ArticleFrontiers in plant science2026
A conserved structural framework accompanies evolutionary divergence and expression specialization in the grapevine SKP1 family.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: S-phase kinase-associated protein 1 (SKP1) proteins are conserved adaptor components of SCF E3 ubiquitin ligase complexes that connect F-box proteins with the CULLIN1 scaffold. Although SKP1-mediated regulation is essential for diverse plant processes, the evolutionary diversification and regulatory specialization of SKP1 family members in grapevine remain poorly understood. Methods: In this study, genome-wide identification, structural characterization, phylogenetic analysis, promoter analysis, transcriptome profiling, and subcellular localization assays were integrated to investigate the diversification of the grapevine SKP1 family. Results: Eleven VvSKP1 genes were identified in Discussion: These findings reveal a conserved structural framework underlying the grapevine SKP1 family while highlighting diversification in evolutionary relationships, promoter regulatory potential, and tissue-associated expression patterns. This study provides a comprehensive resource for understanding SKP1 family diversification and establishes candidate VvSKP1 members for future functional studies of SCF ubiquitin ligase complexes in grapevine.
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