum (P....

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Identifiers

PMID: 42031878
DOI: 10.1038/s41598-026-49663-0
PMCID: PMC13280252

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