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Alvarez-Diaz, Juan C; Richard, Manon M S; Thareau, Vincent; Teano, Gianluca; Paysant-Le-Roux, Christine; Rigaill, Guillem; Pflieger, Stéphanie; Gratias, Ariane; Geffroy, Valérie
Genes, 01/2022, Letnik: 13, Številka: 1Journal Article
RNA silencing serves key roles in a multitude of cellular processes, including development, stress responses, metabolism, and maintenance of genome integrity. Dicer, Argonaute (AGO), double-stranded RNA binding (DRB) proteins, RNA-dependent RNA polymerase (RDR), and DNA-dependent RNA polymerases known as Pol IV and Pol V form core components to trigger RNA silencing. Common bean ( ) is an important staple crop worldwide. In this study, we aimed to unravel the components of the RNA-guided silencing pathway in this non-model plant, taking advantage of the availability of two genome assemblies of Andean and Meso-American origin. We identified six DCLs, thirteen AGOs, 10 DRBs, 5 RDRs, in both genotypes, suggesting no recent gene amplification or deletion after the gene pool separation. In addition, we identified one NRPD1 and one NRPE1 encoding the largest subunits of Pol IV and Pol V, respectively. These genes were categorized into subgroups based on phylogenetic analyses. Comprehensive analyses of gene structure, genomic localization, and similarity among these genes were performed. Their expression patterns were investigated by means of expression models in different organs using online data and quantitative RT-PCR after pathogen infection. Several of the candidate genes were up-regulated after infection with the fungus .
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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